Unit 3: Grain, Selvage and Bias

What the Loom Leaves Behind: Warp, Weft and the Selvage

A piece of woven cloth is not a sheet of material. It is a structure, built out of two sets of threads that were put there on purpose, in two different directions, doing two different jobs. Once you can see that structure with your hands and your eyes, half the mysteries of sewing stop being mysteries. Garments that twist, hems that sag, bindings that ripple around a curve — nearly all of it traces back to threads running a direction the sewer never noticed.

The two sets of threads

The warp threads are strung onto the loom first. They run the entire length of the piece, held under steady tension the whole time the cloth is being made. Because they were stretched taut for hours before the weaving even began, they have already given up most of the stretch they had. The warp direction is called the lengthwise grain, or simply the straight grain, and it is the most stable direction in any woven fabric.

The weft threads are carried back and forth across the warp, over one and under the next, interlacing to lock the cloth together. The weft direction is the crosswise grain. It runs at a right angle to the lengthwise grain, and it has a little more give — not much, but enough that you can feel it once you know to look for it.

Between the two of them sits the bias: any diagonal across the weave. The particular diagonal at 45 degrees to both grains is the true bias, where the warp and weft can shift against each other equally and the cloth stretches the most it ever will. That is a large subject and it comes later. For now, notice only that a woven fabric behaves differently in three directions.

Reading the selvage

Along each long edge of a bolt runs the selvage — spelled selvedge by the English, and it is simply the word "self-edge." It is the finished edge the loom itself produces, where the weft turns around to make its return trip. It is usually about half an inch wide, and it does not fray. Nothing needs to be done to it.

It also runs exactly parallel to the warp, which makes it the most useful reference mark on the whole piece. Find the selvage and you have found the lengthwise grain without measuring anything.

Look closely and it will tell you more. Many fabrics show a row of small holes or pin marks where the cloth was gripped and held while it was finished. Printed cottons often carry the manufacturer's name, the designer, and a row of small colored dots showing every ink used in the print.

Do not sew the selvage into a seam. It is woven more densely than the rest of the cloth and it will often shrink at a different rate, which shows up later as a tight, puckered line down the side of a skirt. Cut it away, or at minimum clip into it every three or four inches so it cannot draw up.

Feeling the grain with your hands

Lay the fabric flat. Take hold of it at two points about six inches apart, running parallel to the selvage, and tug gently. You will feel almost nothing give. Now take hold across the width, the same six inches apart, and tug the same way — a little spring, a little more life. Now take hold on the diagonal and tug once more. The difference there is unmistakable.

Ten seconds of this on every new piece of cloth will teach you more than a page of description. Do it before you cut anything, every time, until it becomes a habit you no longer think about.

Why it is worth the trouble

Scripture speaks of the wise-hearted women who spun by hand for the tabernacle, bringing blue and purple and scarlet and fine linen. They knew warp from weft the way you know the road home, because they had made it themselves thread by thread. We buy our cloth ready woven, and the knowledge that came free to them we have to go looking for. It is worth going after. Handling material honestly and understanding what it will do is part of doing good work, and good work is offered to God as surely as anything else we do.

Finding the Lengthwise Grain When the Selvage Is Gone

A great deal of the cloth that passes through a thrifty sewing room arrives with no selvage at all. Remnants get trimmed square at the counter. Fat quarters are cut from the middle of a bolt. Sheets, tablecloths and curtains come already hemmed on all four sides, and a good wool coat cut up for its material has no edges left worth the name. None of that is a reason to guess. There are four reliable ways to find the warp direction on a piece of cloth that will not tell you.

Test one: the stretch comparison

This is the fastest and it costs nothing. Take the piece by two points about six inches apart and pull gently. Turn the cloth ninety degrees and pull the same distance with the same pressure. One of those two directions gives noticeably more than the other. The stiffer one is the lengthwise grain, because those warp threads spent the whole weaving under tension and have little left to give.

Do it two or three times in different spots before you decide. On a firm quilting cotton the difference is small and you want more than one reading. On a loosely woven linen or a rayon challis it is obvious the first time.

Test two: look at the threads

Hold the fabric up so a window or a lamp shines through it. On most plain weaves you can see the two thread systems crossing. The warp threads are frequently finer, more tightly twisted and more evenly spaced than the weft, because they had to survive the abrasion of the loom. Warp is often sized for the loom as well, which can leave it looking slightly glossier or harder than the softer weft lying across it. A magnifying glass helps on fine shirting. So does laying a scrap of white paper behind a dark fabric.

Be careful with twill. The diagonal wale of a twill runs between the two grains by definition, so it does not point along the warp and cannot be read as though it did. On a steep warp-faced twill such as denim the wale leans toward the lengthwise grain, which can confirm a reading you have already taken by stretch; in an even 2/2 twill it sits at roughly forty-five degrees to both and tells you nothing about grain at all. Treat the wale as a corroborating hint, never as a first test.

Test three: pull a thread

This one gives you a line you can cut on. Snip about a quarter inch into the raw edge, catch a single thread with a pin or your fingernail, and draw it out. The fabric gathers up along that thread as it comes, leaving a visible channel. Slide the gathers along, take a fresh grip, and keep easing it out. If the thread snaps — and on long pieces it usually does — cut along the channel as far as you have it, then pick up the broken end and go on from there.

The thread you pull runs one direction only. Pull one parallel to what you believe is the warp and one at a right angle to it, and you have both grains marked in ink the cloth wrote itself.

Test four: the tear

Firm, plain-woven cottons and linens tear beautifully along both grains. Snip an inch into the edge and rip. A straight, clean tear that runs true means you have torn along a grain. Try it on the diagonal and the tear wanders, angles, and fights you, because there is no continuous thread for it to follow. That contrast is worth doing once on a scrap simply to feel it.

Tearing is not for everything. It stretches and weakens the two or three threads either side of the tear line, so allow a little extra and press the torn edge before cutting. Do not tear a loose weave, a knit, anything with a pile, or a fabric you cannot spare an inch of. When in doubt, pull a thread instead.

Marking what you found

Once you know which way the warp runs, say so on the cloth before you put it down and forget. A short line of chalk, a snip in one corner, or a loose basting stitch along one edge will do. Sewers who work in short evenings lose more time to re-testing yesterday's fabric than to any other habit.

The virtuous woman of Proverbs seeks out her wool and her flax and works willingly with her hands. Seeking comes first. She knows her material before she commits it, and the willingness in her hands is not frantic hurry but steady, gladly given attention. Five minutes finding the grain is not a delay in the work. It is the work.

Squaring the Crosswise Grain Before You Cut

The cut end of a piece of yardage is almost never square. A clerk pulls the bolt across a counter, lays a rule on it and cuts — and even a careful clerk is cutting a moving, sliding cloth by eye. The end you bring home may be off by an inch or by four. If you fold that piece selvage to selvage and start laying out a pattern against that crooked end, every measurement afterward inherits the error. Squaring the end takes about three minutes and it is the foundation everything else stands on.

What "square" actually means

Square means the cut edge follows one single crosswise thread from selvage to selvage, so it meets the lengthwise grain at a true right angle. It does not mean the edge looks straight. An edge can look perfectly straight to the eye and still cross forty different weft threads on its way over. Your ruler cannot see threads. The cloth has to show you where the line is.

Three ways to find the line

Pull a thread. Clip a quarter inch into the edge just below the selvage, catch one crosswise thread, and ease it out across the full width. Where it breaks, cut along the channel you have so far, find the broken end, and carry on. Then cut along the gathered channel from selvage to selvage. This works on nearly everything and it is the method to trust when the fabric is precious.

Tear it. On a firm plain-woven cotton or linen, snip an inch in below the selvage and rip straight across. The tear follows one weft thread by nature. Cut through the selvage itself with scissors rather than trying to tear it, because the dense selvage will often stop a tear dead or run it off course.

Cut along a stripe, check or rib. On a woven check, a corduroy wale, or a woven stripe, the pattern is made of threads and therefore follows the grain. Cut along it and you are on grain. Be careful here: a printed stripe is ink laid on the surface and may have been printed crooked. Only woven markings can be trusted.

Checking with a right angle

Once one crosswise end is true, fold the fabric selvage to selvage and lay it on a table. If the piece is on grain, the selvages stack neatly, the squared end lies flat, and the fold falls without a wrinkle. Set a carpenter's square, a quilting ruler, or the corner of a table against the squared end and the selvage. If they meet at 90 degrees, you are ready.

If they do not — if the squared end runs away from the ruler, or the two layers refuse to lie down together while the selvages are matched — the piece is off-grain. That is not a cutting problem, and you will not fix it by cutting again. It is the next subject.

What goes wrong

The commonest failure is squaring one end and forgetting the other. Both ends of a length need to be true before layout, and so does the raw edge of a piece you cut from a larger one last month.

The second is pulling the thread too hard. Ease it, do not haul on it. A yanked thread snaps every four inches and leaves you starting over ten times across a 45-inch width.

The third is squaring the fabric and then dragging it off square again while pressing. Press by lifting the iron and setting it down, not by shoving it along like a broom. A hot iron pushed hard down a length of damp linen can move the grain visibly in one pass. Keep the iron off the extension cord, keep the cord where a child cannot hook it, and set the iron on its heel every single time you let go of it.

The prophet speaks of judgment laid to the line and righteousness to the plummet — the mason's cord and the weighted string that tell the truth about a wall no matter how good it looks. A cloth has its own plumb line running through it. Our part is not to invent the line but to find the one that is already there and to honor it.

Why a Skirt Twists: Recognizing Off-Grain Cloth

A woman sews a simple straight skirt. The measurements are right, the seams are even, the hem was marked with care. She puts it on and within an hour the side seam has crept around toward the front of her leg and the hem hangs lower on one side than the other. Nothing she does will cure it. She concludes she is a poor sewer. She is not. She cut a skirt out of cloth that was off-grain, and the cloth is doing exactly what off-grain cloth does.

What off-grain means

In a piece that is on grain, warp and weft cross at a true right angle. Off-grain means that right angle has been knocked out of square: the weft threads no longer run straight across the warp but slant, so the whole weave sits like a pushed-over gate.

It happens in ordinary handling. Cloth is stretched over rollers as it is finished and dyed, wound under uneven tension onto a bolt, dragged across a cutting counter, folded and shipped and folded again. A wet piece hung crooked on a line and left to dry in that shape can set that way. None of it is anyone's fault, and it is common enough that checking is simply part of the work.

How to see it

Square one crosswise end by pulling a thread or tearing. Then fold the piece in half, selvage to selvage, on a flat table, and match the selvages exactly.

On grain, the two layers settle down together, the fold lies smooth, and the squared ends stack.

Off grain, you will see one of these: the squared ends refuse to line up even though the selvages are matched; a soft ripple or bubble runs down the length near the fold that no smoothing will flatten; or the corners will not make a right angle against a ruler. Match the selvages and the ends go crooked, or square the ends and the selvages part company. You cannot have both, and that is the whole diagnosis.

Printed crooked, woven crooked

Learn to tell two different problems apart, because only one of them is off-grain.

A woven check, stripe or rib is made of threads. If it looks crooked, the grain is crooked.

A printed check or stripe is ink laid on the surface after the weaving, and it can be printed slightly askew on cloth whose grain is perfectly true. Here you have a genuine choice to make, and it is worth making it deliberately at the fabric store rather than at the cutting table. Cut on grain and the garment will hang correctly while the print runs downhill across it. Cut to the print and the print will look right until the first wearing, when the garment starts to twist. The grain wins in the long run; a print that is badly off is a reason to leave the bolt on the shelf.

What it costs you if you ignore it

Off-grain cloth cut into garment pieces produces the whole familiar list: side seams that spiral, hems that dip and sag, bodices that bunch across the chest, sleeves that will not hang plumb, trousers that turn on the leg. Because the tension is built into the cut pieces themselves, no amount of re-stitching, re-hemming or pressing will remove it. Once the shears have gone through, the distortion is permanent.

That is the sober part. The Preacher's line about the crooked that cannot be made straight fits a crooked cut of cloth almost too well. But it is only true after the cutting. Before the cutting there is very often something you can do, and doing it is the next piece of work.

Two minutes of habit

Before any layout, on any fabric: square one end, fold selvage to selvage, look at the fold, check a corner with a square. Say out loud whether the piece is on grain or off. Sewers who make this a fixed habit stop producing twisted garments almost entirely, not because they became more skillful with a needle but because they stopped cutting into cloth that was going to fail them.

Coaxing Cloth Back onto Grain, and Knowing When to Stop

Off-grain cloth is not automatically ruined cloth. Most moderate cases can be worked back close enough to true that a garment will hang properly. What straightening asks of you is patience and a light hand, and a willingness to stop before you do harm.

Wet it first

The simplest correction is often water. Many pieces come off the bolt held in a distorted shape by finish, tension and the way they were rolled, and a soak relaxes the threads enough that they settle back on their own. Since the fabric needs preshrinking anyway before a garment is cut, the two jobs go together.

Wash or soak the piece by the method the finished garment will get. While it is still damp, lay it out flat on a bed covered with towels or on a clean floor, pull it gently square, and leave it to dry that way. Match selvage to selvage, bring the squared ends into line, and check a corner with a ruler before you walk away. A great many pieces come off the towels straight and need nothing else.

The bias pull

For what remains, the correction is a diagonal pull. Off-grain means the square has been pushed over into a slant, so you pull on the diagonal that is too short and bring the corners back where they belong.

Take hold at two opposite corners — the pair that lie closest together — and draw them steadily apart. Not a snap, not a heave: even, consistent pressure held for a moment. Then move along the length about twelve inches, take a fresh grip corner-toward-corner on the same diagonal, and pull again. Work all the way down the piece. On anything wider than a yard, this is far easier with a second pair of hands, one person at each corner, both pulling at once.

Then lay the piece down, re-fold selvage to selvage, and look again. Expect to repeat the whole trip two or three times. You are nudging thousands of threads a fraction of an inch each, not wrenching a sheet into shape.

Steam, gently

Steam helps the threads relax into their new position. Set the iron to the correct heat for the fiber, work with the grain rather than diagonally across it, and lift and place the iron instead of shoving it — pushing the iron along is itself a common way to create off-grain, especially on damp linen and on long pieces.

Test on a scrap first, always. Heavy steam at high heat can leave permanent water spotting on silk and some finished fabrics, and synthetics take a much lower setting than cotton. Keep the iron on its heel whenever your hand leaves it, keep the cord clear of the table edge, and if children are in the room, an iron heating unattended is the one thing in a sewing room that will burn somebody.

Knowing when to stop

Not every piece will come back, and forcing one is worse than accepting it.

Stop pulling when the fabric feels stressed — when threads look strained apart, when the surface goes thin or shiny at the corners you are gripping, when a loose weave begins to open up. Loosely woven fabrics, delicate silks and wools, and hand-dyed pieces will distort or thin under hard pulling long before they straighten. Some fabrics carry a permanent finish that has set the weave where it is; those will not move no matter what you do.

When a piece will not come true, you still have honest choices. Use it for small pieces where a slight slant does no visible harm — pockets, facings, bags, a lining, patchwork. Use it for something unfitted. Or set it aside for practice yardage, which is worth more than most people think.

Bezalel was filled with the Spirit of God in wisdom, in understanding, in knowledge, and in all manner of workmanship. Notice that wisdom and understanding are named alongside the skill of the hands. Knowing when to press on and when to leave a thing alone is not a lesser gift than knowing how to pull a diagonal. It is part of the same craftsmanship.

Preshrinking the Whole Garment: Lining, Interfacing and Binding Too

A garment is not one material. It is a fashion fabric with an interfacing fused or basted inside the collar and cuffs, perhaps a lining, perhaps a binding at the neck, a length of twill tape across a shoulder seam, thread through every seam. Each of those may shrink at its own rate the first time the finished thing meets hot water. If they do not shrink together, they tear at each other, and the result shows up as puckered seams, a collar that ripples, a lining that hangs below the hem or drags the outside up short.

Preshrinking is not only about the yardage. It is about making every component agree.

Match the method to the future

The governing rule is simple: preshrink each material by the same method the finished garment will actually be cared for.

If the dress will go into a warm machine wash and a tumble dryer, wash and dry the yardage that way first. If it will be hand washed and hung, hand wash and hang it. If it is a wool coat that will be dry cleaned, it is not going in your sink; a dry cleaner can preshrink it, and a thorough steaming with the iron held above the surface accomplishes something similar on smaller amounts.

Two cautions belong here. First, choose the water temperature the fiber can safely take — silk, wool and some linens want gentle handling and their care labels are worth reading rather than guessing at. Second, decide the garment's real care method before you preshrink, not afterward. Preshrinking for a gentle hand wash and then washing the finished dress hot undoes the entire exercise.

Every component, separately

Do the whole shopping list at once, each in its own way.

Fashion fabric. Zigzag, serge or pink the two cut ends before it goes in the machine, or you will spend an evening picking a rope of tangled threads off the rest of the piece.

Lining. Wash it exactly as the garment will be washed. A lining that shrinks after the fact is one of the most miserable faults to live with, because it pulls the outer fabric out of shape from the inside where you cannot get at it.

Interfacing. Fusible interfacing is generally not machine washed, because agitation and dryer heat can disturb the adhesive. The common practice is to soak it in hot tap water, leave it a good while, lift it out without wringing, and let it drip dry. Sew-in interfacing can simply be treated like the fabric it will accompany.

Binding, twill tape, trim, ribbon, elastic. These are small and they are easy to forget, and cotton bias binding in particular can shrink noticeably. Wet them, dry them, and be done with it.

Expect to lose some cloth

Preshrinking takes length and width out of a piece, sometimes very little and sometimes enough to matter. Buy your yardage with that in mind, especially on a long garment or a close layout. It is much cheaper to have half a yard left over than to be six inches short of a sleeve with the bolt sold out.

Preshrinking also has a second benefit worth naming: the wetting relaxes many pieces back toward true grain, so the same trip through the wash does two jobs. Dry the piece laid out square, or take it from the dryer while it is still slightly damp and smooth it out flat, and you gain much of the straightening for free.

Paul writes of the body that there should be no schism in it, but that the members should have the same care one for another. It is a picture of the church, and it happens also to describe exactly what a well-made garment does. Collar, lining, binding and cloth all move together, or they pull against each other and the seam between them puckers. Care given to the humblest component keeps the whole from being divided.

Folding to True Bias: Making the Forty-Five Degree Crease

Sewers talk loosely about "cutting on the bias," and much of the time what they mean is simply "cutting on some diagonal." The two are not the same thing. True bias is one exact line: the diagonal at 45 degrees to both the lengthwise and the crosswise grain, where warp and weft can shift against one another equally. That is where the stretch is greatest and the drape is smoothest. Thirty degrees off the grain gives you some stretch, unpredictably; 45 gives you the full measure, consistently. Since the difference is easy to find, there is no reason to settle for approximately.

The fold that finds it

You do not need a protractor. The fabric will produce the angle for you, provided one crosswise end has been squared first by pulling a thread or tearing. Everything below depends on that, and if the end is off by two inches the crease will be off by the same amount.

Lay the fabric flat with the selvage running away from you and the squared end across the top. Take the corner where the two meet, and fold the lengthwise edge — the selvage — over and down until it lies directly on top of the squared crosswise edge. Smooth the fold. The crease you have just made is true bias.

The reason is plain once you see it: you have folded a right angle exactly in half, and half of 90 is

1. The two edges must lie precisely on each other for it to be true, so take the trouble to match

them, not merely bring them near.

Proving it before you trust it

Two checks are worth doing.

Measure out from the corner along the selvage, say ten inches, and mark. Measure ten inches from the same corner along the squared end, and mark. Draw a line between the two marks. If your fold is true bias, it runs right along that line, because it is the diagonal of a square.

Then run a hand along the crease and pull gently across it. The give should be obvious and springy, noticeably more than either grain direction.

Once you are satisfied, mark the line with tailor's chalk or a hem marker before you unfold, and mark several parallel lines out from it if you plan to cut strips. Press the crease only lightly, or not at all — a hard press on a bias fold sets a stretched line into the cloth that can be difficult to remove.

Where the fold goes wrong

The end was never squared. This is the failure behind nearly every bad bias fold. A cut end that looks straight is not enough; it must follow one crosswise thread.

The selvage is tight. A drawn-up, puckered selvage will not lie flat against the crosswise edge and will pull the fold off angle. Clip into the selvage every few inches, or cut it off, before you fold.

The fabric was stretched during folding. Bias fabric grows the instant you handle it carelessly. Move it with flat hands, lift rather than drag, and let it settle on the table before you mark.

Measuring the angle by eye. Forty degrees looks a great deal like forty-five on a table top, and strips cut at slightly different angles behave differently from one another when they are joined — one stretches, the next resists, and the binding ripples.

Counting the cost first

Our Lord asked who would build a tower without sitting down first to count the cost. It is a warning against beginning what we have not measured, and it applies to a table full of cloth as much as to a tower. The three minutes spent squaring an end, folding a true corner and proving the line with a ruler are not delays keeping you from the work. They decide whether the work stands up.

What the Bias Does: Drape, Give, and the Discipline of Not Pulling

Cut a strip two inches wide along the lengthwise grain and another two inches wide on true bias. Pull each one crosswise between your hands. The lengthwise strip barely answers. The bias strip lengthens, narrows, and springs back when you let go. It has not become elastic — there is no rubber in it. The warp and weft are simply free to scissor against each other when the pull comes at them diagonally instead of straight along a thread.

That single property explains everything bias does well and everything it does badly.

Why bias drapes

Because the weave can shift, bias-cut cloth follows a curve instead of breaking over it. A bias skirt falls in soft, rolling folds rather than standing away in stiff creases. A bias facing lies smooth around a curved neckline. Bias binding travels around a scallop without a single pleat. Where straight-grain fabric must be darted, gathered or eased into a shape, bias simply goes there.

It is also the reason bias garments follow the figure closely, and that is worth thinking about before the cloth is cut rather than after the dress is finished. Scripture asks for modest apparel, and modesty is easiest and happiest when it is designed in from the start. A bias-cut skirt gathered at the waist and full below, in a cloth with body rather than a slippery one, gives you all of the lovely movement and none of the clinging. A bias panel under a fitted bodice, a bias yoke, a bias sleeve, a bias binding at a neck — these use the technique where it helps and keep the garment's shape where the shape matters. Cut generously and let the cloth move away from the body, and bias becomes one of the kindest things in a sewing room rather than something to be wary of.

Bias grows

A bias-cut piece hanging under its own weight keeps lengthening for a day or more. It also narrows as it lengthens, which is why a bias skirt hemmed the moment it was sewn will droop unevenly by the end of the week.

The remedy is patience. Hang the finished garment for at least twenty-four hours before marking the hem, then mark it while it hangs on the wearer, measuring up from the floor rather than down from the waist. Trim away whatever has dropped. Hem it after, and it will stay where you put it.

The discipline of not pulling

The stretch in bias is a gift you spend once. Use it up during construction and the garment is permanently distorted before it is ever worn.

At the machine, feed and support the fabric without pulling it. Let the feed dogs draw the cloth through and keep your hands beside the seam rather than behind it, tugging. A universal 80/12 needle suits most medium-weight wovens, and a normal stitch length of about 2.5 mm is fine on bias seams. A walking foot, or an even-feed setting if your machine has one, keeps the two layers from creeping apart.

Pin more closely than you would on straight grain — every two inches or so on a long bias seam. On a light, slippery cloth, stitching through a strip of tissue paper laid under the seam gives the feed dogs something to grip; tear it away afterward.

Carry bias pieces flat, on both hands or on a piece of cardboard, never dangling from one corner. Press with the iron lifted and set down, never pushed. And do not "help" a bias seam through a curve by stretching it — ease it, pin it, and let the needle do the work.

When bias is the wrong choice

Anything that must hold a shape — a waistband, a collar stand, a cuff, a button placket, a straight side seam meant to stay straight — belongs on lengthwise grain. If you find yourself turning a pattern piece sideways to make it fit on a narrow remnant, stop. Accidental near-bias in a piece designed for stability is one of the surest ways to produce a garment that twists and never settles.

Cutting and Joining Bias Strips for Binding a Curve

Bias binding is the most useful thing true bias does. A curved neckline, a scalloped hem, an armhole, the rounded corner of a potholder — a straight-grain strip will pucker on the inside of a curve and ripple on the outside, while a bias strip travels around either one and lies flat. Packaged binding is convenient, but it comes in a short list of colors and often in a poor cloth. Cutting your own from the garment fabric, or from something chosen to go with it, costs an hour and looks entirely different.

Cutting the strips

Square a crosswise end, fold the selvage down to it to make the true bias crease, and mark that line. Then mark parallel lines out from it at the width you need, and cut along them.

How wide? For double-fold binding, where the strip is folded in half and both raw edges turn inside, cut four times the finished width. A half-inch finished binding wants a two-inch strip. For single-fold binding applied like a narrow facing, cut about twice the finished width plus your seam allowances. Cut a generous test strip first and fold it before you cut the whole yard.

A rotary cutter and a long acrylic ruler make this quick, and quick matters when you need eight feet of binding. Cut on a proper mat, cut away from your body, keep the fingers of your ruler hand well back from the edge, and close the blade guard every time the cutter leaves your hand. That blade will open a finger before you have felt it. It has no business anywhere a child can reach it.

Joining the strips

Bias strips are short by nature, so they must be joined, and the joins are made on the straight grain with a diagonal seam. Cutting the strips at 45 degrees means their ends are already cut on grain.

Lay two strips right sides together at a right angle to each other, overlapping the ends so that a small triangle of each extends past the other by about a quarter inch. Stitch straight across the overlap from corner to corner. Open it out: you have one continuous strip with a diagonal seam running across it. Press the seam open and trim off the little points that stick out past the edges.

The diagonal is not decoration. A straight-across join puts every thread of the seam in one place, so a lump appears at that spot when the binding is pressed and stitched down. Spreading it across the diagonal makes it disappear.

Applying it to a curve without ripples

The temptation on an outer curve is to stretch the binding to make it reach. Resist it. A binding stretched as it is applied will relax afterward and force the edge to cup and flute.

Instead, shape the strip with the iron before it goes anywhere near the garment. Lay it on the board in a gentle curve, steam it, and coax the inner edge in and the outer edge out. It will hold that shape. Then pin it to the garment edge without tension — pin the ends, pin the middle, then fill in between — and stitch at a steady, unhurried pace.

If a bound edge ripples when you are finished, the binding was stretched. If a bound edge cups and pulls tight, the binding was applied short. Both are fixed the same way: unpick it, press the strip flat and re-shape it, and lay it on again without pulling.

Of Dorcas it is recorded that the widows stood weeping and showed the coats and garments she had made while she was with them. What survived her was ordinary needlework given to people who needed it. A neatly bound edge is a small thing, and small things made carefully for other people are exactly what that account is about.

Placing the Grainline Arrow: Layout, Nap and Directional Prints

Every piece of a commercial pattern carries a long arrow, usually with a point at each end. That arrow is the single most important mark on the piece. It says: this line must run parallel to the lengthwise grain of the cloth. Get it right and the garment hangs. Get it wrong and no amount of good stitching will rescue it.

Pinning the arrow parallel, and proving it

Eyeballing it is not good enough, because a piece can look parallel while sitting two degrees off, and two degrees is enough to make a trouser leg turn.

Lay the piece roughly in place. Pin one end of the grainline arrow. Measure from that pinned point straight across to the selvage or the fold, and note the distance. Then measure from the other end of the arrow to the same edge. Swing the pattern piece until the two measurements are identical, then pin the second end of the arrow. Only after both ends are pinned and equal do you pin around the outside of the piece.

On a folded layout, measure to the fold rather than the selvage; the fold, if the fabric was squared and folded properly, runs on grain too. Do this on every piece, including the small ones. Facings, pockets and waistbands go crooked as easily as skirt panels, and a facing cut off grain will ripple inside a neckline forever.

The trap of the narrow remnant

Here is where most grain errors are born. The cloth is a little too narrow, one piece will not quite fit, and it is so easy to rotate it fifteen degrees and gain the inch you need. Do not.

A piece rotated off grain is a piece cut on partial bias. It will stretch where it was meant to be stable, sag at the hem, and twist on the body. Better answers: cut that piece from a leftover length, piece a facing or an under-collar from two parts, choose a different pattern for that fabric, or set the cloth aside for something it is actually big enough for. Thrift is buying wisely and using everything, not ruining a day's sewing to save six inches.

Nap, pile and one-way prints

Some fabrics look different depending on which way they face. Velvet, corduroy and brushed synthetics have a nap: fibers standing in one direction, smooth one way and rough the other, and catching light differently each way. Run your palm along the length and you will feel it at once; look at the same cloth from both ends and one will read darker.

Cut two pieces of napped cloth in opposite directions and sew them together and they will appear to be two different shades of the same color, in the same garment, under any light in the house.

The remedy is a with nap layout: every pattern piece laid in the same direction, tops all pointing the same way, none turned end for end to save cloth. Before laying anything out, decide which way the nap runs and mark the top of the fabric with chalk or a safety pin.

The same rule catches sewers out on ordinary cotton, because a directional print — trees, flowers with stems, animals, a landscape — is just as one-way as velvet, even though your hand feels nothing. A bodice with upside-down deer on it is a finished garment nobody wears.

With-nap layouts take more yardage than the two-way layouts, so buy the "with nap" figure on the pattern envelope whenever the cloth is napped or the print is directional.

Gathering the fragments

Our Lord fed the multitude and then had the fragments gathered so that nothing should be lost. Keep your scraps: bias strips, pockets, patches, doll clothes and quilt pieces come out of them for years. But notice the order of it. The bread was given generously first, and the gathering came after. Cut your garment right, on grain, with the yardage it truly needs — and then let nothing go to waste.