Fabric Cutting Explained: Bowing, Skewing, and Marker Waste
Bowing and skewing are fabric distortions — a curved or angled grain — introduced during fabric finishing, not by the cutter. They show up as twisted seams after washing. The standard prevention is relaxing fabric flat for at least 24 hours before cutting, letting it settle before pattern pieces are marked and cut.
Bowing and Skewing: The Two Cutting-Table Defects Buyers Notice Most
Bowing is when the fabric's crosswise grain curves instead of running straight, so a t-shirt's hem or side seam ends up slightly curved when it should be straight. Skewing is when the grain runs at an angle instead of straight across, which shows up as a garment's side seams twisting toward the front or back after washing.
Both come from the fabric itself, not the cutter — they're introduced during finishing, when fabric is stretched and dried under tension. A good factory relaxes fabric for 24 hours before cutting specifically to let it settle back into its natural, untensioned shape, which reduces both defects significantly.
Why Fabric Relaxation Isn't Optional
Cutting fabric straight off the finishing line, while it's still under the tension from processing, locks in whatever bow or skew was present at that moment. Once it's cut and sewn, that distortion is permanent in the finished garment.
Relaxing fabric flat, unrolled, for a minimum of 24 hours before cutting lets it return to a stable, resting state. This single step is one of the simplest, cheapest ways a factory prevents an entire batch of garments from twisting after the customer's first wash.
Marker Efficiency and Fabric Waste
A marker is the layout plan showing how pattern pieces are arranged on the fabric before cutting, designed to use as much of the fabric width as possible with minimal gaps between pieces.
Marker efficiency — the percentage of fabric actually used by pattern pieces versus wasted as scrap — typically runs 75-85% for most garment styles, with more complex or curved patterns landing lower and simple rectangular pieces landing higher. This percentage directly affects your fabric cost, since wasted fabric is fabric you still paid for.
What to Ask Before Bulk Cutting
Ask whether your factory relaxes fabric before cutting and for how long — 24 hours is the standard benchmark. Ask what marker efficiency they're achieving on your style, particularly for higher-value fabrics where wastage has a real cost impact.
If bowing or skewing shows up in a sample garment, don't approve it hoping bulk production will be better — the same fabric-tension issue that caused it in the sample will repeat at bulk scale unless the relaxation step is fixed first.
Fabric Cutting FAQ
Yes — knit fabrics, especially 100% cotton jersey, are more prone to it than wovens, because knit structures are inherently more elastic and easily distorted under tension during finishing.
No. Once fabric is cut with a bow or skew present, that distortion is locked into the panel shape and will show in the finished garment. It has to be addressed before cutting, through proper relaxation.
Lower marker efficiency means more fabric is wasted per garment, which is typically reflected in your fabric cost. Asking about it is a reasonable, normal part of a cost discussion, especially on higher-cost fabrics.
Want fabric properly relaxed and efficiently marked before cutting starts? SDF Clothing follows a 24-hour relaxation standard on every cutting order.
Discuss Your Cutting Requirements ›After cutting, sewing quality is the next stage worth understanding. Read Stitch Quality (SPI) Explained.
Choosing fabric weight before you get to cutting? See our Fabric GSM Explained guide.