Fabric Width
Fabric width is a specification that indicates the width of a textile from edge to edge in the crosswise direction, and it is an important dimension related to calculating material consumption, the efficiency of marker making, and ease of cutting.
Contents6 sections
Definition and Overview
Fabric width is the width measured across a bolt or roll of fabric from side to side. In general, it refers to the full width from selvage to selvage, but it may also be shown as the usable width, meaning only the portion that can be used for products. When placing orders or preparing specifications, it is necessary to confirm which width is being indicated.
Fabric width affects the required yardage and the layout of cutting even with the same pattern. A wider width does not necessarily mean less material will be used; pattern layout is considered based on fabric direction, grainline, part shapes, and whether pattern matching is needed.
Types of Width and How to Read the Indication
For woven fabrics, the width including the selvage that prevents fraying at both ends and the usable width excluding the selvage or edges may differ. For knits and fabrics with brushing or lamination, edge curling and processing conditions also affect the actual usable width.
Single width and double width are general categories used for fabric width. However, the specific dimensional range differs depending on the material, place of production, and trade practice, so do not judge by the name alone; check the indicated dimensions.
- Full width: the total width of the fabric including the selvage.
- Usable width: the width set as the portion available for cutting and product making.
- Fabric width indication: generally shown in cm, but tolerance and measurement conditions should also be checked.
Impact on Yardage and Pattern Layout
Required yardage changes not only with the pattern size, design, and number of pieces to be cut, but also with the fabric width. For patterned fabrics, one-way cutting to align the pattern direction and matching stripes or checks may require more material than usual.
For fabrics with a nap in one direction, brushed surfaces, sheen, or prints, it is important to keep the direction of the cut pieces consistent. In such cases, the freedom of pattern layout is reduced, so even if there is extra width, the required yardage may increase.
Selection and Handling Notes
When selecting fabric, consider not only the standard width but also the actual measured width confirmed during inspection, the condition near the selvage, and areas that need to be avoided due to flaws or stains. In mass production, width variation from bolt to bolt should also be anticipated, and setting the pattern layout based on the minimum width helps reduce cutting shortages.
Some materials change width after washing, pre-shrinking, or steam finishing to straighten the grain. Check the shrinkage rate and, if necessary, stabilize the fabric before cutting. For stretch knits, it is also important not to pull them forcibly sideways and to measure the width in a natural state.
Differences from Similar Terms
Fabric width is a horizontal dimension and is distinguished from the length of a roll. A roll refers to a trading unit of fabric or the rolled material itself, and the length contained in one roll varies by fabric.
The selvage is the fray-preventing part at both ends of a woven fabric. Depending on whether the selvage is included or excluded, the figures for fabric width and usable width may differ. Grainline is a term referring to the vertical and horizontal directions of the fabric, and does not indicate width itself.
Frequently Asked Questions
Should fabric width or usable width be used for yardage calculations?
As a rule, calculate using the usable width that can actually be cut. If the selvage area has flaws, stains, color unevenness, or processing defects and cannot be used, laying out the pattern based on the full width may lead to insufficient yardage. Before ordering, check the usable range in the specification sheet or on the actual material.
How much does the required fabric length change when the fabric width differs?
The degree of change depends on the pattern shape, size range, pattern direction, pattern matching, and cutting method. It cannot be calculated simply in proportion to the difference in width. For each fabric width used, calculate the required yardage based on a pattern layout that reflects the grainline and cutting conditions.
Can the indicated fabric width differ slightly from the actual width?
Yes. Fabric width can vary depending on tension, humidity, winding condition, processing conditions, and more. Differences may also occur between lots or bolts. In mass-production cutting plans, it is important not to rely only on the stated value, but to confirm the actual measurement at receiving and the tolerance.
