TextileGlossary.com

What is "Seam Allowance" - Definition & Explanation

The amount of fabric extending beyond a seam and not visible once the seam is sewn.
Narrow width between the seam line and the raw edge of the fabric. Seam allowances vary depending on where they occur on the garment and the manufacturers' specifications. Home sewing patterns generally have a 5/8" seam allowance except at hems. Commercial patterns generally use 1/4" to1/2" except at hems.
The width of fabric between the sewn seam and the cut edge. Traditionally 1/4 inch.

Some other terms

Some more terms:

A method of producing nonwoven fabric in a continuous process. Polymer is extruded through a spinneret and the resulting filaments are cooled and laid down in a web along a continuous conveyor belt....
Fabric that has been processed by dyeing, printing, applying of special resins and finishes, and is ready for market. Finishing: The process of dyeing, printing, etc.. of greige goods....
A woven fabric made on a dobby loom with an open mesh design that simulates a leno weave by interlacing and grouping the warp and weft yarns with spaces between the groups. Warp yarns are not paired...
A fabric in which certain yarns project from a foundation texture and form a pile on the surface. Pile yarns may be cut or uncut in the fabric. Corduroy and velveteen are examples of cut filling pile...
(polyolefin/polypropylene) - A manufactured fiber characterized by its light weight, high strength, and abrasion resistance. Olefin is also good at transporting moisture, creating a wicking action....

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