Spec sheet

A spec sheet lays out, size by size, every measurement point a manufacturer tracks for a single style: chest width, body length, sleeve length, neck opening, armhole depth, and the grading rule connecting each one from Small up through the largest size offered. Most also list measurement tolerance alongside each figure — Gildan publishes tolerances of about a half inch on chest and up to an inch on length right in the same document. It's a different artifact than a marketing-facing size chart, which usually strips the spec sheet down to just chest and length for the two or three sizes a shopper is likely to compare.

Buyers building a uniform program, a resale line, or anything requiring exact dimensions need the full spec sheet, not the abbreviated version on a product page. A school ordering staff polos across eight sizes wants to know the actual neck-opening and sleeve-length grade before locking a left-chest logo size that has to look consistent from Small to 4XL — that level of detail only lives on the spec sheet.

We pull the manufacturer's spec sheet before quoting any order with placement requirements that need to hold steady across a size run, since the abbreviated consumer chart simply doesn't carry enough measurement points to plan around.

The mistake is treating a product page's simplified size chart as equivalent to the mill's spec sheet. The chart is a convenience summary; the spec sheet is the actual engineering document, and only one of them has the numbers a uniform buyer or a private-label brand actually needs.