What is boarding in sock finishing?
Boarding heat-sets knitted socks on flat, foot-shaped forms with steam. It fixes each sock's final size, shape, and smooth retail finish.
Why socks are boarded
A sock coming off the knitting machine is a crumpled tube with no defined shape. Boarding, also called forming or ironing, pulls each sock over a foot-shaped board and heat-sets it with steam and dry heat. When it cools, the sock keeps a flat, pressed shape with a defined heel and toe.
Boarding does three jobs:
- Sizing: boards come in sizes, so socks from the same cylinder can be set to consistent lengths.
- Appearance: a pressed, smooth sock looks retail-ready in its packaging.
- Stability: heat relaxes the yarn so the sock is less likely to twist.
In production
The production site we use in Istanbul runs 3 automatic boarding machines, which feed the packing line. Audits list boarding as a core step alongside knitting, toe closing, and packing.
What to specify
Tell the factory your size chart so the right boards are used, especially for compression socks, where fit is measured. For dress socks, a crisp boarded finish is part of the premium look.