the Williams system small flat bars are used, which are not quite horizontal, but pass alternately over and under the rolled joists which support the slabs.

A distinctive feature is the single wefted edges -- a weft is a piece of yarn that is horizontally integrated over and under vertical "warp" yarns to create rows.

Weave it over and under the pieces of webbing already attached.

It has an over and under glass door and dual refrigeration.

This is similar to criss-crossing, but the laces alternate going over and under one another for a more decorative look.