Reply by benchbuilder

I found this from Chris Schwarz blog on translating Andrea Roubos woodworking books, I think you may find it usefull.

Menuisier, I. Part. Chap. V
Third Section
On tools for cutting and preparing wood

The workbench is the first and most necessary of all tools for “woodworking” see translator’s note No. 1 below). It is made up of a top, four legs, four rails and a bottom. The top is made from a sturdy plank or table of 5” to 6” thick by 20” to 25” wide; its length varies from 6’ to 12’, but the most common length is 9’. This table is made out of elm or beech wood but most commonly from the latter, which is very stout and of a tighter grain than the other.