The carpeting fitted to most of the AC 2 Litre Saloons (and drop-heads) was a cut-pile type (or velvet pile) with a rubber base, and a hessian backing. Similar carpeting (minus the hessian backing) was used on the front seats and the door trim panels. The pile is quite short at about 4.5mm (0.18") deep.
I have produced a set of scale drawings from my original set of 1949 carpets. As with any hand-built car, the exact dimensions need to be adjusted for each car. Most of the carpet edges overlap each other, so the tolerances are very wide in those areas. There were 27 pieces of carpet fitted to my AC. I have included many of the leathercloth trim sections here too, since some of them are sewn to the carpets.
The sketches below show the general layout of the carpeting, excluding that found on the front seats. The small silver oval items are lift-the-dot fasteners.
Follow the text-links below to see the scale drawings for each carpet: