john hamilton wrote:
Novice has small angle grinder (takes discs 115 mm with central hole
diameter 22mm). The discs i've already got for it are for grinding
tiles and metal.

Having knocked down a very old cedar garden shed, I want to cut up
all the wood. I'm wondering if i buy one of the diamond discs
available for it, whether that would be reasonably ok for cutting
wood with? I cannot find any discs that are said to be specifially
for wood for this type of angle grinder.

Some of the shed cladding wood is very thin (with nails all over the
place) so i think the usual circular saw for wood would be a bit too
hefty and vigourous on this thin wood of the shed. Grateful for any
suggestions on the best type of circular disc to go for. Thanks.

Well, no.

First, the basic rule is the inverse relationship between tooth size and
material hardness: The harder the material, the smaller the teeth
(generally). For cutting granite, you use diamonds; for cutting soft wood
you use something like 24/tpi.

Second, a circular saw with a demolition blade won't even hiccup with a
nail.

Third, if the wood is too flimsy, stack up several pieces and cut the lot.

Me? I'd burn the stuff in situ and be done with it.