Speaking as a total novice...
I thought the Hurricane was an all metal frame. The earliest examples had fabric covering the wings and fusalage. I thought that by the start of WW2 that the wings were metal covered and only the rear fusalage aft of the cockpit was fabric covered.
I can't recall that any of it was made of wood. (Unlike the famous Mossie).
I read that it had a great ability to withstand battle damage, one reason, but certainly not the only one was that the 20mm cannon shells used by the Germans were designed to explode on impact and if the shell hit the fabric then this impact wasn't sufficient to cause the fuse to action. Also the fusalage construction being tubular was fairly resistant to the exploding shells.
But as I say I'm a total novice and I must of read this stuff at school over 20 years ago. Hope one of the experts can clarify this for you.
20 years ago! aaarrrggghhh