Can anyone get a quick measurement and let me know what the thickness is of the rear compartment wall / separator? (see below) Doesn't really matter what year/model boat you have.

I'm about to rebuild/replace my existing ones that aren't cutting it for the new split cushion sundeck support.

Debating on going with 1/2" vs 3/4". The 1100 bags put a fair amount of stress on it, but then again I'm wondering if going thicker is overkill as these sheets are spendy stuff.