Maybe like 35lbs
it is hard smooth and flat which is good, how ever it does not hold nails well and will split , shatter and blow out with chunks and large holes in it when attempting to nail it and the strips that hold carpet in place are nailed into the wood, in this case the wood would be particle board. also heavy objects placed on it can cause it to split with a large crack across the entire surface, so if your kids, movers , etc, place a heavy object like a couch, sleeper sofa, etc. and do not baby the floor it can blow out.
Yes, it would be more stable thay equal thicnes of plywood.
yes
yes.
85 lbs
Yes
Hi, yes but you would need to contact your local stores pros desk to set up such a order.
these would be cut at your local store, so you would have to ask your local stores pros desk if in store cutting is available.
yes they can cut this wood to those dimensions.