A: You would have to ask a Home Depot associate that question. Maybe if the material was delivered to the store an associate might cut it for you.
A: You would need 64 pieced to cover 96 Sq Ft.
A: Yes, that is what I used it for. To my surprise poplar is much harder then pine, all my holes for wood screws had to pre drilled.
A: Yes, the 1/2 in. x 6 in. x 3 ft. Poplar board is strong enough to be used as a shelf, but it all depends on the span between supports and the weight of material placed on the board.
A: Keep it short or reinforce edges with 3/4 material.
A: Yes, the actual width is 5.5 inches, and the actual thickness is 0.5 inch.
A: Yes. 5.5" wide and 0.5" thick. Planed on both sides, rough cut to length. Minimal sanding required to get a smooth finish.
A: The actual width is 5 1/2" and actual thickness is 1/2".