The floor still holds 18 of a 48x40. A second stack needs a loaded pallet of about 53 inches or shorter.
Yes. Cartons per pallet and loaded height come from the pallet calculator. The container tool places that finished pallet.
Nine times 48 inches is 432, and the internal length is 474, so about 42 inches remain. The straight tool does not turn that strip into another pallet.
A floor pattern that turns some pallets to use leftover inches. Keep it as a photographed standard. The calculator's reproducible 40ft answer is 18.
The tool covers geometry and payload. Door hardware, bracing, and axle limits can remove a pallet the geometry allows.
Compare 8 pallets against 18 for a 48x40, one high, then apply your rate per container and the payload.
48,060 pounds. Eight ordinary pallets do not reach it.
58,380 pounds. The floor count matches a standard 40ft unless the pallet is short enough to stack.