The Panel Cart is used to transport panels (e.g., drywall/sheet metal/wood), roll goods, and other long and/or tall items. Some types have parallel uprights (two or three, removable); others have lean-to or A-frame configured uprights. Most models are of welded-frame construction, have two rigid and two swivel caster wheels, and are narrow enough to pass through 30-inch doorways. Some come with carpeted floor and uprights to protect the load.