Our Square tube Interior Steel Rolling 6 ft Scaffold has a 1000 lbs load capacity (distributed evenly). The locking casters swivel for convenient 360-degree mobility. Unique design protects the double locking pins to prevent accidental unlocking or re-lease. Deck pins secure plywood to scaffold frame. Platform height is adjustable in 2 inch increments for unique working heights and uneven surfaces such as a stairwell. This unit is great for interior jobs such as hanging drywall, painting or work that re-quires to be on a platform for an extended period of time. Base units are stackable. Requires outriggers when stacking 12’ or higher.