Professional grade scaffolding, for use in interior or exterior applications, is designed to endure everyday use around a construction site. The 6 ft. wide x 30 in. deep platform rolls through a 30 in. doorway and provides a stable, safe, spacious work surface, enabling better quality of work and productivity. The tower assembles in minutes. The platform height is easily adjustable from 1 ft. to 12 ft. in 2 in. increments with a maximum standing height of 12 ft. . Designed for safety, this unit features ribbed non-slip ladder rungs and heavy-duty 5 in. casters that are 1-1/2 in. wide with industrial steel yokes and brakes. This unit comes with a two piece guard rail system and easily assembles in minutes. Included with this tower are four (4) heavy duty clamp-on outriggers to widen the base of scaffold for stability at the 12 ft. height. Additional scaffold may be purchased and stacked onto this unit to provide up to a maximum height of 18 ft. when used with the proper outriggers and guardrail set.