By adding special accessories, standard Perry components adapt to very specialized applications. All brackets attach to the basic unit with the Positive Engagement Lock. Four outriggers are required. Combine two Units Join two units to provide 33 sq. Can be stacked a maximum of three units high.
Outriggers are unnecessary.
Use on Stairs Independent adjustment of each end permits use on stairways. Over Objects Absence of lower cross bracing allows easy clearance over obstructions.