Ribs for an elevating platform, the ribs designed and configured to insert through a slot in the sidewall of the elevating platform. The ribs are composed of T-shaped and/or L-shaped portions. Configurations include a T-shaped rib that inserts through the slot; a combination T-shaped and L-shaped rib wherein the T-shaped component inserts through the slot and the L-shaped component is attached on the exterior of the platform, and a double-L-shaped rib, wherein one of the L-shaped components inserts through the slot and the other L-shaped component is attached to it on the exterior of the platform.