Count the treads your bank needs: vertical drop ÷ 7 in or slope ÷ 13 in. Rise per tread, code checks, and structure by run length.
The Alummikon All Terrain Stair adjusts to steep, rocky, hard-to-permit and hard-to-reach waterfront banks. No concrete, no welding, hand-tool assembly.
ADA ramp and marine gangway rules in plain English: 1:12 slope, 30 in rise per run, landings, handrails, edge protection and the boat slip exceptions.
Aluminum stairs built for steep, uneven and eroding banks. Adjustable treads, 12-inch run, 30-degree slope, 4 feet wide, removable without heavy equipment.