portable loading dock stairs

Most listings show construction from 6063 aluminum alloy with surface treatments such as sandblasting or other corrosion-resistant finishes to improve load-bearing performance, scratch resistance, and corrosion resistance.

Capacities in the listings typically range from about 350 pounds up to 500 pounds.

Removable ladders usually detach using a buckle or snap-ring system so you can lift them out. Flip-up ladders are manually lifted out of the water and secured in the stowed position with a stop pin or a stretch cord.

Adjustability varies by model. Some listings show adjustable height ranges (for example, about 43–51 inches or 30–38 inches), while other models list fixed minimum/maximum heights as specified by the manufacturer.

Listings commonly show 3 to 6 steps, with typical step spacing around 12 inches.

Tread widths in the listings generally range from about 13.8 inches up to 22 inches. Step depth is commonly around 4 inches, with some listings showing depths near 3.1 inches.

The listings describe use on docks and for swimming pools, as well as for boarding boats, pontoons, ships, and other marine boarding situations.

Most listings note nonslip pedals or textured step surfaces; a few specifically mention a nonslip rubber mat as an added feature.