Single-Step 12" x 36" threshold ramp designed for doorways, raised thresholds, and a variety of surface types. Each ramp includes adjustable legs which provide a 1. 25" to 2. 25" height range, an ideal way to match slightly uneven surfaces. The free-standing adjustable threshold ramp is designed for outdoor use and may be used indoors. Foot pads (not included) are highly recommended to protect indoor flooring. Features an extruded tread surface for added traction. Maximum 600 lb. capacity. Made with all-aluminum construction for years of durable, rust-free use. Single-Step 12" x 36" Adjustable Aluminum Threshold Ramp * Adjustable legs for use with a variety of surface types, height range from 1.25" to 2.25" * Single step rise with a maximum 600 lb. capacity * Free-standing ramp designed for single step doorways and raised thresholds * Outdoor use - Foot pads are highly recommended to protect flooring if used indoors * Aluminum construction with an extruded tread surface