Outdoor steps are unique to every design we create. Sometimes with grading steps can be avoided and saving the expense. When a walk requires a step for safety, the width is typically 48”, although width can vary with the design. A molded concrete step built with individual units may range between $40-$80 per linear foot installed. Curving steps are more expensive to build than straight steps. Slab style steps are about twice the price to install due to a higher material cost.