DIY Stone Stairs

Calculate the number steps needed to cover the slope. The standard run ideally should be 11 inches, and the rise should be 7 inches. A shorter step run will necessitate a higher rise. A longer run requires shorter rises.

Hammer in stakes on either side of the area where you intend to build the stairs. Place a stake on both sides where each riser will be installed. Tie a line between each stake to guide you when you install the risers.

Excavate the stair area with a shovel. Copy the previously determined measurements for each riser onto two-by-fours. Use a circular saw to cut the risers to size. Position the two-by-four risers into place, using the stake lines as a guide. Position two-by-fours on either side of the excavated area to enclose it.

Prepare concrete, according to the manufacturer’s instructions, in a wheelbarrow. Pour a thin layer of concrete into the excavated area to create a mold for your stones. Smooth out the concrete with the back of a trowel. Allow the concrete to dry, based on the manufacturer’s recommended time frame.

Prepare mortar mix in a bucket, according to the manufacturer’s instructions. Use a trowel to spread the mortar on top of the concrete in a 1-inch layer.

Starting at the bottom rise and run, set the stones on top of the wet mortar in the desired arrangement. Tap each stone into place with a rubber mallet. Draw a line over the end stones, if they extend over the stairs, and score the line with a chisel and hammer. Strike the scored line with a sledgehammer to break the end stones so they fit correctly. Repeat this technique until you reach the top of the stairs.

Use the trowel to pack in mortar between any gaps within the stone. Wipe off any excess mortar with a damp cloth. Allow the mortar to dry, based on the manufacturer’s recommended time.