Installation Instructions

RETAINING WALLS

Steps Built in Front of the Wall

1st Course

2nd Course

Steps Built into the Wall

With a Radius Turn

Before excavation can begin, the

rise and run of the stair treads

must be determined and codes

must be met. Stairs can be built

by stacking two Clifton units

and a Step/Cap on top of each

other for more stability. A more

economical option is stacking

one Clifton and a Step/Cap.

Stairs can be built in front of the

wall or into the wall with radius

turns or outside 90º corners (see

illustrations below).

The depth of the excavation will depend on the height required for the risers and if you are stacking

two Clifton units or one. Install and compact a 6" base as the footing. Break o the rear lip of each

block and place them onto the base across the width of the stair opening. Level each block front

to back and side to side. Fill the open cores of the units and the spaces between them with 3/4"

to 1" processed gravel and sweep the units clean. Construct the next riser assembly by placing

and compacting another 6" thick gravel footing behind the rst course of units. Now place a row

of Clifton units onto the base and position them directly behind the units in front. Install successive

risers in the same manner for the number of stairs needed. The nal step is to adhere the Step/Caps

with construction adhesive and allow at least 24 hours to dry.

2nd Course

1st Course

BUILDING STAIRS WITH DENVER OR CLIFTON RISERS (cont.)