Installation Guide

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If project will be on top of existing paver or concrete base, consider the weight that is being
added and adequacy of existing base to bear the load. Proceed to step 3a or 3b for first
course layout.
Seat/Freestanding Wall Installation (continued)
1. Stake out wall and create trench – Mark location of the wall from the back of blocks. Dig a trench for the
leveling pad.
a. Straight wall trench – 17 inches wide x 8 inches deep.
b. Curved wall trench – 20 inches wide x 8 inches deep.
2. Leveling pad – Add a 2-inch layer of base material in the bottom of the trench; rake out and firmly compact.
Repeat as needed for finished compacted base depth of 4 inches. Use a carpenter’s level to level base
material along the trench; check the level every few feet.
3. First/Base course – For buried course installation, place the face of the block about 4 inches from trench
side. Level the first block, front-to-back and side-to-side; lay subsequent blocks in the same manner.
a. Straight wall nested layout – For layout drawings see page 21. With textured surfaces facing
out place a full block and a split L-shaped piece at project’s end as shown in course A. Level block
front-to-back and side-to-side. Lay the next block by rotating 180-degrees and interlock tails
with the first block. Continue to level block and repeat to the end of the course.
Important tip for 90-degree corners – Make sure textured surfaces are facing out and continue to
build straight wall course.
b. Curved wall tail-to-tail layout – For layout drawings see page 21. Starting the wall next to structure
such as a column, build the outside radius, first with textured surfaces facing out. Level block
front-to-back and side-to-side. End row by placing wedge piece before starting inside radius.
Proceed with inside radius, placing blocks with sides and tails touching the outside radius row.
Fill any open spaces at the wall end closest to structure with pieces split to fit. Glue all split pieces
in place with exterior-grade concrete adhesive.
Important tip for curved walls – If including column(s) in design, build one column first, then wall,
and end with second column if desired.
4. Subsequent courses – Clean any debris off the previous course. Place the blocks as shown in layouts,
alternating courses until project’s height is reached. Glue the top two courses with an exterior-grade
concrete adhesive as shown on page 17. Backfill trench with on-site soil and compact.
Important tip for curved walls – Begin all subsequent courses at the wall end as shown on course B.
5. Capping the wall – Choose a cap option for your wall see page 16. Clean debris off the top course. Use
an exterior-grade concrete adhesive on block to secure caps in place. Have score line facing down on
the top course if using pavers as accent detail.