Installation Guide

INSTALLATION INSTRUCTIONS
At wall location, dig shallow trench for
wall base (see Typical Legacy Stone
Section). Place granular leveling pad
material. Compact and level the base pad.
Place and level the first course units. If
grade changes along base of wall, create
stepped leveling pad as required. Always
start wall at lowest elevation, working to
highest. Complete base course before
proceeding with additional courses.
Backfill first course units with clean
granular fill material (i.e. crushed
stone/gravel). DO NOT USE PEA
GRAVEL! Compact with hand tamper
or appropriate mechanical compactor.
Backfill and compact behind each course
before installing additional courses.
Starting at straight wall area, place units
centered over joint of units below to form
a running bond pattern. Build through
curves in similar manner.
Capping: If using a cored Legacy unit,
complete your wall with the appropriate
cap* unit. Use exterior grade construction
adhesive on the top surface of the last
course before applying cap units. Backfill
and compact to finish grade.
LANDSCAPE WALL | LEGACY HEWNSTONE
™
Use clean granular backfill such as gravel or crushed stone for drainage and to
prevent soil from leaching through the wall. A commercial filter fabric (stocked by
most garden supply stores) may be used when existing site soils are used for backfill.
Curves as small as 3' in radius can
be built with Keystone Legacy
Stone. Convex & concave course
bonding will adjust sideways. If
stack bond occurs, remove rear
interlock lip as shown or cut
units accordingly to get back to
running bond.
Building Curves
Typical Legacy Stone Section
Remove Edges
To remove outside lugs or edges of retaining lip,
hold unit securely or place at angle on ground.
Strike the lug firmly with a hammer. Always wear
safety glasses to protect eyes from chips.
Minimum radius
at top of wall 3'
(264mm)
(38mm)
(152mm)
(152mm)
1. Prepare Wall Location
2. Place & Compact Backfill
3. Install Additional Courses
*Cap units vary by region. Contact your local Keystone representative for product availability.
©2017 Keystone Retaining Wall Systems LLC
Keystone Retaining Wall Systems LLC • A Contech Company
4444 West 78th Street • Minneapolis, MN 55435
[phone] • www.keystonewalls.com