Installation Guide

STRUCTURAL WALL | STONEGATE
®
COUNTRY MANOR
®
INSTALLATION INSTRUCTIONS
Remove all surface vegetation and debris.
Do not use this material as backfill. After
selecting the location and length of the wall,
excavate the base trench to the designed
width and depth (min. 20" w x 12" d)
[500mm x 300mm]. Start the leveling pad at
the lowest elevation along wall alignment.
Step up in 6" (150mm) increments with the
base as required at elevation changes in the
foundation. Level the prepared base with
6" (150mm) of well-compacted granular fill
(gravel, road base, or ½" to ¾" [10 - 20 mm]
crushed stone). Compact to 95% Standard
Proctor or greater. Do not use PEA GRAVEL
or SAND for leveling pad.
Once the pins have been installed,
provide ½"- ¾" (10 - 20mm) crushed
stone drainage fill behind the units to a
minimum depth of 12" (300mm). Fill open
spaces between units and open cavities/
cores with the same drainage material.
Proceed to place backfill in maximum 6"
(150mm) layers (lifts) and compact to 95%
Standard Proctor with the appropriate
compaction equipment. Do not use heavy
ride-on compaction equipment within
3' (1m) from back of wall. Do not use
jumping or ramming type compaction.
Place the first course of units end to
end (with front corners touching) on
the prepared base. The long groove
(receiving channel) on the unit should
be placed down and the three pin holes
should face up, as shown. Make sure each
unit is level - side to side and front to
back. Leveling the first course is critical
for accurate and acceptable results. For
alignment of straight walls, use a string
line aligned on the unit pin holes for
accuracy. Minimum embedment of base
course is 6" (152mm) below grade.
Place the next course of units over the
fiberglass pins, fitting the pins into the long
receiving channel recess of the units above
(Note: Some removal of debris in the pin
holes and channel may be necessary prior
to placement). Push the units toward the
face of the wall until they make full contact
with the pins. If pins do not connect with
channel but align in open core of upper
unit, place drainage fill in core to provide
unit interlock with pin. For near vertical
alignment, center the unit above over the
center placed pins below.
Place the shouldered fiberglass pins into
the holes of the Units (note: place one pin
only per each grouping of three holes).
Place pins in the middle hole for near
vertical alignment or the holes nearest the
embankment for a 9.5° +/- setback per
course. According to wall requirements
and design, the front pin hole (towards
the face of the wall) can be used
randomly to allow a forward projection of
a specific unit for accent and variation in
the wall appearance.
Continue all steps until ready to place
the wall cap. Clean off the last course
in preparation for the cap or coping to
finalize the wall. With units dry and clean,
use construction adhesive to secure the
caps to the units. Install the Stonegate
Country Manor 3" (75mm) capping unit,
architectural precast concrete or cut
stone as a coping element. Cap may
be flush or overhanging as required by
aesthetics and design.
1. Prepare Base Leveling Pad
2. Install the Base Course
3. Insert Fiberglass Pins
4. Install Fill & Compaction
5. Install Additional Courses
6. Capping the Wall
©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