How to Guide
©2015 Keystone Retaining Wall Systems LLC
Keystone Retaining Wall Systems LLC • A Contech Company
4444 West 78th Street • Minneapolis, MN 55435
(952) 897-1040 • www.keystonewalls.com
LANDSCAPE WALL | INSIGNIA
®
WALL
WALL ESTIMATING & DETAILS
Wall
Height
Wall Length (measured at face)
5' 10' 15' 20' 25' 30'
1 course - 4" 5 10 15 20 25 30
2 courses - 8" 10 20 30 40 50 60
3 courses - 12" 15 30 45 60 75 90
4 courses - 16" 20 40 60 80 100 120
5 courses - 20" 25 50 75 100 125 150
6 courses - 24" 30 60 90 120 150 180
Cap course - 2.5" 5 10 15 20 25 30
Estimate the number of Insignia
®
wall units you will need.
* Please Note:
Maximum wall height not to exceed 2' (610mm). This
chart is based on site conditions which include a level
grade, granular soil and no surcharge.
Keystone Insignia wall cap unit
Filter fabric
option
Backfill materials
Finished Grade
Keystone Insignia
wall unit
Leveling pad (3/8”[10mm]
to 3/4”[19mm] crushed
rock or stone base material)
Approximate limits
of excavation
Design height
Keystone Insignia wall cap unit
2-Piece cut cap at wall step
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Unit drainage (3/8”[10mm]
to 3/4”[19mm] crushed rock
or stone drainage material)
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Keystone Insignia wall
step block unit
Minimum radius = 4 ft.(1.2m)
Foundation soil
Retained soil
(19mm)
(102mm)
(279mm)
(381mm)
Keystone Insignia wall cap unit
Filter fabric
option
Backfill materials
Finished Grade
Keystone Insignia
wall unit
Leveling pad (3/8”[10mm]
to 3/4”[19mm] crushed
rock or stone base material)
Approximate limits
of excavation
Design height
Keystone Insignia wall cap unit
2-Piece cut cap at wall step
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Unit drainage (3/8”[10mm]
to 3/4”[19mm] crushed rock
or stone drainage material)
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Keystone Insignia wall
step block unit
Minimum radius = 4 ft.(1.2m)
Foundation soil
Retained soil
(19mm)
(102mm)
(279mm)
(381mm)
Keystone Insignia wall cap unit
Filter fabric
option
Backfill materials
Finished Grade
Keystone Insignia
wall unit
Leveling pad (3/8”[10mm]
to 3/4”[19mm] crushed
rock or stone base material)
Approximate limits
of excavation
Design height
Keystone Insignia wall cap unit
2-Piece cut cap at wall step
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Unit drainage (3/8”[10mm]
to 3/4”[19mm] crushed rock
or stone drainage material)
Keystone Insignia wall unit
Keystone Insignia wall cap unit
Keystone Insignia wall
step block unit
Minimum radius = 4 ft.(1.2m)
Foundation soil
Retained soil
(19mm)
(102mm)
(279mm)
(381mm)