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mini units
The Keystone Mini Unit is a great solution for smaller, non-critical applications. Easy to handle and easy to install, the 4” Mini Unit makes for an attractive retaining wall on its own or can be used as an accent when integrated with the 8" (200mm) high Standard or Compac units. The proportion and scale of the Mini Unit blends well with brick and ledge stone typically found in residential construction. The unit can also used as a 4” high cap unit to finish most wall installations. When used in this manner, the smooth top surface of the Mini Unit provides a project with the finished appearance of coping.
   

 

 

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Mini units mini section
  mini / cap units universal cap
height 4" 4"
width 18" 18 / 14"
depth 10-1/2"
10-1/2"
weight 45 lbs 48 lbs

Product size, weight, color and product
availability varies by location.
Please contact your local manufacture
for up to date product information.

 
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Use this guide for estimating the number of Keystone Mini units required.

WALL HEIGHT
WALL LENGTH (measured at wall face including curves)
5' 10' 15' 20' 25' 30'
4" (1 course) 3 7 10 13 17 20
8" (2 courses) 6 14 20 26 34 40
12" (3 courses) 9 21 30 39 51 60
16" (4 courses) 12 28 40 52 68 80
20" (5 courses) 15 35 50 65 85 100
24" (6 courses) 18 42 60 78 102 120

Notes:

  • Maximum wall height not to exceed 24".The maximum height is based on a level grade,
    total granular soil,wall built in setback position, and no surcharge. Contact your local Keystone
    representative for design options on wall heights exceeding 24" or supporting surcharges and
    backslope.
  • Change in color on chart denotes maximum wall height for vertical and setback positions.
  • Keystone recommends cap units as the top course and/or caps of freestanding walls
    secured with Keystone KapSeal™ adhesive.

 

 

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step 1 step 2 step 3
STEP ONE | Prepare the base leveling pad. Remove all surface vegetation and debris. More ... STEP TWO | Install the base course. Place the first course of units. More ... STEP THREE | Insert the fiberglass pins. Place the pins into the holes. More ...
step 4 step 5  
STEP FOUR | Install core fill & compaction. Provide crushed stone drainage fill. More ... STEP FIVE | Install additional courses. Place the next course of units over the pins. More ...  
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