- Choosing Your Block
- Plan & Design
- Basic Install
- Finishing Your Wall
AB Junior Standard
Approximate Dimensions:
H: 6 in. (150 mm)
W: 7 5/8 in. (195 mm)
D: 7 5/8 in. (195 mm)
AB Junior Angles
Approximate Dimensions:
H: 6 in. (150 mm)
W: 7 5/8 in. (195 mm)
D: 7 5/8 in. (195 mm)
AB Junior Corners
Approximate Dimensions:
H: 6 in. (150 mm)
W: 11 3/8 in. (290 mm)
D: 7 5/8 in. (195 mm)
AB Junior Radius

The 12° setback creates a coning effect in curved walls. The tightest curve you can build has a 22 in. (560 mm) radius. With each course you add below, the radius will need to be 1.5 in. (40 mm) larger.
AB Junior will take your Garden Design wherever you want it to GO!

You can't find more potential, more possibilities, and more performance in a lightweight, easy to use block. AB Junior offers a world of design opportunity - and delivers professional results.
| AB Junior Maximum Wall Height |
|
| Sandy Soil | 30 in (760 mm) |
| Clay Soil | 24 in (610 mm) |
Sweeping curves, straight lines, or tight radiuses
By adjusting the position of the standard blocks, you can get the line and look you want.
| AB Junior Estimating Chart | |||||
| Wall Height (not including the Cap) |
Wall Length | ||||
| 5 ft (1.5 m) |
10 ft (3.0 m) |
15 ft (4.6 m) |
20 ft (6.1 m) |
25 ft (7.6 m) |
|
| 1 course 6 in. (150 mm) |
8 | 16 | 24 | 32 | 40 |
| 2 courses 12 in. (300 mm) |
16 | 32 | 48 | 64 | 80 |
| 3 courses 18 in. (460 mm) |
24 | 48 | 72 | 96 | 120 |
| 4 courses 24 in. (610 mm) |
32 | 64 | 96 | 128 | 160 |
| 5 courses 30 in. (760 mm) |
40 | 80 | 120 | 160 | 200 |
| Caps 3 5/8 in. (92 mm) |
Number of Caps Needed | ||||
| 4 | 8 | 12 | 16 | 20 | |
| Wall Rock | Amount of Wall Rock Needed | ||||
| 250 lbs (115 kg) |
450 lbs (205 kg) |
650 lbs (295 kg) |
900 lbs (410 kg) |
1100 lbs (500 kg) |
|
| Minimum Radius Chart | |
| Outside Radius | Blocks Needed For A Full Circle |
22 in. (560 mm) |
18 Blocks |
23.5 in. (600 mm) |
19 Blocks |
25 in. (635 mm) |
22 Blocks |
27 in. (685 mm) |
20 Blocks |
Layout and mark wall location
Install wall rock, level and compact
Backfill behind and in blocks, level and compact. Sweep top of blocks
Backfill behind and in blocks, level and compact. Sweep top of blocks
offset blocks
Prepare The Base
Use a garden hose to mark the location of the wall. Remove the sod and other surface material.
Place 4 in. (100 mm) of wall rock in the trench, level and compact thoroughly with a hand tamper. It is essential that the base is level at this point, as errors will multiply as each new row is added. On larger projects, consider using a mechanical plate compactor for best results.
Install The Block
Starting at the lowest point of the trench, begin placing the first course of block on the base with the raised front lip facing up and forward. Level each block from side to side and front to back, using the rubber mallet to make adjustments.
With the base course in place, carefully fill in and behind the blocks with wall rock, including a 4 - 6 in. (100 - 150 mm) space behind the block. Use on-site soil to fill in front of the block, and behind the wall rock to the same level as the top of the block. If installing pavers behind the block, be sure to prepare the paver base properly.
Compact thoroughly with a hand tamper or plate compactor. Good compaction is key to a quality job. Sweep the top of the blocks clean, and check again for level.
Place the next course of blocks with the seams offset from the course below by 2 - 4 in. (50 - 100 mm). This will make the wall stronger and lock each course more tightly in place. Backfill again with wall rock and appropriate soils to the top of the second row.
Finish the Wall
AB Junior has several options for finishing the top of the wall. Choose the one that's right for your design.
Fill in the top course with planting soil or mulch, and use the raised front lip as a finished edge. No caps required.
Use the AB Deluxe or AB Garden Cap for a clean, finished look. Some cutting will be required on curved walls. Glue the caps in place.
The AB Deluxe or AB Garden Cap provides a perfect corner with some slight on-site modifications.
The AB Capstone provides the extra depth needed for comfortable stair treads. Be sure to fasten securely with adhesive.
Step Downs
Walls with step downs can be easily finished using our AB Deluxe or AB Garden Cap.
Ending walls with Step Downs




