Retaining Wall Corners

Adding Usable Space
Download Book  | 
Remove raised front lip from block

Remove raised front lip from block


Remove part of raised front lip from block

Remove part of raised front lip from block


Modify retaining wall blocks to make corner

Modify retaining wall blocks to make corner


Retaining Wall Corners

Corners typically require custom cutting of the blocks. Try to design curves instead. Angled retaining walls are not as stable as curved retaining walls, so whenever possible we recommend using curves instead of corners for a smooth flowing look to your landscape. If you need to use corners in your design, follow the instructions below:

Corners with AB or AB Europa Collection

If you are building with AB Fieldstone that uses recycled materials, go to Fieldstone installation


Inside Corners

Remove raised front lip of block

Remove raised front lip of block

AB Blocks are easily modified to build inside corners. To construct an inside corner, you will remove part of the raised lip on one block on each course.

Cutting Caps at corners

Cut caps at 45 degree angles

Build wall out from the corner

Place corner block and build out in both directions


Alternate the corner block direction

Alternate the corner block direction


Finish wall with capstones

Finish wall with capstones


Outside Corners

retaining wall block overlap

Start building at the corner to keep blocks in alignment

AB Corner Blocks are used to build outside 90° corners. To construct an outside corner, you will use an AB Corner Block on every course, alternating a right and left hand corner for each course.

Cutting Caps at corners

Cut caps at 45 degree angles



Altering AB Corner Blocks for Different Setbacks

AB Corner Blocks are manufactured with a 12° setback. With some minor adjustments, the blocks can be modified to work with any setback. To modify the block for a 6° setback, cut a notch on the short side of the block 0.75 in. (20 mm) deep.

cutting corner blocks

For a 6° setback, make a horizontal cut 0.75 in.(20 mm) deep

cutting corner blocks

Remove this piece after cut is made

Geogrid on Inside 90° Corners

Geogrid on Inside 90° Corners


Geogrid on Inside 90° Corners

Geogrid on Inside 90° Corners


Geogrid on Outside 90° Corners

Geogrid on Outside 90° Corners


Geogrid on Outside 90° Corners

Geogrid on Outside 90° Corners


Corners with Geogrid

Installing Geogrid on Inside 90° Corners

On inside corners additional geogrid is required to extend past the end of the retaining wall, 25% of the completed wall height (H/4).

Example

Finished retaining wall height is 12 ft. (3.7 m), divide by 4 which equals 3 ft. (0.9 m).The length the grid will need to extend past the corner is 3 ft. (0.9 m).

Installing Geogrid on Outside 90° Corners

Geogrid must always be installed with its strong direction perpendicular to the face of the retaining wall. To accomplish this with 90° outside corners:

AB Fieldstone Inside Corner

AB Fieldstone inside corner 1st course


AB Fieldstone Inside Corner

AB Fieldstone inside corner 2nd course


AB Fieldstone Outside Corner

Place corner block and build out in both directions (Step 1)


AB Fieldstone Outside Corner

AB Fieldstone outside corner (Step 2)


AB Fieldstone Outside Corner

AB Fieldstone outside corner (Step 3)


AB Fieldstone Outside Corner

AB Fieldstone outside corner (Step 4)


Corners with the AB Fieldstone Collection

Inside Corners

By alternating the block’s placement on each course of the retaining wall, an inside corner can be installed. The 824 facing units are ideal for this task, but 812 facing units are acceptable.

Remove lip from AB Fieldstone block

Remove lip from AB Fieldstone block

Outside Corners

AB Fieldstone retaining wall with corners

AB Fieldstone retaining wall with corners

Some of the AB Fieldstone facing units are manufactured with a textured side that compliments the facing unit. Besides being used as a standard block, these blocks can be used to create a corner. To create a left or right hand corner simply flip the facing unit as needed to change the direction.

Download Book  |