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Outside 90 Degree Corners

Right Corner Top

When building a wall with an Outside 90 Degree Corner, it is recommended that construction start at the corner and work away from this point in both directions. Unless one of the walls going away from the 90° corner runs into another

Top Course

Even Course

corner or abutment, no block should need

Full Corner Block

to be cut. One standard corner block will be used at the corner on each course, alternating the long and short returns. The corner blocks should

Full Corner Block

Odd Course

be glued at the corner where they overlap with a high-

quality, exterior-grade concrete adhesive.

Inside 90 Degree Corners

When building a wall with an Inside 90 Degree Corner, it is recommended that once the base row is laid to the location of the inside corner, subsequent courses should begin at the corner and be laid outward from there. This avoids unnecessary trimming due to the built-in 1” setback. On taller walls, the “running bond joint” will slide off center by 2” for every other row. This does not affect the structural integrity of the wall. One standard corner block will be used at the corner on each row of the wall. The corner blocks will overlap each other at the corner, coming together in an alternating long/short fashion. The corner blocks should be glued at the corner where they overlap with a

concrete adhesive. Remove part of front face of top unit

Top Course

Even Course

Corner Units

Bottom (odd) Course

Page 21

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