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PyZique Walls
Preparation and Installation Guide Building Retaining Walls
"A curved wall is stronger than a straight one."
Compact & Level your footing material. If you are building on unlevel areas you can prepare step downs in increments of the 4" thickness of the PyZique stone.

Excavate a trench approximately
14 inches wide. Follow this table for
trench depth and thickness of the compactable rock foundation.
Wall Height Trench Depth Compactable Rock
3" 6" 3"
2" 4" 2"
1" 2" 1"

The First Course
Place the first layer of PyZique stones smooth side down on the prepared foundation. Use a carpenter's level in all directions and use a string line to verify straightness. Serpentine walls may be built too. Be certain the base course is level and stones lay flat. For micro leveling and to help the stones lay flat, keep a bag of sand handy and use small handfuls to level and stabilize the first course.

Setback Alignment
Set the center side alignment groove directly above the backmost 5/8" set back groove of the stones in the next lower layer. See stones at top of this page. This alignment is all that is required for each successive layer of stones. Mat material can be used to filter soil fines that may migrate into your clean granular fill. A flexible drain tube is a competent way to assure drainage from behind your wall. As successive layers are set, stagger the face seams of the stones for interlocking wall strength.

The normal bottom of each PyZique stone is smooth. Place the bottom up for your cap row. To avoid vandalism, you may want to use a paver grade glue to secure the cap layer to the layer below it. Place a dab of glue on each of the stones that the cap layer's stones will set on. Stones must be clean and dry for adhesive to bond.

Making a Square Corner

PyZique can make square corners by splitting one stone from front to back through the middle. Use paver adhesive at each "X". Alternate Row "A" with Row "B" allowing for setback in both directions.

Tiered Retaining Walls ~ (The X Factor)
The X Factor. It is important that the upper wall does not become a load on the lower wall. Set the upper wall's footing back (x feet) from the top of the next lower wall. The distance should be equal to or greater than the height (x feet) of the lower wall.

Tree Rings & Raised Flower Beds
These projects are built on a crushed rock footing like retaining walls. Also, the base row must be level as with a retaining wall but with these applications you will probably want to build straight up. The center side alignment groove should be aligned upon the center or zero set back groove of the layer below. Fourteen PyZique stones make a complete circle with an inside diameter of 32 inches. Larger diameters or various shapes may be made by using more stones and leaving an opening between the rear of the stones.

Tri-Face Option
You may wish to take advantage of PyZique's tri-face option.
Simply place a stone chisel in the corner tri-face groove of the face that will be exposed.
One hit with a hammer on the chisel at each corner will give the tri-face option.
Please Note:
Retaining Walls are not built straight up unless expensive geo-grid materials and structural deadmen are utilized.
Walls must have a horizontal force equal to or greater than the horizontal force of the soil being retained,
otherwise the wall will fail.

PyZique is designed with a 5/8" set back for each row
(5/8" horizontal tilt per 4" of wall height) to impose a horizontal force
against the retained soil.

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