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To complete your Anchor Stone™ project, you will need the following hand tools: shovel, tape measure, hammer, chisel, carpenter's level, stakes, string line, garden hose, safety glasses, gloves, pencil, square. With the Windsor Stone, you may also need a compactor and a circular cut-off saw with a masonry blade.
1. Begin your project by staking out the line of the border you are making. For curved sections, use your garden hose to layout the contour. Dig a trench along this line. If you are going to use one, two, or three courses of block, make the trench about 3" deep and about 12" wide. If you are going to use four courses of block, make the trench about 5" deep and about 18" wide. Firmly compact and level the soil in the bottom of the trench. Place 1 " of compacted clean granular fill in the bottom of the trench.
2. Position the Anchor Border Stone units side by side on the prepared base and level in both directions using your carpenter's level. For best results, use your hammer and chisel to remove the rear lips from all Border Stones used for the base course. Continue assembling additional courses by placing units in a staggered relationship to the course beneath (running bond), pulling each unit forward until secure.
3. Backfill each course with clean granular fill. As a general rule, the backfill soil lone should extend as far behind the wall as the wall is high. (One foot back for a one foot high wall). Compact this soil backfill lone. Organic soil or clay type soil is not recommended for backfill material. We recommend using 3/4" free draining aggregate without fines.
4. You may need partial blocks. To split a block, use a hammer and chisel to score the block on all sides. Pound the chisel on the score line until the block splits. If the block does not split easily, you may need to use a circular cut-off saw with a masonry blade. Read and understand the operating manual before using a saw. Always wear eye protection when splitting blocks.
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