Stone retaining wall construction recommendations: How wide should a retaining wall trench be? The trench you are going to build your retaining wall in should be wide, deep, and level. Size the trench so there’s enough room for the block and at least 8 inches of space behind it. Excavate deep enough to completely bury at least one full course, including space for 6 to 8 inches of base material. Establish a level trench to ensure an even layer of base material. That will help prevent the wall from tipping after freeze/thaw cycles. Our experts use a laser level and a story pole to determine the depth of the trench.
By using NFC you are basically increasing the depth of your retaining wall. Most masonry blocks would be an average depth of 200-250mm, by using NFC you are increasing that depth of your solid masonry block from 200mm up to 500mm (Infill depth) or more depending on the height of your wall. It is always recommended that every third or fourth block should have part of the back edge removed. This would give a far better adhesion tying the NFC infill layer and the NFC core filled blocks creating a far stronger structure.
Colorado Retaining Wall specializes in the building and repair of retaining walls. Whether the wall is for a backyard or driveway of a residence or a commercial Shopping Center, we design and build large block walls for all Earth retention requirements. We have the ability to fortify the wall with shotcrete or soil nails which would include helical tie-backs or micropiles. Nearly every wall we build requires engineering and we have deep relationships with engineers that work hand-in-hand with our foremen regardless of the size of project. Please read our reviews and look and our photo gallery. Find extra info at Best Retaining Walls Colorado.
Good drainage is essential for any retaining wall. Drainage is provided by filling coarse gravel behind the wall and by building weep holes into the wall. Make weep holes by inserting short lengths of 2-inch plastic pipe or 3-inch drain tile in the forms when they are built. The first row should be 2 inches to 4 inches above ground level. If the wall is higher than 4 feet, place a second row of weep holes 3 inches above the first.
Shorter retaining walls, however, can be constructed by enthusiastic do-it-yourselfers equipped with some basic construction knowledge. Does that sound like you? If you’re looking to get your hands dirty and enhance your landscape with a retaining wall, these guidelines for building a retaining wall will help you get off to a good start. A retaining wall’s effect on the natural flow of water could impact your neighbors, so some communities require homeowners to obtain a permit before construction commences. You may have to submit plans for your wall and schedule a property inspection to ensure that building a retaining wall won’t create drainage problems.