09:07PM | 08/30/03
Member Since: 08/30/03
1 lifetime posts
Where do I start? My dh built a retaining wall with Allen Block Stones. The wall is 3 stones high plus a cap stone. My dh compacted gravel in the base and behind the wall. Then we added soil as we are using it as a planter. A drainage tube runs along the length of the wall (38'long).

I just found out that my dh never used any landscape fabric (not mentioned its use on the Allen Block website) between the gravel and the soil. Should I put him thru the agony of removing the soil and gravel, lay down the landscape fabric and then load in the gravel, cover gravel and then put in the soil? What kind of disaster could result from my dh's ignorance?

Also, I noticed on the Allen Block website that a reinforcement grid is needed for every 2 blocks in height. We are 3 blocks. Home Depot told us we didn't need it. Allen Block suggests we do. Is this a cash cow for Allen Block? Is it really necessary? Each stone is not quite 1' high, and the cap stone is about 3".


02:16AM | 09/02/03
Member Since: 01/14/03
264 lifetime posts
The landscape fabric between the gravel backfill and the native soil and loam serves to keep the fine particles in the native soil and loam from migrating into the gravel when rainwater infiltrates into the ground on its way to the drain pipe. Without the fabric, eventually the gravel may, keyword here is "may", become clogged with these fine particles and slow the drainage. In an application like you describe, I'm not sure that I'd go to the bother of tearing everything up now that it's complete to add the fabric. If you wall was twice the height, then I'd suggest fixing it.

As to the geogrid reinforcement fabric, with a wall only three blocks high, unless the load behind the wall is a hill that rises many feet at an extreme angle, again, I wouldn't worry. Installing the fabric requires that you excavate back into the slope behind the wall for a distance prescribed by the block manufacturer and then laying the fabric and backfilling over it. That can require removing a significant part of the slope behind the wall. If the land behind your wall is fairly level, or even just slopes gently, don't bother.

[This message has been edited by treebeard (edited September 02, 2003).]



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

All bookworms need a good bookmark that inspires them to keep reading. To make this colorful bookmark, cut a rectangular p... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon