So, if you're planning to build a 4-foot retaining wall, convert 4 feet to inches (4 times 12) to get 48 inches. Then, divide 48 inches by 8, and you'll arrive at a 6-inch depth.

LISBON — The town council agreed Tuesday to spend more than $3,000 from the downtown tax increment financing account to install a fence atop the retaining wall at the Booker Street parking lot.

Dan Snow suggested the 1-2-3 rule for retaining walls. These numbers refer to the proportions of the wall: top width to bottom width to height. A 3-foot tall wall should be roughly 2 feet wide at the ...

Frost is not an issue, as it rarely drops below 32 F at my friend’s house. If I were to build his wall at my home in New Hampshire, within a few years the deep frost would start to push over the ...