I want to build a three-foot-high retaining wall behind my house out of pressure-treated wood. Thoughts?—Shawn B., Sioux City, Iowa Go ahead, but do your homework. First, call 811 before you dig. The ...

Highlights The typical cost range to build a railroad tie retaining wall falls between $2,000 and $2,400, while the national average cost is $2,200. The main factors that affect the total cost of this ...

Q: I have two deteriorating (but still standing) retaining walls made of timber and two even worse, leaning cinder-block retaining walls. I was planning to replace them all eventually, but to spread ...