Wood Retaining Wall The beautiful color of this cedar wood retaining wall by @tedmade.woodwork shows off the plants on both sides. A wood retaining wall is a more cost-effective choice than stone or ...

While wood is inexpensive and metal and natural stone are very expensive, many homeowners choose a middle option: concrete retaining wall blocks. Concrete blocks don't decompose and they aren't ...

At least, it used to. If the crew at ETH is successful, building stone retaining walls will soon become a “set it and forget it” task for robots to complete. Robots like their HEAP excavator.