What is the best way to secure landscape timbers when building raised beds? The timbers are 3 1/2 inches thick.

March 02, 2008 Print Friendly and PDF
While you could use 6-inch-long nails, a better choice would be to drill a 3/8-inch hole through the timbers where they intersect and drive a piece of concrete reinforcing bar (rebar) through them and into the ground. All builder's supply stores sell both the rebar and an extension that you can use to extend the length of the drill bit.

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.