Column: Easy, affordable raised bed

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You can build a raised growing bed in an afternoon using these easy instructions.

Building materials:

• Eight 30-inch metal posts (cut from chain-link fenceposts)

• 32 feet of 1 .5-foot-wide corrugated tin (cut from 3-foot-wide pieces or purchased precut)

• 64 feet of 1-by-3-inch lumber cut from 1-by-6-inch planks (pressure treated or composite, scubas Trex)

• 1/4 pound of 2-inch metal screws

• 1/8 pound 2-inch galvanized deck screws

• 2 yards of topsoil


Easy to build

Step 1: Select a place that is flat and receives at least four to six hours of sun. Rake the area clear of debris.

Step 2: Measure out the dimensions of the bed, and mark the four corners with stakes. From the corners, measure both diagonal distances across bed. If these distances are equal, the bed will be a true rectangle.

Step 3: Tie some string between the stakes to ensure that the posts are aligned and to see how large the bed will be. A 12-by- 4-foot bed is big enough to grow lots of plants but still allows you to reach the middle.

Step 4: Cut the metal posts so they will be at least a foot or so underground. I made the bed 1 1/2 feet deep, so the total post length was 2 1/2 feet. Vary the height depending on who will use the bed. Make it slightly taller for gardeners with back problems.

Step 5: Drive the corner posts into the ground with a sledgehammer. Put a 2-inch threaded bolt on top of the posts to create a solid surface for driving them into the soil. You may want to use a post-hole digger to dig the hole and use concrete to ensure the posts remain in place. Hammer two more posts 4 feet apart on both of the long sides to provide support for the tin.

Step 6: Using 2-inch metal screws, attach the corrugated tin to the outside of the posts, flush with the top of each one. If the metal sheets are nor precut, use tin snips to cut them in half. Be sure to wear heavy gloves when working with corrugated tin, the edges are sharp.

Step 7: Split the wood planks (composite or pressure treated) in half lengthwise with a circular saw so they are 3 inches wide and fit the dimensions of the bed. Clamp the wood strips flush onto the outside edges of the corrugated tin, and screw them to the posts with 2-inch metal screws.

Step 8: Put a wood cap on the raised bed. Cut the wood or composite lumber to equal the length and width of your bed, and then cut the ends at a 45-degree angle. This allows the ends to butt up against one another at a diagonal, forming a strong joint. Screw the wood cap onto the top of the wood strips on the side of the bed using 2-inch deck screws.

Step 9: Fill the bed with topsoil, and then add your favorite plants. Enjoy.

(Source: Southern Living)

Susan Woody has been a home and garden writer for more than 20 years and is a master gardener.

By |May 25th, 2017|

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