Building a raised bed with landscaping timbers has many advantages for you and your garden. It makes it easier for plants to grow because the bed can be filled with richer soil than what is available naturally. Also, if you have back pain or spinal injuries, you will have an easier time since you won’t have to bend down to do your gardening.
Step 1 - Set the Frame
Get two pieces of 4-foot long timber and two pieces 8-foot long landscaping timber. Set them down on the portion of the garden that you want to be elevated. Form a rectangle on the ground, enclosing the portion that will be in the elevated box.
Mark the inner and outer perimeter ground with a shovel or spade. Remove the landscaping timbers and you should now have two rectangular outlines on the ground, one inside the other. These are the lines for your trench.
Step 2 - Dig a Trench
Make a trench by digging around the marked perimeter that you made on the ground. Make a 6-inch deep rectangular trench for the walls of the raised bed. Place the collected dirt in a wheelbarrow. Once you’ve dug up the perimeter, fill it evenly with 2 inches of gravel.
Step 3 - Lay Down the Landscaping Timbers
Place the 4-foot and 8-foot timbers in the trench and line up the corners in such a way that they join together in a clockwise order. Get your drill and make 1/2-inch holes every 2 feet in the wood.
Get a rebar that is 1-foot long and use the sledgehammer to pound it through the hole into the soil. Keep pounding until the end is level with the timber.
Do this process to all of the holes and pound rebar into them. Place more 4- and 8-foot landscaping timbers on top of the timbers you laid down on the perimeter but now, set them around in a counter-clockwise order.
Place five timber screws on each side in order to join the two layers of timber together. Make sure that you make an even distribution of the screws.
Step 4 - Add Drainage Holes
Get your drill and make some holes on the sides of the landscaping timber that you just laid down. The holes should be approximately 1/2-inch wide. Drill just one hole on the side of the width of the frame and two holes on the side of the length of the frame.
Step 5 - Finish
Place the last pieces of timber on top of the ones you’ve already laid down. Lay these in a clockwise order once again. Secure them by driving timber screws again so they are properly joined to the existing landscaping timbers.