How to Build a Raised Planter Box with Legs

Transform your outdoor space into a lush oasis with a stylish and functional raised planter box with legs. Not only does it add a touch of elegance to your garden, but it also provides numerous benefits such as improved drainage, easier access to plants, and better soil management. Let's dive into a step-by-step guide on how to build this beautiful addition to your garden.

Before we begin, ensure you have all the necessary tools and materials. You'll need a circular saw, drill, tape measure, pencil, safety glasses, gloves, and ear protection. For materials, gather 2x12 pressure-treated lumber, 4x4 posts, 2.5-inch and 1.5-inch screws, exterior wood glue, and landscape fabric.

Designing Your Planter Box

First, decide on the size and shape of your planter box. A common size is 4 feet by 8 feet, which is large enough to grow a variety of plants but small enough to manage easily. For this guide, we'll use these dimensions.

Sketch a simple design with the following measurements: two 4-foot lengths for the long sides, two 8-foot lengths for the short sides, and four 4x4 posts cut to 28 inches tall for the legs. You'll also need to cut four 2x12 pieces at 12 inches for the supports that connect the legs.

Cutting the Lumber

Using your circular saw, cut the 2x12 lumber according to your design. Remember to wear safety gear, including gloves, glasses, and ear protection. Always cut away from your body and ensure the saw is securely clamped or held in place.

For the 4x4 posts, mark 28 inches from the bottom, then use a saw to cut along the line. These will serve as the legs of your planter box.

Assembling the Box Frame

Begin by assembling the box frame. Apply exterior wood glue along the edges where the boards will meet. Then, using your drill and 2.5-inch screws, attach the long sides to the short sides, creating a rectangular frame.

To ensure the frame is square, measure diagonally from corner to corner. If the measurements are equal, your frame is square. If not, adjust the frame until the diagonals are equal.

Attaching the Legs

Now that your box frame is assembled, it's time to attach the legs. First, apply wood glue to the ends of the 2x12 supports. Then, using 1.5-inch screws, attach these supports to the inside of the frame, about 6 inches from the corners.

Next, stand the frame upright and position the 4x4 posts on the supports. Ensure they're plumb (vertical) using a level, then attach them with 2.5-inch screws. Drill pilot holes first to prevent the wood from splitting.

Adding the Bottom Slats

To keep the soil in place, you'll need to add bottom slats. Cut four 2x12 pieces to fit inside the frame, then attach them with 1.5-inch screws, spacing them evenly apart.

Before adding soil, line the bottom of the planter box with landscape fabric. This will allow water to drain while preventing soil from washing out.

Finishing Touches

Your raised planter box with legs is now ready for planting! Fill the box with a mix of high-quality topsoil, compost, and potting soil. Then, plant your favorite flowers, vegetables, or herbs.

To protect your planter box from rot and pests, consider applying a coat of exterior sealant. This will also give it a nice finished look.

Stand back and admire your handiwork. Your new raised planter box with legs not only adds charm to your garden but also provides a perfect environment for your plants to thrive. Happy gardening!