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A tiered planter box enhances your garden aesthetic with the use of lines, space, and form. Buying a tiered planter box can cost from $50 to $100, but do not worry because you can make a tiered plant box of your own, which is lesser at cost. One can do this functional yet simple DIY 3 tier planter box in one day. For a good-looking result, carefully follow the instructions below.
1. Prepare what you need
Start with an organized list to avoid going back and forth to find or buy what you forgot. It can also save time.
3 pcs of 1×3 lumber – 8 ft
3 pcs of 1×6 lumber – 8 ft
wood putty
wood stain
For cutting, drilling, and attaching:
2 1/2 inch screws
1 1/4 inch screws
Hammer
Tape measure
Framing square
Level
Miter saw
Drill machinery
Screwdriver
120 grit sandpaper
Wood glue
Protective wears
Safety Gloves
Safety Glasses
2. Cut the planks
Whether you are cutting your wood or customizing it from a store, these are the measurements that you’ll be needing in starting with your DIY 3 tier planter box’s wood.
For the planter box, you need to have three sets of these cuts:
2 pcs of 1×6 lumber – 24″ long (front and back)
2 pieces – 5 1/2″ long (side)
1 piece – 22 1/2″ long (base)
For the legs:
2 pcs of 1×3 lumber – 42″ long (for diagonal positioning)
2 pieces – 36″ long (for upright positioning)
For the support:
2 pcs of 1×3 lumber – 15 1/4″ long (horizontal support)
1 piece – 38 1/2″ long (diagonal support for the back)
A circular saw is advisable for cutting the wood to have exact cuts.
3. Smooth the edges
Smoothen the cut edges with a sander/ sandpaper. Please don’t overdo it to avoid gaps for the planter box.
4. Build the planter box
Do not start with the legs and the support. Those two are to be adjusted according to the three-tiered planter box, not the other way around.
- To get the rectangular form, attach the sides to the front and back faces by drilling pilot holes through the side component. Afterward, insert the one ¼” screws into the front and back faces.
- Attach the bottom by drilling holes through the frame, and again, insert one ¼” screws. You can add three holes in the bottom for water and aeration.
- Add drainage holes in the bottom through drilling. You don’t want your DIY 3 tier planter to hinder your soil’s aeration and drainage system.
5. Build the legs
- Get the 42” long for the diagonal leg. Cut the bottom at 60 degrees.
- Cut the upper left corner of the wood in ½” and ¾” at the top. To go for an upright vertical cut, starting from tip made, cut it downward at two ¾”.
Slant the other leg like how the left stroke/line in the A logo of the Avengers is slanted.
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6. Attach the planter box to the legs
The measurements might look overwhelming right now, but as you gather your lumber and nails, it’s a lot easier.
- To join the planter and the legs, drill a hole going through both parts and insert the one ¼” nails. Leave a 13 and ¾” gap between the planter boxes, allowing the lowermost planter box to have a seven and ½” space from the ground.
- Add wood glue to ensure the bond between the planter and legs.
7. Attach the side and back support
The back support helps a lot in withstanding weight and wind.
- Attach the 15 and ¼” long pieces of wood to the sides, six and ½” from the ground. Do it on the other side.
- Join the 38 and ½” diagonally at the back using brad nails. Cut both sides at 45 degrees.
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8. Finish the touches of your DIY 3 tier planter.
- To fill in the drilled holes, apply the wood putty.
- Smooth the surface with sandpaper.
- Apply wood stain. (If preferred)
Additional options and tips:
- You can differentiate your planter box’s shape if you want a different look. Others do a 180-degree trapezoid form for their DIY 3 tier planter. If you are not confident with the security of the bond, put other brad nails.
- Before attaching the diagonal leg, lay flat the rails to nail the planter box to the upright leg.
- Add fabric in the planter box before putting the soil. It will keep the soil from falling.
- Use wood with long lifespans such as cedar and redwood. You can also use pressure-treated wood as it lasts for 10-15 years.
- If you want to add color to your DIY 3 tier planter, choose a plant-safe wood color paint or wood stain.
- Ensure your planks’ measurement as you do not want to have unnecessary cuts or gaps.
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