HOW TO BUILD A COVERED SANDBOX

Scroll down to see a step-by-step overview of this project.

WHAT YOU’LL NEED:

  1. Two 1x8 boards at 47 1/2" 
  2. Two 1x8 boards at 46"

  3. Four 2x2 boards at 7 1/2"

  4. 12 1x4 boards at 47 1/2"

  5. Four 2x4 boards at 6 1/2" 

  6. Four 2x4 boards at 16 1/2"

  7. Four sets exterior grade hinges

  8. Four exterior grade handles 

  9. 1 1/4" screws

  10. 1 1/4" pocket hole screws

  11. Measuring Tape

  12. Square

  13. Pencil

  14. Safety Glasses

  15. Hearing Protection

  16. Drill

  17. Circular Saw or Compound Miter Saw

  18. Sander

  19. Countersink Drill Bit

  20. Play Sand

  21. Exterior Paint/Stain (optional)

BUILDING THE BOX

First up you will be creating the basic frame for the sandbox. Take the 46” long 1x8 boards and insetting them around 2 to 3 inches from the ends of the 47 ½” long 1x8 boards. Pre-drill your holes and secure the boards with the 1 ¼” screws. For added strength screw one of the 2x2x7 ½” into each of the corners of the frame driving screws from the outside in.

 

SEAT CONSTRUCTION

The top of the sand box is made to fold from a covering into a facing set of bench seats. This is done by allowing rows of planks to fold by the use of hinges. I find it very helpful to lay all 12 of the 47 ½” 1x4 planks across the top of the sandbox frame. This will give you an opportunity to get the plank spacing just where you want it, which should be around ½” between planks. With the planks laid out use your pencil to mark out the spacing.

Take two of the planks and starting at one end screw them into the frame with ½” (remember to use your marks) spacing in-between. Repeat for the opposite side.

Now take another two planks once again spaced ½” apart and screw the 2x4x6 ½” into them edge down. The 2x4x6 ½” will end up forming the armrest of the seats and need to be at least set 1” in from the edges of the planking. Repeat for the opposite side.

Placing the hinges is easiest by attaching them to the seat section first (remember the armrest should be facing down into the frame when doing this) and then to the stationary planks. When placing hinges remember to adjust your spacing BEFORE screwing the hinges into place, this will help make sure spacing is consistent and functional. Repeat for opposite side.

 

SEAT BACK

Making the seat backs follows much the same process as the rest of the seat. Take two planks spaced ½” apart and screw the 2x4x12 ½” into the planks face down. The 2x4”12 ½” should be aligned to be even with the first plank at its top. Don’t worry about the overhang as it serves as a support in the seats upright position. Repeat for opposite side.

The hinges for this section of seating will be secured from the underside to allow for the seats folding action. As before make sure to check your spacing before attaching the hinges. The handles for the seats can be mounted where ever you find most convenient.

 

FINISHING

When installing your sand box the best option is to remove the grass in the area of your sand box and level out the earth. With that done you can then place a thin layer of gravel (pea pebbles work great) with the sandbox on top. Staple a layer of weed block into the inside of the sandbox and fill with play sand. The gravel underneath the sandbox will assist with water drainage and the weed block helps retain the play sand.

While you can simply place the sandbox in the yard on top of grass you are presented with a couple of possible problems. First up some breeds of grasses could continue to grow up and through the sand overtime. In addition having sand directly on top of grass without a gravel base will make drainage a problem as water will have very few places to escape to.

 

For more summer project tips and ideas visit homedepot.com. To find a local Home Depot store, click here.