Hi everyone, ChrisFixit with The Home Depot Online community here. In this post we’ll be showing you how to construct a covered sandbox. The cover is a great help in keeping debris out of the sandbox and as a bonus it doubles as seating. The sandbox is very simple to put together and makes for a fun beach like getaway for small children. Make sure to download the instructions at the bottom of this post.
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.
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.
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.
Fill all of the screw holes with wood filler and once dry, sand with fine grit sandpaper. Remember when sanding make sure to sand in the direction of the wood grain. Vacuum and wipe the wood clean with a damp cloth before staining or painting. If you intend to stain be sure to test the stain in an inconspicuous area first.
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.
Well folks we hope you enjoyed this project and be sure to check back here at the community often as we continue into the summer.
Note: This project was inspired by Gina at ladygoats.com
UPDATE: IF YOU'RE LOOKING TO MAKE A BIGGER VERSION OF THE SANDBOX COMMUNITY MEMBER PAUL HAS A POST FURTHER DOWN WITH UPDATED DIMENSIONS AND MATERIALS. BE SURE TO READ COMPLETELY THROUGH HIS POST AS THERE ARE A COUPLE STRUCTURAL CHANGES.
What a great job..
I love all of the bright colors you used.
I loved the reveal. Your kids faces were priceless.
Thanks again for sharing such a great video.
many thanks to paul for the larger design.
i'm an amateur DIYer so it took me a while to build this. but here is a quick video of me making this sandbox. thank you home depot and paul. my kids love it.
Paul, I am attempting to build the larger version of the sandbox. It is just barely within my ability level, though I will have some more experienced help. Please send me the sketch up file along with anything else you may have that would be helpful. Thanks
Here in Texas, it's HOT! I don't want my grandkids outside playing in the sand box in the sun--which in my back yard, means it'd be off limits most of the day.
I'd like to add some U shaped pipe straps to slide in an umbrella so they could have shade while they play. Would that work? If the sides aren't deep enough to accommodate a full-size outdoor umbrella already, could you suggest a modification to allow for that?
Love the whole concept--especially how the lid turns into bench seating. Hope to get this built before they're back for their next visit!
On the hinges...where all they're doing is offering connection to the boards, and gravity does all the work, couldn't you use outdoor chair webbing instead? It's water-proof and if in a few years when the sandbox needs to be repainted or re-stained, the straps could be swapped out easily enough. Just bolt on with a washer and wood screw.
the price of hinges is like $21 any way to do them cheaper
Your welcome anytime.
Don't forget to post some pictures of your sandbox when your done. I would love to see it.
Let me know if you have any other questions.:smileyhappy:
Welcome to the community.
The issue that you’re having in adding up the total size is that you’re multiplying the nominal size of the 1” x 4” boards instead of the actual size ¾” x 3.5.
The nominal size or call out size is before they surface all 4 sides.
So with that said let’s do the math again together.
12 x 3.5 = 42 slats
11 x .5 = 5.5 spaces
42 + 5.5 = 47.5 total inches
I can’t tell you how many times I’ve been asked that same question in the aisles over the last 19 years. It can be very confusing for people that have not done a lot of woodworking.:smileyfrustrated:
Let me know if you have any other questions. I would love to help.