This project was built and designed by Stan Sullivan. It’s a simple yet highly functional sandbox with a folding cover that converts into bench seating—perfect for any backyard looking to blend playtime with smart design.
Stan’s approach is easy to follow, even for beginner DIYers. The build uses common lumber sizes, straightforward joinery, and smart details that make the sandbox safer, more durable, and more fun for kids to use.
Watch the full video and subscribe to Stan’s channel:
Why a Covered Sandbox Makes Sense
Many parents grew up playing in sandboxes made from old tires or wooden boxes and remember the hours of imaginative fun. Stan’s updated version brings those memories into the modern backyard with a few big upgrades.
The folding cover keeps the sand clean, dry, and free of leaves or neighborhood critters. When open, the cover converts into sturdy bench seats, giving kids a place to sit and play—or to take a break with a snack.
Materials and Build Planning
The sandbox is made from pressure-treated two-by lumber for the base and one-by boards for the hinged cover. Deck screws, hinges, and optional stain or finish round out the list.
Stan shares full plans and cut lists on his website, but the concept can be scaled to fit your yard or the number of kids using it. The sandbox is designed for strength and simplicity, so it can be completed with basic tools and some weekend time.
Building the Frame
The base is framed out using 2x lumber cut to length and joined with exterior-rated screws. Pilot holes are marked with a combination square to prevent splitting during assembly—especially at board ends.
Once the four sides are secured, the sandbox has a strong base ready for years of use. The use of deck screws means it holds up well against weather and repeated rough play.
Designing the Folding Cover
The most unique feature of this sandbox is the three-part folding lid. Each section is made from spaced 1x boards and joined with strap hinges. When folded open, the lid becomes backrests and bench seats.
Stan uses spacers between boards to get consistent gaps without measuring every time. This makes the process faster and helps with airflow when the lid is closed, which reduces moisture buildup.
Support rails run underneath the boards and are attached with screws. The rounded edges of the rails face up when the cover is flipped, so there are no sharp edges for kids to bump into.
Hinge Placement and Function
The hinges are installed with a slight overhang on the knuckles to allow the panels to fold flat onto each other. This creates smooth movement and prevents binding.
Spacers are also used during installation to set the correct gap between lid sections. Once all hinges are in place, the folding mechanism is smooth and durable.
Safety and Finishing Touches
All top surfaces are sanded with medium-grit sandpaper to smooth rough edges and reduce splinter risk. This step is especially important in a project that’s meant for children.
A deck stain or outdoor wood finish helps protect the sandbox from rain, sun, and daily wear. Applying it both inside and out extends the life of the sandbox and helps maintain its look through the seasons.
Optional Shade Canopy
Stan’s website also includes plans for an optional canopy that can be added to the sandbox. While not shown in the main video, this addition provides shade and makes it easier for kids to play on hot days.
He plans to showcase an alternative canopy design in a future video, offering even more flexibility for customizing the build to your family’s needs.
Why Stan’s Design Works
This sandbox stands out for a few key reasons. The folding lid solves common problems like weather protection and sand containment. Bench seating gives the project extra function without extra space.
It’s also designed for DIYers of all levels. With basic tools and simple joinery, the project can be built by a single person over a weekend. Stan’s instructions and plans make it even easier to get it right the first time.
Tips for Your Own Build
- Use leftover wood where possible to save on material costs.
- Add drainage to avoid water pooling in the sandbox after rain.
- Let the kids help decorate or add handprints for a personal touch.
- Choose stain or paint that’s kid-safe and UV-resistant.
- Check the structure regularly for loose screws or splinters and make repairs as needed.
Encouraging Play and Outdoor Time
This project offers more than just a place to play. It encourages creativity, social play, and outdoor time—all from the comfort of your backyard. And thanks to the thoughtful design, it’s just as rewarding to build as it is to use.
Parents can sit nearby on the benches or keep an eye on kids from a shaded patio. It’s a small build with big benefits that will last for years.
Get Stan’s plans: https://www.simplyeasydiy.com/2016/04/diy-covered-sanbox-with-built-in-bench.html.