Build a Simple Pine Box with a Locked Dado Joint

I made a box a while back using just nails and butt joints. No glue. It worked fine, but I wanted to try something a little different — still simple, but with some new techniques. This box uses a locked dado joint, glued top and bottom panels, and then you cut it open with a handsaw to make the lid.

The wood I used is junk. Scrap I've repurposed from other projects. If the wood for your top and bottom is thinner than the sides, that looks sleeker. But honestly, use whatever you've got. Pine is cheap and easy to find. You won't feel precious about it, which makes working on it more fun.

• Pine boards (or whatever wood you have)
• Wood glue
• Japanese handsaw
• Chisels (sharp)
• Marking knife
• Hand plane
• Sandpaper
• 1-inch hinges (2)
• Clasp (optional)
• Strop for sharpening

Start with the long sides. Then measure and cut the short sides. I'm using a locked dado joint instead of butt joints or box joints. This means you cut a section out of one piece that fits into the other.

The locked dado gives you a lot of glue surface. When the box is closed, it looks like a regular butt joint. Only you know it's there. That's the fun part.

Mark where the joint goes. The short side pieces sit inset into the long sides. Carve out that section with a chisel. Keep your chisel sharp — I use a strop to hone the edge before cutting.

Before you glue the box together, glue up the panels for the top and bottom. You want one solid piece for each.

Here's a tip: if your joinery on the sides isn't perfect, it doesn't matter. The top and bottom will cover everything anyway.

Make sure all your side pieces are the same height. I planed mine down together so they matched exactly.

Glue the sides together with the locked dado joints. Then glue the top and bottom panels onto the box. Clamp it up and let it dry.

Once it's glued, you won't be able to see inside. That's fine. You'll cut it open soon.

I left mine overnight. In the morning I was like a kid waiting to open a present — even though I knew there was nothing inside except some squeezed-out glue.

This is the cool part. Instead of using a table saw or router, I used a Japanese handsaw. I was a little nervous — you don't want to mess up your box. But it's not that hard.

Mark your cut line all the way around the box. Start sawing, following the line as best you can. If you veer off, flip the box over and cut from the other side. You've got some flexibility.

I put a piece of folded sandpaper in the cut as I went to keep the saw from pinching. It keeps the kerf open.

My cut wasn't perfectly straight — I veered a little. But I knew I could plane it flat afterward. So don't stress about perfection on the first pass.

Once the box is cut open, you'll have a rough saw-cut edge on both the lid and the box. Use a hand plane to clean them up.

I marked a line showing how far down I needed to plane to get everything even. Pine planes beautifully — it works well in any direction, so you don't need to worry too much about grain direction.

Take your time. You want both the lid and the box to be flat and even all the way around.

I used 1-inch hinges. You can either carve out a recess for them (more work) or just mount them on the back (easier). I went with the back.

I also added a clasp. A box like this feels more complete with one, and it keeps the lid secure.

Open it up and you'll see that locked dado joint inside. It's a nice reminder of the work you did. And because you glued the top and bottom on before cutting, the lid matches the box perfectly. It looks seamless when closed.

The Japanese handsaw worked great for this. You make your marks, follow the line, and if you drift a little, flip it over and come from the other side. Then clean it up with a plane. Simple.

This is a great project if you're starting out with hand tools or just want something relaxing to build. Nothing complicated, nothing serious. Just a solid box that looks good and works well.