The plyometric box was made by my partner Chris. He makes lots of our most useful gear. Unfortunately he made the boxes before he started his blog so it’s not been written up, but he’s got some stuff about them on a summary page.

I’m sure he’ll make some more one day and write them up, but in the meantime I’ll do my best to explain the measurements here (since that’s the hardest bit).

The sides are four pieces of wood the same size, one dimension being the height you want the box less the thickness of the wood you’re using, since you add the top piece to it. The other side is the width/depth you want the box to be, less the thickness of the wood you’re using, again. It makes a completely square box (except for the height).

Cut a fifth piece for the top that is square at the size you used to calculate the width of the side pieces, eg. the width of a side piece plus the thickness of a piece of wood.

It’s worth mentioning that we used pretty robust wood that was a good 10mm thick. You’re going to be standing on this while holding weight so you want the wood to take your weight, unlike chipboard which would probably break prety quickly.

Using clamps etc, stand the side pieces together so that looking at a side has a peice and the overlap of the width of the wood from one neighbouring piece (hopefully if you’ve got them in front of you this will eventually make sense – photos would help here!). Put two screws into each join corner to hold it together then stand the “lid” on top and put in two screws per side to hold it on.

I hope that helps. We got the local DIY place to cut the wood for us with their big electric saw so that the sides were completely straight. Unless you’re an expert with a saw I’d recommend this, even if it costs a bit of extra money. If the sides aren’t straight you’ll struggle to get it to piece together. Best of luck if you try it out!