jcapili

The base was however wide the wood was, I just used scraps that I had in my backyard. I'm not sure which measurements are confusing for you, but all the measurements I wrote down are in inches so you can use an online converter for the ones you're confused on!

Thanks for reading! Feel free to send pictures when you finish!

I actually already had all the wooden components, so I only had to buy the screws which was probably something like $3 total. But altogether I imagine it can't be more than about $15, especially if you can manage to find old wood to reuse. Happy building!