Compost, Topsoil & Bark
“How many bags to fill this raised bed?”
A bulk bag is not a unit of measurement. Real suppliers put anywhere from half a cubic metre to a full one in a bag they all call the same thing. Work out the cubic metres first — then compare bags knowing what's in them.
- Volume, weight range and bag counts for six materials
- Six named suppliers' actual stated bulk-bag volumes, side by side
- Weight as a range, because wet soil and dry soil differ by 80%
- Depths from the RHS, Rolawn and the University of Minnesota Extension
- Play areas checked against both BS EN 1177 and the US CPSC handbook
- This one is finished and tested — not on the build list
- It will be $9, same as every other tool
- One email when it goes up, no list, no spam
Three steps, then you're done
Rectangle, circle, or type the area. Add as many as you like.
The depth presets all come from named sources.
Then ask the supplier what's in their bag.
Questions
Do I need to install anything?
No. Each tool is a single file. Double-click it and it opens in Chrome, Edge, Safari or Firefox — whichever you already have. No account, no password, no software.
Does anything get uploaded?
No. Your numbers and files never leave your computer — the tools have no way to send them and no internet connection is needed to run them. You can switch your wi-fi off and they still work.
I'm not good with computers. Is this too hard?
The first thing every tool does is walk you through it in five short screens with pictures. Then there's a button that fills it with example numbers so you can watch it work before touching anything.
Will it work on my phone?
Yes. Email yourself the file and open the attachment, or drop the files in iCloud Drive, Dropbox or Google Drive and open them from there — then they're on every device you own.