new sleeper raised bed
Fire Posts: 17,116
edited April 2021 in Tools and techniques
A local school project which would like a new raised bed for their playground, around 1.5x1.5m. The spot is on asphalt on a gentle slope. I think wide sleepers would be great, so that kids can sit on the edge and the bed would last longer. But given the spot, the planter would need to have a base (not earth directly on to the ground). This seems a tricky combination.
Any design ideas would be welcome. Thanks.
(The drainage situs is fine).
How would you level up the sleepers If the bed is on a slope.
What the height would need to be to sit on it easily, although children are certainly more flexible!
The size of 1.5m is quite wasteful if your sleepers are 2.4 long.
You could probably use a geo textile as a base which would allow water through but not soil and could be stapled in once the bed is in situ.
You could use scaffold boards for the same effect but not as sturdy for sitting on and more fiddle to make.
Still use a textile base though.
If it's a very gentle slope you could probably get away with laying it flat on the ground (well not flat, following the slope if you know what I mean).
I would use sleepers laid on the flat side, which is sturdier and gives a more generous perch for sitting.
Yes, it's an option. The slope is quite acute, so after a few weeks of reflection, I think it's easier to keep it on the flat. I will take a spirit level with me on the next visit. It's proving quite tricky to even get in and check on the site.