Plastic grid shed base

[The Gauge]

Using plastic grids upside down, well kind of...?

I have a new larger shed on order and plan to use more of the existing plastic grids that my current smaller tool shed is stood on (on top of a paved patio).

Whilst the grids are normally placed open side up and filled with gravel, as I don't need the gravel mine are flipped upside down so the shed base sits on the flat surface of the grids for better contact. I've pushed my toolshed back a bit for this photo so you can see what I mean..





However, is there a slim chance of rain getting under the edges of the shed and sitting on the flat surface of the grids, trapped between the two? I'm wondering whether to flip the grids over so the shed will be resting on the thinner 'fins' of the grids instead, but without any gravel. Would they dig into the shed base though without the extra load bearing support of the gravel?

[Richard-D]

I'm sure you'll be fine with either and they will serve the purpose either way. I also have a habit of overthinking these things. There will always be a contact patch which could trap moisture, either way will allow it to dry out though.

I think the term is 'analysis paralysis' , it'll getcha if you let it.

[chris1roll]

Mine is sat on these:

https://www.kedel.co.uk/mixed-plastic-lumber/hdpe-...

Plenty of space for air circulation, won't collapse, and probably cheaper.

A couple of pictures of it under construction (was 3 years ago now):

[The Gauge]

Richard-D said:

I think the term is 'analysis paralysis' , it'll getcha if you let it.

I'm a victim of that, for sure But I do like to do things absolutely right.
I plan to treat the underside of the base with additional preservative (analysis paralysis) before it gets built, so hopefully that will suffice.

Edited by The Gauge on Thursday 24th July 13:36

[Richard-D]

Yes that's the flip side, only having to do jobs once.