Greenhouse flooring
Author
Discussion

bobski1

Original Poster:

1,962 posts

122 months

Sunday 12th October
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Greenhouse has been looking tired, mainly through neglect, so I gave a big clean and emptied it all out. I had previously put in some old carpet to make it a slightly nicer place to be but that has become too grim so has been chucked.

The area around the greenhouse will be cleaned up first to help stop the infestation of weeds & slugs. I'll then apply some sealant around the perimeter to help seal the gap at the bottom.

Now currently weight up options on what to do for the floor, it seems to be a mix of sand or soil or concrete. I could dig some out and fit some paving blocks or I could just dig more, level with sand and lay some kind of concrete or simple screed type liquid?

It's not clear if the greenhouse is fixed into position or it's just the weight of it keeping it in position, would be nice to move it and try to fix the floor but for now will keep it where it is to save time




Simpo Two

89,945 posts

283 months

Sunday 12th October
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How about decking tiles once you've got the surface sorted out? https://www.deckingx.co.uk/product/12-slat-hardwoo...

bobski1

Original Poster:

1,962 posts

122 months

Sunday 12th October
quotequote all
They do look good hdnt thought about tiles.

What's best way to sort the surface out?

Pheo

3,474 posts

220 months

Sunday 12th October
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I'm a bit unclear what the sub base is. But looks like it's mounted on a strip foundation (normal) with access to soil below so you can grow straight in the ground?

Typically they do need to be bolted down somehow to stop the wind pushing them about.

Row of utility slabs down the middle and two raised beds at the sides?

Gnits

1,004 posts

219 months

Sunday 12th October
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Yep, I go with some slabs and raised beds if you can.

bobski1

Original Poster:

1,962 posts

122 months

Monday 13th October
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I thought it was strip foundation initially but then one corner has a chunk of concrete which slopes down towards the centre (2nd pic).

Not quite sure the plan for the greenhouse, the last time we used it we had tomato plants in pots rather than into the ground.

Will discuss with SWMBO on what she wants...

ATG

22,502 posts

290 months

Monday 13th October
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Pots need a lot of watering compared to planting into the ground or a raised bed.

In fact you can almost completely remove the need for watering by digging out the bed, fit a pond liner with an in and out pipe, back fill with a few inches of pea gravel, then a membrane over the top, then finally refill with soil. You fill the pea gravel layer with water, and have the exit pipe set up as an overflow to stop the water rising above the top of the gravel. Moisture wicks up from the gravel into the soil keeping the whole thing moist, and plants are encouraged to root deeper. We've directed the run off from a roof into the gravel under our greenhouse so there's a bit of flow through the system. Apart from watering in plants as they go into the soil for the first time, I don't think we've top-watered any of the plants in the beds in the greenhouse this year, whereas the plants on the shelves needed daily watering.

M1AGM

3,863 posts

50 months

Monday 13th October
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Level the floor off, put down weed membrane and then 40mm gravel chippings.

Gives you options for the future and is a cheap way to make it tidy.

bobski1

Original Poster:

1,962 posts

122 months

Monday 13th October
quotequote all
any products people recommend for sealing the bottom edge as a way to stop things getting in through the gap between the concrete and the base of the shed?

netherfield

2,947 posts

202 months

Monday 13th October
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How much of a gap?

CT1 would be my choice if it isn't too big.

RizzoTheRat

27,251 posts

210 months

Monday 13th October
quotequote all
M1AGM said:
Level the floor off, put down weed membrane and then 40mm gravel chippings.

Gives you options for the future and is a cheap way to make it tidy.
That's pretty much what I did, but with a row of paving slabs down the center. I then used big pots or growbags for my plants. The problem though is that you inevitably spill soil and compost on to the gravel so every so often to need to rake through it and clean it up.