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Appel200026 Sep 2021 22:33Hello everyone,
We are currently starting our "garden shed" project, but still at a very early stage.
It will be a masonry garden shed with a footprint of 4x5 m (13x16 ft).
For this, a concrete slab will be poured, probably 15-20 cm (6-8 inches) thick and reinforced.
And no, I don’t expect to have to remove the slab again in the next 50 years.
About my idea:
The plot has a slight slope. Unfortunately, when digging the gravel bed under the slab, we made a bit of a mess... well, filling it back with gravel is at least easier than digging it out.
Today, I took a look at the “hole” and got the idea to build a small storage cellar beneath the garden shed.
Sounds more ambitious than it really is—I thought of a small space about 1 m (3 ft) deep, 1 m (3 ft) wide, and 2 m (6 ft) long. For storing potatoes, carrots, apples—something like that.
I’ve already read quite a bit about “earth cellars,” but this isn’t really an earth cellar.
My basic thoughts were:
Gravel and crushed stone as the base, then paving slabs? Or should I better use a concrete floor?
Should the walls be made of insulated concrete forms (ICF) that are reinforced and poured, or better to build with sand-lime bricks?
Alternatively, I have some Poroton blocks here lying around (17.5 cm (7 inches) thick) that could finally get used...
Do I need to waterproof the walls from the outside? There is at least 1 m (3 ft) of gravel on each side of the “cellar,” so I consider the risk of lateral water infiltration to be rather low...
Has anyone here done something like this before?
How did you proceed, and do you have any practical experience?
Or any other input on this topic?
Thank you!
Best regards
We are currently starting our "garden shed" project, but still at a very early stage.
It will be a masonry garden shed with a footprint of 4x5 m (13x16 ft).
For this, a concrete slab will be poured, probably 15-20 cm (6-8 inches) thick and reinforced.
And no, I don’t expect to have to remove the slab again in the next 50 years.
About my idea:
The plot has a slight slope. Unfortunately, when digging the gravel bed under the slab, we made a bit of a mess... well, filling it back with gravel is at least easier than digging it out.
Today, I took a look at the “hole” and got the idea to build a small storage cellar beneath the garden shed.
Sounds more ambitious than it really is—I thought of a small space about 1 m (3 ft) deep, 1 m (3 ft) wide, and 2 m (6 ft) long. For storing potatoes, carrots, apples—something like that.
I’ve already read quite a bit about “earth cellars,” but this isn’t really an earth cellar.
My basic thoughts were:
Gravel and crushed stone as the base, then paving slabs? Or should I better use a concrete floor?
Should the walls be made of insulated concrete forms (ICF) that are reinforced and poured, or better to build with sand-lime bricks?
Alternatively, I have some Poroton blocks here lying around (17.5 cm (7 inches) thick) that could finally get used...
Do I need to waterproof the walls from the outside? There is at least 1 m (3 ft) of gravel on each side of the “cellar,” so I consider the risk of lateral water infiltration to be rather low...
Has anyone here done something like this before?
How did you proceed, and do you have any practical experience?
Or any other input on this topic?
Thank you!
Best regards
Appel2000 schrieb:
a bit "overgrown".... well, filling it with gravel is at least easier than digging it out.
Today I took a look at the "hole" and got the idea to build a small storage cellar under the garden shed. The problem is probably that it’s hard to imagine. You only thought of the idea when you saw it, right?
Why don’t you upload a photo?
A
Appel200027 Sep 2021 10:48Yes, that’s probably correct.
A photo really helps in this case.
To explain:
The top edge of the L-shaped concrete blocks is also the top edge of the foundation slab.
The “upper” yellow line marks the planned footprint of the garden shed; the area between the upper and lower yellow lines will likely need to be filled (probably with gravel).
I used the green box to indicate the “basement”… if I decide to go ahead with that, I will excavate a bit more below the “basement” to make it worthwhile.
Clear?
Best regards
A photo really helps in this case.
To explain:
The top edge of the L-shaped concrete blocks is also the top edge of the foundation slab.
The “upper” yellow line marks the planned footprint of the garden shed; the area between the upper and lower yellow lines will likely need to be filled (probably with gravel).
I used the green box to indicate the “basement”… if I decide to go ahead with that, I will excavate a bit more below the “basement” to make it worthwhile.
Clear?
Best regards
A
Appel200028 Sep 2021 22:21Anyone have an idea?
At the moment, I’m more inclined to use shuttering blocks, anchor them in the ground, and then pour concrete around them.
I still need to properly compact and gravel the sides.
I would have some concerns if I were to use just a few small 17.5cm (7 inches) Poroton blocks, whether they could withstand the pressure...
At the moment, I’m more inclined to use shuttering blocks, anchor them in the ground, and then pour concrete around them.
I still need to properly compact and gravel the sides.
I would have some concerns if I were to use just a few small 17.5cm (7 inches) Poroton blocks, whether they could withstand the pressure...
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