Building a concrete step

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KyleT87

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Hi everyone,

I have a relatively small project but one I need to get right. The back of my garage I have my fridge freezer, washing machine and dryer. Our garage has been known to flood and ruin the appliances and so I am going to build a concrete step for the 3 appliances to sit on.

The step will be 250cm wide, 110cm deep and about 20cm high. The plan is to place a wooden sleeper the width of the step and then fill in with hardcore. I will then buy pre mixed concrete to pour on top of the hardcore.

My questions are, do I fill the step to the top with hardcore? How much concrete will I need? Will is sink through the hardcore or just lay on top? Obviously if it sinks through then I’m going to need quite a lot of concrete.
 
I would build a base using a sheet of 25mm WBP ply screwed into 3" fence posts laid flat.

If you want to go the hardcore /concrete route then minimum 100mm concrete. Ram down the hardcore with a sledgehammer. The concrete will stay on top.
 
I'd be going for council slabs on brick/blick piers. Slabs free and about £20 for the other bits. And any flooding will pass under it.
 
cdbe said:
I'd be going for council slabs on brick/blick piers. Slabs free and about £20 for the other bits. And any flooding will pass under it.
Click to expand...
That’s the width of the back of the garage and the 3 appliances are spread out side by side within that width. The depth is to accommodate plumbing/sockets etc.
 
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