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yeah of course. All the shuttering was spare wood lying around my shed or garden and so were the bricks and paving slabs so no cost there. I also have a plasterers float and various tools etc already.
The size of the extension is circa 2' 6" wide by 6' long by 6" deep (sorry it's not in metric) and took 4 bags of cement (£20) plus 16 bags of ballast (£36) to fill.
The greenhouse was free too so total cost was nominal. Don't think I'm missing anything.
You might need to hire a mixer cos this makes it ten times easier but if you can beg, steal or borrow one that is the ideal result.
Progress on preparing a wider concrete base for my larger greenhouse.
I've now prepared the wooden shuttering ready for mixing and pouring the concrete.
Pic 1 - I've added some existing blocks to fill up some of the space and will pour the mix over these. The 2 x 2 slabs at north and south (with spare wood and drill on them) are sitting on top of the shuttering to prevent it moving
Pic 2 - the bubble isn't perfectly level in fact it's sloping up but all I'm doing is ensuring that the shuttering is taller than the existing base all the way around so that I don't get any overflow. The wooden wedge at the bottom is to push out a slight bow as the wood I used has got a bit wet and slightly warped
Pic 3 - The plan is to fill up to the first step and then lay three 2 x 2 slabs (resting against the trees in the background) on the upper step hanging across the newly filled gap and pour more mix over those. I've also placed a couple of 2 x 2 on the east of the shuttering to prevent any bowing from the weight of concrete mix when added
Next step is to head off to Wickes or Homebase to pick up some cement and ballast.