Hi All,
I'm new to this group and thought I'd post a question (probably answered be fore so apologies, I can't find the answer).
I've decided to have a go at replacing my old shed which presently sits on a sloping concrete base that must have been laid by a drunk! Either that or one end of the base is slowly sinking (does this happen?)
the are of the existing base is approx 16ft by 10ft and slopes by about 3 i nches across the 16ft side. My old shed sits at a funny angle and the door doesn't close properly as there is a large triangular void at the top of th e door.
I want to create a 16 ft x 16 ft base in it's place to build a new workshop on, I'm reasonably proficient at DIY and have used concrete before (laying patios and fencing) but have never laid a concrete base.
The area behind the shed drops down about 2.5 ft, my plan was to run a spir it line level across from the highest corner and enclose the entire area wi th a retaining wall using dense 440mm blocks.
I would then chuck in a bit of hardcore and compress, followed by about 6in of ready mixed concrete and level off.
My question is, would I experience any problems with the new layer of concr ete being quite thin as I approach the highest corner? The thickness is lik ely to be only a few mm thick.
The alternative is to take out all the existing concrete and level this (wi thin a retaining wall) followed by a layer of concrete (6in) however this i s likely to be quite a bit of hard work using a sledge hammer. My project i s estimated to be around £2k so I'm hesitant to bump the cost up by hirin g tools if I can get by without.
Also, if I was to take the second option, is there any merit in concreting over a reinforced steel grid, Or is this unnecessary?
Any advice would be gratefully received.
Kind regards Damian