I need to build a concrete foundation measuring about 4.9m x 3.7m (16ft x 12ft). I'll make the formwork and then get a company to lay the concrete for me. The concrete will be deep enough not to require to be laid into bays.
I won't have a helper. Is it feasible to level such a large area of concrete on my own, either by standing in it and moving a screed board as I walk backwards or by standing to the side and bull floating it?