Hi all found this site and though I best post her for a bit of advice.
I am about to lay a concrete garage base for a double garage. The size will be 6.5mx 6.5mx 0.15m. The main question I have is regarding the need for expansion joints if I use C20 mass concrete with no mesh? Or (I know it would be preferable) should I use 1 layer of mesh in the top surface?
It's all to do with cost, if I can get away with out using the mesh I will.
Nik