How much ballast and cement do i need for 14 sq metres at 100 mm

1.4 cubic metres of concrete is required, or approx 3 tonne of ballast 20 bags cement.

Get it delivered! It will work out alot cheaper if you take time work ect

This work out to 3 Tonne of ballast and 18 to 20 cement if you go to Wickes or B & Q there doing by four cement get one free.Or you could get we mix you lay they only charge what you use.Hope this is some help Matt

If its an exact calculation your after, its 2.1 tonne of ballast and 14 25kg bags of cement. But i would totally agree with CTPBuilders, as its better to have a little bit too much than not enough.