how many wires are allowed in a standard outlet box (i believe 3x2 1/2 deep). what do you do if you need more wires than are allowed?how many wires are allowed if i gang 2 boxes?i live in ontario, canada. thanks
In the US by the NEC, it depends on the size of the wires. 14 ga it is 2 cubic inches per conductor. 12 ga it is 2.25, and 10 is 2.5 cubic inches per conductor. Your box is 3 cubic inches if you measured it right so you can only put 1 14 wire in it. Since you seem unsure of what you are trying to do with box fill, call a qualified professional electrician to do the work.
