So you've decided to add some new electrical wiring around the house and you've decided to use conduit. The pressing question comes up and you're not sure what the answer is. Just how many wires are allowable in conduit anyway? Can I just stuff the conduit full by pulling until my face turns blue? Maybe I should hook the end of the fish tape to my pickup to force them in? You know the old saying...If it doesn't fit, force it!
Well as much as I'd like to have the videos of these feeble attempts, that is certainly not the proper method for pulling wire in conduit and it certainly is not allowable by the National Electrical Code. This article gives some very good examples of different conduit types and some common sized conduits used in home wiring. The table provided details common electrical wire fill for different sized conduit. Do you know how many wires are allowed?