Rough-in + fit-off
The two stages where a tidy electrical job is made or broken.
This page explains rough-in, preline, fit-off and final testing so builders and owners know exactly what they’re buying.
Stage split
Know what happens when.
1
Rough-in
Hidden wiring, outlets, lights and appliance runs before linings are closed.
Hidden wiring, outlets, lights and appliance runs before linings are closed.
2
Fit-off
Switches, outlets, fixtures and appliances are installed and tested.
Switches, outlets, fixtures and appliances are installed and tested.
3
Final test
The system is checked, labelled and handed over with the required documentation.
The system is checked, labelled and handed over with the required documentation.
Worth knowing
Rough-in mistakes are expensive; fit-off ones usually aren't
A wrongly placed power point at rough-in stage means cutting into finished walls to fix. The same mistake caught before plaster goes up is a five-minute change. That's why final positions for switches, points and fittings need to be locked in and walked through before rough-in, not decided along the way.
Fit-off is more forgiving — fittings, colours and some fixture choices can usually still change right up until installation, since nothing structural depends on them.
FAQs
Rough-in and fit-off questions
?
Can I change the plan after rough-in?
You can, but it costs more once walls are sealed or cabinetry is set.
You can, but it costs more once walls are sealed or cabinetry is set.
?
What should I prepare for quoting?
Plan set, appliance list, ceiling heights and any builder constraints or deadlines.
Plan set, appliance list, ceiling heights and any builder constraints or deadlines.
?
Is this useful for renovations too?
Very. It helps stage the work so each trade can stay out of the next trade’s way.
Very. It helps stage the work so each trade can stay out of the next trade’s way.