Drywall – How to cut an access panel in an inside wall

drywallplaster

I have a home theatre and I need to run some cables from the floor through to the roof.

My original plan was to drill from the roof down through the beams and then cut a small hole at the bottom through which to feed cables through.

However, I can't find a way of drilling from inside the roof down through the cross beams in the wall frame.

So now I want to cut a panel out in the plaster of the front wall. The panel will be hinged so I can open and close it.

What this means is that I will be able to get a drill in there then and drill through the beams and thus get cables to run through the wall.

I was wondering how to approach this so that the edges weren't ragged but nice and straight into which i can then fit a (door) as such to cover the hole.

Best Answer

Most access panels have a lip that covers a good half inch around the perimeter of the opening, so you don't have to make the hole perfect. Pick up your desired panel from the store so you have a reference. It should include a door and a separate part for mounting on the wall:

access panel

Start by cutting your hole slightly smaller with a drywall keyhole saw.

drywall keyhole saw

Check for any obstructions with this hole and adjust the position accordingly to make your final hole. Use the panel on the wall as a template to mark out the position of the final hole, and then cut that out with either the same saw, a sharp utility knife, and/or a rasp:

drywall rasp