What is the stamdard size for making hole in wall for installing window air conditioner?

Answer 1

Airconditioners come in various sizes-- Measure from the back of your unit-- measure across and side -to-side and write down the measurement on the wall where you want to make the hole.

now make sure there are no electric wires in the area of your desired hole

if all is well-- start cutting through the walls first layer of drywall or stucko-- after you cut your square inside the house use a 10 inch lone by 1/4 inch dril bit to drill a hole in each of the four corners so that you have your marked cutting guides outside the house. and then go outside and do more cutting.

once you have a close to perfect square start framing the square with 2 x 4's and 1 x 6's.

To be honest this is a job for a handyman such as myself unless you are willing to try your hand at handywerx.

If I were doing the job-- I would cut a hole larger than I need by about 6 inches larger on the top cut- and 6 inches larger on one of the side cuts. This will give me extra space to build a good frame with 2 x 4's to hold the units weight-- I can always narrow the hole to a perfect fit by using 1 x 6's.