How To Cut A Doorway In A Concrete Block Wall

Cut through the remaining lines until you have created the opening.

How to cut a doorway in a concrete block wall.

Score the length of the cut three or four times with the chisel. If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Knock the first one out in the centre then use a multipurpose handsaw to cut the mortar and remove the blocks.

Choose which side you will start with and punch a hole in the other side with a sledgehammer which will help draw concrete dust away from you as you cut through the wall. This lumber should be within 1 8 inch of what the width of the concrete block wall is now when you add the thickness of. When you get near the edges of the opening you may wish to switch to a masonry chisel and hammer to prevent accidental damage to the surrounding walls. Don t force a blade into a cut.

Step 4 re form the blocks as needed. Step 5 insert the masonry saw blade in one of the holes and cut along the line. One way is to face the concrete block opening with treated 2 by 10 material. The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall.

A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails. Removing all the blocks taking outside cutting and re fitting the halves i guess it ll all be tidied up afterwards with plaster etc. Use a sledge hammer to break through the concrete inside the scribed lines.