How To Cut A Doorway In A Concrete Block Wall

Use a sledge hammer to break through the concrete inside the scribed lines.

How to cut a doorway in a concrete block wall.

Step 4 re form the blocks as needed. The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall. One way is to face the concrete block opening with treated 2 by 10 material. If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete.

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. Each time the saw makes a full pass up and down the contractor increases the depth of the saw blade so that it eventually cuts through a 10 concrete wall. Removing all the blocks taking outside cutting and re fitting the halves i guess it ll all be tidied up afterwards with plaster etc. Score the length of the cut three or four times with the chisel.

In the photo above the right side of the right vertical rail has been cut. 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. Cutting the foundation wall. 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. Step 5 insert the masonry saw blade in one of the holes and cut along the line. Cut through the remaining lines until you have created the opening.