How To Cut Doorway In Concrete Wall

Line up the blade of a concrete saw over the marks on one side of the wall.

How to cut doorway in concrete wall.

In the photo above the right side of the right vertical rail has been cut. Anyway the landord was adding an overhead door for the next tenant and the concrete cutters came in one morning anchored tracks to the wall and ran the rail saws in about 8 hours they had a 12 ft overhead door cut but like above left the concrete in the hole. This is the first cut through the wall. A circular saw with a masonry blade can also be used to either score or completely cut through the block.

If your cut doesn t need to be exact use a cold chisel and hand sledge to cut the concrete. 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. Score the length of the cut three or four times with the chisel.

Tracing is where the actual cutting will be done on the concrete wall. 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. 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. Don t force a blade into a cut.

Until now i just figured they weren t ready to knock it out. A clear line is drawn to help indicate where the concrete will be cut and how the doorway is going to be made for the proper installation of the doorframe. Cutting the foundation wall. Step 5 insert the masonry saw blade in one of the holes and cut along the line.

3 methodical tracing and cutting. Cut through the remaining lines until you have created the opening.