How To Cut An Opening In A Concrete Wall

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How to cut an opening in a concrete wall.

Designate the area of finished concrete to be cut using chalk lines. Score the length of the cut three or four times with the chisel. 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. 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. Get a friend to hold one end while you hold the other and run the line over the region to be cut. Double check your marks on both sides of the wall. Mark the wall where you plan to make your cuts using a tape measure to verify the exact location and dimensions for the new opening.

How to make cutouts through a concrete wall. Don t force a blade into a cut. A huge water cooled cutting saw attaches to each rail and is slowly moved up and down the rails. Lift the line simultaneously from each end and slap it to the ground.

Repeat step 1 on the other side of the opening. With the intended position of the lintel marked on the wall carefully use an angle grinder or masonry saw to cut away the mortar. When you re cutting concrete that is already poured and finished use a chalk line to mark the region. Until now i just figured they weren t ready to knock it out.