How To Cut An Opening In A Concrete Wall

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How to cut an opening in a concrete wall.

Score the length of the cut three or four times with the chisel. With the intended position of the lintel marked on the wall carefully use an angle grinder or masonry saw to cut away the mortar. Don t force a blade into a cut. 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. Double check your marks on both sides of the wall. Lift the line simultaneously from each end and slap it to the ground. 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.

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. Steel lintels in concrete block walls are placed in the mortar between blocks so the first step will be opening a space for the lintel itself. Repeat step 1 on the other side of the opening.

How to make cutouts through a concrete 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. Designate the area of finished concrete to be cut using chalk lines.