How To Cut An Opening In A Concrete 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 cut an opening in a concrete wall.

Lift the line simultaneously from each end and slap it to the ground. A circular saw with a masonry blade can also be used to either score or completely cut through the block. Don t force a blade into a cut. Double check your marks on both sides of the wall.

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. Score the length of the cut three or four times with the chisel. Until now i just figured they weren t ready to knock it out.

Repeat step 1 on the other side of the opening. The ring saw can cut concrete quickly and accurately with very little setup. 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. 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.

When you re cutting concrete that is already poured and finished use a chalk line to mark the region. How to make cutouts through a concrete wall. With the intended position of the lintel marked on the wall carefully use an angle grinder or masonry saw to cut away the mortar. The concrete cutting contractor used a hammer drill to drill and bolt two parallel metal rails to the concrete wall.