The blocks and bricks make a solid wall are not conducive to doors or openings of windows. However, with proper cutting tools, you can open the solid surface to form a door. This is a handy way to carry another entry to the basement, making it safer in case of fire, or simply to create more living space outside your home. Obviously, you can not simply cut a submerged basement wall or earth pressure will push out your house. Cut only the blocks or brick walls that have nothing but space on each side.
Trace the opening for the door with tape. Leaves enough room for the door, the door frame and the framed material around the door opening. Use the measure to the nominal size of the door and adds 4 1/4 inches (10.79 cm) in width and 2 1/4 inches (5.71 cm) in height. The nominal size is the size of the door without any frame.
Check with an engineer to ensure that the wall does not need extra help before removing the masonry material, or that the opening will weaken any foundational component. Do not try to cut through any block or brick without first studying the plans of your house. You can seriously damage your property if you fail to take this step necessary.
Drill pilot holes through the block or brick with a drill and a 16-inch (40.64 cm) of masonry. Placing the hole in the lower edge of the opening of the door and at the upper corners.
Tape the outside of the wall, using the pilot holes as markers for application of the tape so that the contour matching the inner contour.
Use a concrete saw with a diamond blade 14 inches (35.56 cm). Get protection for eyes, ears, and a dust mask and work gloves before sawing the wall. Cut along the inside of the wall with the saw , having a helper to spray water on the dust with a hand sprayer to reduce dust generated from cutting the block.
Take the saw and finish the cut until you cut around the outline.
Using a hammer 4 pounds (1.8 Kg) to hit the block and brick from the inside outward. Remove the block and brick broken in the area with a wheelbarrow.
Hammers irregular pieces a brick chisel and hammer until the opening is ready for the door frame. Place the chisel on the broken lines and hit your head with the hammer. This makes removal easier and helps focus the break in the right spot.