How to Modernize a Metal Stair Railing

Measure the length of the staircase, which gives you the length needed for the new railing. Determine the height needed for the new railing, opting for the same height as the old one or changing the height to accommodate pets or small children.

Pick a new railing for your staircase. A glass system features glass panels placed between wood supports, while a cable system uses metal cables evenly spaced inside metal supports.

Remove the hardware supporting the old railing with an electric screwdriver. The railing should feature supports on one wall and smaller brackets spaced evenly across the bottom. The supports keep the railing from tilting or moving when used. As you remove each support, mark the location with a pencil.

Attach the support beams of the new stair railing to the wall or top of the staircase. If attaching to the wall, press the support bracket against the wall and screw through the bracket and into the wall. For railings attached to the floor, screw straight down until the screws sit flush with the top of the bracket.

Move down the staircase, attaching the support beams of the new stair railing to the floor. Follow the marks you made from the older railing, screwing a bracket and support beam into each of the marks. Place additional support brackets on each beam and lay the railing on top. Screw through the brackets into the beams.