How to Build a Galvanized Pipe Banister

Take measurements for the galvanized pipe handrail. Measure the total length of the handrail, as well as the height from the ground. If you follow OSHA standards, the handrail must be at least 34 inches high, unless the banister will primarily serve children or short people. You need enough pipe for the overall length of the banister, including a 1-foot extension at the top and bottom of any stairs, plus a 34-inch length of pipe for each support. You must place one support for every 4-foot length of banister. For example, with an 8-foot banister, you need three supports.

Purchase the galvanized pipe and fittings needed for your project based on the measurements.

Place a galvanized flange on the floor or ground where the banister starts. Use a marker to indicate the locations of the holes to drill. Drill the holes into the floor or ground using the drill and a drill bit appropriate for the material you are drilling into. The hole should be slightly smaller than the bolt you are using for the installation.

Secure the flange to the ground using lag bolts, a socket and ratchet. Place a section of pipe on a flat surface and measure the length you need for a support using a tape measure and a marker. Cut the support using a jigsaw and metal cutting blade. Install the post support into the flange and tighten the setscrew using an Allen wrench. Wear safety glasses when using the jigsaw.

Install a galvanized elbow fitting on the top of the first support and tighten the screws using an Allen wrench. If your first length of banister is on an incline, use a galvanized swivel fitting in place of the elbow. Cut the first section of banister from your pipe supply using the jigsaw with the metal cutting blade. Install the section into the fitting and tighten the screws with an Allen wrench.

Connect a T-fitting to the end of the first length of banister and tighten the setscrews with an Allen wrench. Use a rubber mallet to tap all of the pieces together as necessary in case of tight fits. Install a support into the vertical opening on the T-fitting and tighten the setscrews.

Place a flange on the bottom of the support. Place the support flange where you will permanently install it and mark the holes where you will need to drill. Drill the holes and then install the lag bolts for that flange using a socket and ratchet. Repeat the process until you reach the end of the area where you are installing the galvanized banister.