how to install aluminum railing on stairs

Stair railing installation involves careful slope calculation and component alignment. Begin by determining stair angle: measure total rise and total run, then use Archsky’s slope guide to select the matching stair rail bracket. Mark post positions—top, bottom, and intermediate—ensuring each sits on a structural support. Drill holes and set wedge anchors or use through-bolt kits through treads or stringers. Fit adjustable stair post bases to match the calculated angle, plumb each post relative to the stair incline, and torque anchors per manufacturer specs. Cut stair rails to length with a miter saw at the calculated slope angle, then slide rails into post channels. Add infill elements—balusters or glass—and secure with set screws or snap covers. Finish by installing handrail brackets and handrail, verifying continuous grip and code compliance.