Building a wood rail fence can be a complicated process. It requires some knowledge of joinery before tackling the installation, but the results can be a beautiful hand-built railway that will last. The rail can be built entirely with tools and equipment found on most building warehouses.
Check local building codes to determine the required height of the wood rail fence and the distance required. Design your railing with these requirements in mind. The railing should be designed with an eye to mounting in seamlessly with the design of the rest of the stairs. Install the insert by placing it on the tread of the lowest step on the stairs and tracing around the base. Use a jigsaw blade to cut holes for the service. Release the post through the hole and then use a secondary level to check that the post is vertical.
Secure mail to the wood rail fence by drilling two recessed holes in the post one on top of the other. Free-running holes within the recess hole through both the post and the stairs. Place a trolley bolt through the holes and secure with a washer and nut on the inside staircase. Squeeze a 2 x 4 practice rail to the post and use a level attached to a tape measure. Squeeze the upper end of the rail in the ceiling or wall where the rail ends. So that the height between the last step and the rail is the same as between the second step.