You can replace a staircase railing wooden shafts for iron with these step by step instructions. Save your old wooden shafts if possible for another project, donate them or remove them if your staircase railing is one solid piece. You can find the axes of iron or barred retailers online or in local store home improvement. Remove the wooden shafts from the top down, cutting them in half with a saw, either with a jigsaw or a band saw.
Pull the two pieces of wood and remove all nails exposed on the railing of the stairs and on the floor. Some shafts of the ladder are made with fillers wood installed between the axles. Spread wood putty in the nail holes and let dry. Notches in each hole drilled shaft staircase railing to hold the iron in place, if necessary.
Iron pregnant each axis at the top, just below the connection to protect against dripping glue. Test shafts dry before you start installing them with epoxy. Place the base of the bars on the shafts of iron before gluing them in place. Apply a small amount on the upper and lower holes on the railing of the stairs and on the floor.