I've got three exterior steps made of natural sandstone. They are 6 ft wide, and 10" thick. I need to anchor a metal handrailing to them. The railing has two feet: 1/4" metal plates with 3/8" holes drilled 10" apart.
I original thought of using cammed anchors for rock climbing, but I'm worried that the force of the cam will crack my stone steps. I then thought of drilling out a hole, filling it with epoxy, and then putting some 3/8" threaded stock into the hole and letting it dry. This would provide studs on which to bolt the stairs.
If epoxy is the way to go, is there a specific product that is recommended?
How is this usually done?
Best Answer
Something for your consideration, if you can have the railing modified or corrected. Don't mount it to the stairs at all if you absolutely don't need to, which you don't. If the railing hit's the house & overruns the bottom step or is long enough. Attach it to the building's exterior wall & the ground or pavement at the bottom of the stairs.
Bridging the stairs is one of the proper ways to do a short railing. The other way is for stairs that closely match the width of the door. The railing only stands next to the stairs but is attached to & into the ground's pavement.