I have been offered a steel single stringer stair with 12 steps to which I would screw wooden treads.
The plate for the tread is 12 " (30.cm) long by 8"(20cm) with holes for 4 screws. The treads would be 30"(76cm) long by 8" 20 +cm wide but between 3/4" (1.90) and 1" (2.54) thick. A stainless steel hand rail would be screwed to the treads on one side.
I am a bit worried that the 8"(20cm) overlap either side of the plate which would not be directly supported by the plate might not be strong enough to take the weight of a person if they stood on it plus the handrail if only held up by the four 1/2 screws screwed into the wood from under the steel plate ?
Am I worrying unnecessarily and if so is there a way round it ?
The plate for the tread is 12 " (30.cm) long by 8"(20cm) with holes for 4 screws. The treads would be 30"(76cm) long by 8" 20 +cm wide but between 3/4" (1.90) and 1" (2.54) thick. A stainless steel hand rail would be screwed to the treads on one side.
I am a bit worried that the 8"(20cm) overlap either side of the plate which would not be directly supported by the plate might not be strong enough to take the weight of a person if they stood on it plus the handrail if only held up by the four 1/2 screws screwed into the wood from under the steel plate ?
Am I worrying unnecessarily and if so is there a way round it ?
