Steel stairs offer certain benefits over wood that can fit the modernist design ethos; less mass, open risers and longer unsupported spans are but a few.
Stair stringer layout
Finished stringer Stair stringer layoutFinished stringer
One piece stair and rail
A novel solution to a utility stair; lightweight angle iron
Pultruded treads for a sure grip
Perfo-grip treads are also ideal for exterior use