Steel subtreads feature a type J riser profile filled with concrete and supported by locator angles factory attached to the stringers. The stair assembly is dimensioned with a maximum seven inch riser and an eleven inch nose to nose run. The riser height varies across the run of the stairs.
STEEL SUBTREAD 7" MAX RISER VARIES STEEL TYPE "J" RISER CONCRETE FILL LOCATOR ANGLE FACTORY ATT'D TO STRINGERS NOSE TO NOSE 11"
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