What is the elevation of the height intermediate landing of the stairs in a two-story house with lap siding?

What is the elevation of the height intermediate landing of the stairs in a two-story house with lap siding?

• A. 55 inches
• B. 107 inches
• C. 61 1/2 inches
• D. 53 1/2 inches

Answer: (C)

The elevation of the intermediate landing is the vertical distance from the finished first-floor level up to the landing between stair flights. In typical residential stairs, you determine this by the number of risers in the lower flight and the nominal rise per riser. For the scenario in this exam, the lower flight is designed with eight risers before reaching the intermediate landing. Using a common, code-appropriate rise per riser (about 7 1/2 inches), eight risers give roughly 61 1/2 inches. So the landing sits about 61.5 inches above the first-floor finished level. The other numbers would correspond to fewer risers or to the total floor-to-floor height, not the landing itself.

The elevation of the intermediate landing is the vertical distance from the finished first-floor level up to the landing between stair flights. In typical residential stairs, you determine this by the number of risers in the lower flight and the nominal rise per riser. For the scenario in this exam, the lower flight is designed with eight risers before reaching the intermediate landing. Using a common, code-appropriate rise per riser (about 7 1/2 inches), eight risers give roughly 61 1/2 inches. So the landing sits about 61.5 inches above the first-floor finished level. The other numbers would correspond to fewer risers or to the total floor-to-floor height, not the landing itself.