Question

4 Building codes typically require 7 inches in rise for every 11 inches in tread for standard stairs. Although stairs can have up to 8 inches in rise and 12 inches in tread each change makes the stairs less comfortable to navigate. In a new home being built. the builder needs to construct stairs to code for a lower deck. The dimensions of the full staircase will be 70 inches vertically and 110 inches horizontally. 70" 110 a. Find the slope of the overall staircase. b. Find the slope of each step. c. If a banister runs diagonally the full length of the staircase, find its length in feet and inches. 5. Guidelines for wheelchair ramps used inside and outside of buildings specify a preferred slope of 1:20, but 1:16 and 1:12 are also allowable. Which ramp slope is steepest, and which is flattest? Explain your choice.

Answer 1