7. Thresholds at Doorways
Are the heights of thresholds at doorways 1/2 inch or less?
Note: Raised thresholds and level changes at doorways
with a height between 1/4 inch and 1/2 inch should be
Bevel with a maximum slope of 1:2 as shown in the top
figure.
Note: Existing or altered thresholds may be 3/4 inch high
maximum if their edges are bevel with a slope not
steeper than 1:2. See lower figure on the right.