Identifying Unacceptable Riser and Tread Variations — Account for Any Major Differences
Part of project
Stair Tread Depth Measurement · Step 4 of 4
In this video
The video then illustrates an unacceptable scenario where a riser is raised to 7 3/8 inches. This creates a 1/2-inch difference from the smallest 6 7/8-inch riser, which exceeds the 3/8-inch maximum allowed by code. The same principle applies to tread depths, with a half-inch difference between the smallest (10 3/4") and largest (11 1/4") tread being unacceptable if the maximum variation is 3/8 inch. It then shows a scenario where treads vary from 10 7/8 inches to 11 1/16 inches, which would be acceptable as the difference is less than 3/8 inch.
Identifying Unacceptable Riser and Tread Variations — Account for Any Major Differences
Part of project
Stair Tread Depth Measurement · Step 4 of 4
In this video
The video then illustrates an unacceptable scenario where a riser is raised to 7 3/8 inches. This creates a 1/2-inch difference from the smallest 6 7/8-inch riser, which exceeds the 3/8-inch maximum allowed by code. The same principle applies to tread depths, with a half-inch difference between the smallest (10 3/4") and largest (11 1/4") tread being unacceptable if the maximum variation is 3/8 inch. It then shows a scenario where treads vary from 10 7/8 inches to 11 1/16 inches, which would be acceptable as the difference is less than 3/8 inch.