Recommended Stair Tread Depth
Many state laws require tires to have a minimum tread depth of at least 2 32 in order to be road legal.
Recommended stair tread depth. With numerous stair calculators available figuring rise and run dimensions is easy. Tread depth is important. Adapted from california title 8 ch. The greatest tread depth within a flight of stairs cannot be more than 3 8 inch larger than the smallest tread depth.
Deck stair layout 101 deck stair layout is simple right. Laying out basic stair stringers to ensure level tread cuts and plumb riser cuts on stair stringers it s crucial to get the layout right. Most tires are sold with a tread depth of 10 32 to 12 32 of an inch. The 2x6 treads actually 5 1 2 in depth are exactly 1 2 of the recommended tread depth and are covered with algae that will be hysterically slippery when wet.
Tires at or above the recommended tread depth give you better traction in all types of driving conditions. Many tires have wear bars built in so it is easy to spot how and where tread life is beginning to diminish. Stair tread depth is more of an issue for descending rather than ascending stairs. At stairway slope or angle stair tread slope we describe the maximum as well as recommended stairway angles or slopes and we explain how individual step dimensions step rise and step tread depth or horizontal run translate into stairway angle.
Probably right unless it s the first time you ve tackled the task.