The IRC specifies that stair treads should be constructed from 2 x 6 lumber. If the treads are 36 inches long, you can support them with two solid stringers, but if you're using sawn stringers, you'll need three. Check Before You Build Even if you're pretty sure you have a handle o...
Also discussed: Different dimensions for open versus closed riser stairways, stair safety hazards, photos of defects & we include sketches of stair design requirements. We explain stair riser calculations: how to compute custom stair tread & risers based on stair rise & run measurements. We also...
horizontal parts of a stairway, and risers are the vertical parts of the stairway that link the treads. In a stairway, risers must not be greater than 8 3/4 inches in height, and must not vary by more than 3/8 inch in height. The depth of a tread, meaning the...
provided.Ifthe seatandplatformcanbefoldedwhennotinuse,thedistanceshallbemeasured fromthefoldedposition. 1009.7Stairtreadsandrisers.StairtreadsandrisersshallcomplywithSections 1009.7.1through1009.7.5.3. 1009.7.1Dimensionreferencesurfaces.… 1009.7.2Riserheightandtreaddepth.Stairriserheightsshallbe7inches(178 mm...
Stair fall protection, stair engineering, and slip resistance List of building codes and standards for stairs The various building codes and standards for stairs address the different uses, applications, building occupancy types, and design requirements for stairways. The stair standards and codes along...
The OSHA stair landing clearance code is not explicitly stated in the code, but can be interpreted to be the same 80 inches as for a stairway because the definition of a stairway in section 1910.21 includes any landings and platforms between the risers and treads. Residential stair head cleara...