Stairs In Section
Plan and cross section views of stairs.
Stairs in section. Nonuniform riser dimensions of aisle stairs complying with section 1025 11 2. Arrangement the geometrical shape of stair depends on functional usage number of floor and size of the staircase space. These regulations extend to handrail requirements on handicapped units that are occupied with tenants who require handrails as a result of disabilities and for.
See more ideas about stairs design architecture drawing section drawing. Mm walk line within any flight of stairs shall not exceed the smallest by more than 0 375 inch 9 5 mm measured at a right angle to the tread s leading edge. The stringer is the entire sawtooth shaped member upon which risers and tread rest.
Stairs and spiral staircase in plan frontal and side elevation view cad blocks. Consistently shaped winders complying with section 1009 3 differing from rectangular. A riser is the vertical measurement of each stair.
Continuous handrails are required on the side of where the tread is narrower for winders. Common stairway terms stringer. To provide the coming down and rising from any surface to another is the common property of stairs.
Free dwg models of stairs in plan and elevation view. Maximum 4 1 2 inch handrail projection into stairway width on either side. Section 8 a housing program operated by the united states department of housing and urban development hud imposes mandatory regulations for hud approved houses and apartments.
So this basically sums up the basic code requirements for residential stairs and their dimensions. Risers can either be enclosed or left open as in deck stairs. Therefore handrails are not required on landings though guardrails might be if the landing is open ed.