How to build safe stair stringers that don t sag squeak collapse or lose their treads.
Stair stringer throat thickness.
Timberstrand lsl stair stringers and sturdistep stair treads specifier s guide 9010 ember 2015sept 2 1 1 3e timberstrand lsl sairt stringers suggested residential stringer attachment details 40 psf live load and 12 psf dead load high end 1 minimum throat depths may be reduced by an additional for 117 8 and 14 material depths if 2x4 reinforcement is.
What made it more challenging is if you simply plugged the rise in to a construction calculator you would end up with 3 treads.
The width of the opening of the stairs.
According to standards the maximum height of stairs may not exceed 200 mm.
Usually 15 17 cm optimal width of a step 27 30 cm.
Stair stringer notching template.
If you plugged in the run 4 you would end up with 6 risers.
S and standard value in a private house taking 90 110 cm if space is limited a width of the opening sause the minimum critical value 80 cm.
Codes strength requirements for stair support systems.
Otherwise it is left to the builder s common sense experience and available rules of thumb to prevent the stringers for a 10 foot flight of stairs to be constructed from two 2x8s.
3 for 9 stringer 5 for 11 stringer 8 for 14 stringer.
For concrete stairs select concrete thickness and enter the throat thickness see diagram and stair width to calculate formwork dimensions and concrete volume.
This is a part of the plan that everyone got a simple stair stringer with 4 risers 4 treads.
Timberstrand lsl stair stringers and sturdistep stair treads specifier s guide 9010 september 2015 2 1 1 3e timberstrand lsl stair stringers suggested residential stringer attachment details 40 psf live load and 12 psf dead load high end 1 7minimum throat depths may be reduced by an additional for 11 8 and 14 material depths if 2x4 reinforcement is.
The height and width of the steps.
Might get shot for this but as i recall from wood framing days throat depth.
This article describes the construction and building code specifications for the support of residential stairways.