Stair Design Guide: Difference between revisions

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m (Marcin moved page Stairs to Stair Design Guide)
(Replaced content with "=Links= *2021 Stair Design Guide - work prior to using regular stringers, which turns out to be easier to build after all.")
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=Working Doc=
=Links=
<html><iframe src="https://docs.google.com/presentation/d/e/2PACX-1vTqRG150jtj716f1uoLq5Fc5gHi-zlIlFp9YTlpkasSmCBXdUUngxOXE3Ku27TRtt6bRj1v3bu15bSM/embed?start=false&loop=false&delayms=3000" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html>
*[[2021 Stair Design Guide]] - work prior to using regular stringers, which turns out to be easier to build after all.
 
[https://docs.google.com/presentation/d/1njcdVX4-_W-M6kd0T02j-3yDSj9ovdJhDwG-EtjttKU/edit#slide=id.gecd7f9b683_0_5 edit]
 
=CAD=
 
Original design - [[File:stairs.fcstd]]
 
=Stairway for SeedHome v2=
 
[[File:stairs_test.png|100px]]
[[File:house_w_stairs.png|100px]]
[[File:stairs_example.png|100px]]
[[File:7_625_stairs_example.png|100px]]
 
==Step Size==
 
The steps are 42.125" wide and 11.25" deep with a 1.125" nosing
 
==Rise==
<html><iframe src="https://docs.google.com/presentation/d/e/2PACX-1vRSXCc6VMyQmjkIG7K6uXMiArpF7fCctNbtMV8ujjwE0s-sc3ToOwFa0GG36xSZvTufq923kJmJzUAh/embed?start=false#36" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe></html>
 
[https://docs.google.com/presentation/d/1CJRaF3Xoc79gxtwKkzjNjD2yxoNJOByv4RmiZbBI1Bg/edit#slide=id.gb328b2d63d_0_9 edit]
 
The top of the 2nd story flooring is 121.375" from the top of the sill. We also need to add 1.5" from the basement slab to the sill = 122.875" total rise
 
The actual stairway rise will depend on the height of the landing:
 
With 2x6s and 3/4" planks (6.25" total) it will need to be 116.625"
 
With 2x8s and 3/4" planks (8" total) it will need to be 114.875"
 
 
15 steps of 7-3/4" (the maximum allowed by code) is 116.25"
 
15 steps of 7-5/8" provides 114.375"
 
 
The landing or the top step can be adjusted to make up the difference
 
==CAD for Stairway with 7 3/4" rise==
[[File:stairs_detail.fcstd]] - Detailed design file - 7.75" rise
 
[[File:stairs_simple.fcstd]] - Simple object for merge
 
==CAD for Stairway with a 7 5/8" rise==
[[File:7_625_stairs_detail.fcstd]] - Detailed design file - 7.625" rise
 
[[File:7_625_stairs_simple.fcstd]] - Simple object for merge
 
[[File:7_625_stairs_example.fcstd]] - Example - SEH2 partial with Stairs
 
==FreeCAD workbench to generate stairs==
[[File:FreeCAD_Stairs_Workbench.zip]]
 
(Note: The generated steps need to be rotated 180 degrees for use in SEH2.  If you create a simple copy, you can set the placement angle to 180 deg and then adjust the x, y, and z position to position the stairs.  x=349.35" and y=186.125" should align them in the stairwell. Adjust z as needed to move them up or down to meet the landing.)

Revision as of 19:38, 9 October 2022

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