Stair Design Guide: Difference between revisions

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Original step design - [[File:stairs.fcstd]]
=2022 Working Doc=


<html> <iframe src="https://docs.google.com/presentation/d/e/2PACX-1vQO2wRsNE9CoxflTQ8pOgC17qKLZ7FnqMUvas5S_5CdB7mxekjVnU3PUyCXeynoTTyk4JSQJyIUgjKJ/embed?start=false&loop=false&delayms=3000" frameborder="0" width="480" height="389" allowfullscreen="true" mozallowfullscreen="true" webkitallowfullscreen="true"></iframe> </html>


==Stairway for SeedHome v2==
[https://docs.google.com/presentation/d/1PVthbAE4RLofESfE-zPzF8QrbQlbA4nnpEpSbuGXxLs/edit#slide=id.g161b0a00624_0_16 edit]


[[File:stairs_test.png|100px]]
=2022 Version=
[[File:house_w_stairs.png|100px]]
We went from 2-'stringer'-blocking design (of [[2021 Stair Design Guide]]) to regular, 3-stringer design.


<gallery perrow=6 >


We have 121.125" to the top of the 2nd story flooring from the top of the sill, then we need to add 1.5" for the sill, which makes the total rise 122.625"
File:workginlandingdetail.png|'''Working landing utility channel detail.'''  [[File:workginlandingdetail.fcstd]].  


The stair landing takes care of 6.25" (5.5" 2x6 plus 3/4" planks), so the stairway needs to rise 116.375"


'''UPDATE: As-built the landing used 2x8s instead of 2x6s, so it is 8" high (7.25" 2x8 plus 3/4" planks), which reduces the needed stair rise by 1.75"'''
File:staires.png|'''Stairs.''' [[File:seh2stairs.fcstd]]. See [https://docs.google.com/presentation/d/1N1lS8RBMy0Y0JnR_h1tz23CYFoR5zespNG4T5m4nnZE/edit#slide=id.gd0d0ba6c1a_0_0] for Stair Design Guide - with stringers.


File:seh4landing.png|'''Landing.''' [[File:seh4landing.fcstd]]. SEH 2 version at [[File:Landing.fcstd]]


15 steps of 7-3/4" (the maximum allowed by code) is 116.25"
</gallery>
=Build=
How to cut stringer:
*Make a jig - https://www.youtube.com/watch?v=ln8N0ctWLMg. For standardized stairs doable by a novice - can't beat the simplicity.
*Author justs marks for 7 steps


15 steps of 7-5/8" provides 114.375"
<html><iframe width="560" height="315" src="https://www.youtube.com/embed/ln8N0ctWLMg" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>


Simpson version of stringer hanger:


<html><iframe width="560" height="315" src="https://www.youtube.com/embed/XS4NAqsoOyE" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>


Steps are 42.125" wide, 11.25" deep


More:


===Stairs with 7 3/4" rise===
<html><iframe width="560" height="315" src="https://www.youtube.com/embed/iALK0-n-81c" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
[[File:stairs_detail.fcstd]] - Detailed design file


[[File:stairs_simple.fcstd]] - Simple object with approximate position for merge into master
=BOM=
*Mitek - [https://www.menards.com/main/hardware/fasteners-connectors/construction-hardware/miscellaneous-connectors/mitek-reg-5-x-9-3-4-triple-zinc-concealed-stringer-hanger/csh-tz/p-1444445471577-c-8865.htm]
*Simpson - [https://www.lowes.com/pd/Simpson-Strong-Tie/5013278905?cm_mmc=shp-_-c-_-prd-_-bdm-_-ggl-_-LIA_BDM_103_Roofing-Gutters-_-5013278905-_-local-_-0-_-0&ds_rl=1286981&gclid=CjwKCAjws--ZBhAXEiwAv-RNL-1P3mbgrmpHmuZJzpp9IfvBa0AGI9QQqs-8_vrzvIzYfp6lUZBaChoC-kIQAvD_BwE&gclsrc=aw.ds]
*https://www.menards.com/main/building-materials/lumber-boards/dimensional-lumber/2-x-12-1-southern-yellow-pine-construction-framing-lumber/1022190/p-1444422422543-c-13125.htm


===Stairs with a 7 5/8" rise===
=Prior Art=
[[File:7_625_stairs_detail.fcstd]] - Detailed design file
*[[Stair Design Guide]]
*[[Seed Eco-Home 2 Stairs]]
*From [[House Design Guide]] - [https://docs.google.com/presentation/d/1N1lS8RBMy0Y0JnR_h1tz23CYFoR5zespNG4T5m4nnZE/edit#slide=id.gd0d0ba6c1a_0_0]
*[[Stair_Design_Guide#Working_Doc]]


[[File:7_625_stairs_simple.fcstd]] - Simple object for merge
=Future Work=
*3D printed stringers make life digital, and could be used as templates.


[[File:stairs_example.png|100px]]
=Links=
 
*[[FreeCAD Stair Designer]].
[[File:7_625_stairs_example.fcstd]] - First floor partial
*[[House Design Guide]] has general design notes - specifically {{check}} [https://docs.google.com/presentation/d/1N1lS8RBMy0Y0JnR_h1tz23CYFoR5zespNG4T5m4nnZE/edit#slide=id.gd0d0ba6c1a_0_0 here]
*[[2021 Stair Design Guide]] - work prior to using regular stringers, which turns out to be easier to build after all.

Latest revision as of 01:03, 10 October 2022

2022 Working Doc

edit

2022 Version

We went from 2-'stringer'-blocking design (of 2021 Stair Design Guide) to regular, 3-stringer design.

Build

How to cut stringer:

Simpson version of stringer hanger:


More:

BOM

Prior Art

Future Work

  • 3D printed stringers make life digital, and could be used as templates.

Links

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