Old 03-11-02, 10:54 AM
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Question Stairs

How do you figure out how much space is needed for stairs. My basement will have 9ft walls, but I don't know how to plan how much room I'll need for head clearance going down the stairs.

Is there a set formula out there somewhere? Please help!!
Old 03-13-02, 07:33 AM
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ok, yes there is a formula for such a project.

take the total hight from the floor of the basement to the first floor Fb to F1 then devide it by 8 and round up the number. ie
fb to f1 = 103" / 8 = 12.8 or 13 steps, or 12 steps depending on your rise you want. just over 8 or just over 7.

then take the 12 steps and multiply it by the leanth of the tread, ie 10.5" = 126" add 1 tread, 136.5" is the opening leanth to meet most codes.

hope this helps

Old 03-14-02, 07:38 PM
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Just one more thing you need to take into consideration and this is a very important one. At some point going down your stairs and it will be near the bottom, you will go underneath a header.
This clearance must be 6' 8" from the front of the tread to the bottom of the header. No exceptions. Good Luck
Old 03-15-02, 07:11 AM
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Thanks guys, this was exactly what I was looking for!!

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