Old 10-22-00, 07:13 PM
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I'am going to attempt to build some stairs outside my backdoor of my mobile home. they will not be attached to the home. my problem is what kind & thickness of wood should i use.
Old 10-28-00, 05:33 PM
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Stair stringers, the pieces on either side that support the treads, are typically made from 2X10 or 2X12 material, depending on the pitch of the stairs. This material would also be suitable to support the high end of the stairs, since they will not be attached to your dwelling.

The treads can be either 1X or 2X material, depending on the width of the stairs themselves. If the stairs are more than 24 inches wide, use either 2X material or add a stringer in the center to support 1X treads.

You can determine the number of treads by dividing the height of the stairs by the pitch (angle). A height of 35 inches with a 7/12 pitch (standard) would mean 5 treads.


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