We are finishing our basement stairs, and I'm struggling with how to drywall the side that is parallel and flush against the foundation. Should I pull down the stairs, frame the wall, hang drywall, and put them back up? Or can I just frame against the foundation and stairs and let the drywall tie into the stairs? I don't care what it looks like below the stairs because it will be a cedar lined closet.

We also don't plan on framing a full wall here because the stairs are already narrow and we can't spare the space. We planned on using 1*2 stock attached to the foundation, and securing the drywall to that.

basement stairs

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    A picture of the situation would help. In my jurisdiction you must install 1 hour firewall (Type X plasterboard or other suitable fire-resistant finish) under stairs if the space underneath is going to remain accessible... – Jimmy Fix-it Jul 14 at 0:43
  • Updated with photo – Lee Harrison Jul 14 at 0:53
  • Good call on the fire rating, I'll put up a piece of type x before finishing it with cedar – Lee Harrison Jul 14 at 0:58

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