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cibula11 01-22-2007 07:06 PM

Knee/Pony Wall
As you go upstairs into my finished attic space (currently unfinished) I would like to build a knee wall that will act as a railing on one side. My question is how should I attach this. I have heard that I can attach the posts to the floor joists, but the wall that I will be constructing with run parallel to the joists. How can I strengthen the wall and what height should it be?

cibula11 01-23-2007 10:43 AM

Just wondering how I can give added support to a knee wall. I don't want it to be wobbly. One side will attach to the wall and the other will jut out and not be attached to anything. I don't really want to have to build a post that extends to the ceiling as I am trying to keep the space as open as possible.

AtlanticWBConst. 01-23-2007 06:01 PM

As mentioned, attach your 4x4 posts to the floor joists, make sure that you lag bolt them. You can also attach the ends of the wall to the ceiling structure to create greater stability.

Additional ways to create strength and stability for a half wall:

Use long screws to assemble instead of nails.
Double up all bottom and top plates.
Double up end studs.
Make sure that you overlap doubled studs and plates.
You can sandwich sheets of plywood over the half wall.
Use 5/8" Sheetrock over it.
Use 'L' and 'T' brackets to 'lock' connection areas.

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