How to Frame a Wall With Non-Square Corners

Most wall-framing jobs use simple 90-degree square corners. But if your plans call for framing corners with larger or smaller angles, you'll need to employ some different techniques to join the walls at the corners. But by employing the same principles used in simpler framing jobs, you can do an effective job of framing your non-square corners.

Chalk line
2-by-4-inch lumber
Tape measure
Circular saw
10d nails
Hammer
Drill
Lag bolts
Socket wrench
Insulation
Miter box
Miter saw
1-inch framing lumber (1-by-4 or 1-by-6)
8d nails

Instructions

- 1
  Snap a chalk line onto the subfloor to delineate the front edges of the converging walls. Measure the width and height of each wall.
- 2
  Build two frame walls from 2-by-4 lumber to match the dimensions you've recorded, utilizing regular frame wall-building techniques.
- 3
  Raise and slide each wall into position, placing the front edge of each wall even with the chalk lines. Make sure the inside edges of each of the walls' vertical studs are touching at the corner. Drill holes through bottom plates and into the subfloor halfway between each vertical stud and secure the frames through the holes with lag bolts.
- 4
  Cut short pieces of 2-by-4 to fit into the angle behind where the two walls meet. Place these pieces horizontally every 12 inches, cutting each with a miter saw so the ends of the wood blocks fit flush against the studs. Nail the blocks to the studs with two 8d nails on each side.
- 5
  Fill the space in the corner with insulation. Measure and cut 1-inch board stock to fit across the open gap behind the corner. Angle cut the edges of the boards so the edges fit flush against the studs. Nail these boards into the studs with 8d nails.

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