The framing sequence
After the foundation, work goes mudsill, floor framing, subfloor, wall framing, second-floor framing if applicable, roof framing, and roof sheathing. Each phase must be straight, plumb, and square before the next begins, or the errors compound.
Wall framing
Standard residential walls are 2x4 or 2x6 studs at 16 or 24 inches on center. Headers carry loads over openings; size depends on span and load. Top plates are doubled and overlap at corners and intersections. Bottom plates are sill-sealed and anchored to the foundation.
Sheathing and shear
Wall sheathing, usually 7/16 OSB or 1/2 plywood, ties the framing together and resists lateral loads from wind and earthquake. Nail pattern matters: typical schedules call for 8d nails at 6 inches on edge and 12 inches in the field. Specially engineered shear walls use tighter nailing and hold-downs.
Mini-quiz
Attempt 1 · 3 questions
Check your understanding. Passing is 70% — but you can keep going to the next lesson either way.
Question 1
Based on "The framing sequence", which statement is correct?
Question 2
Based on "Wall framing", which statement is correct?
Question 3
Based on "Sheathing and shear", which statement is correct?