Question 1

How many studs do I need for a wall?

Accepted Answer

Divide wall length (in inches) by stud spacing (16" or 24"), then add 1. Add extra studs for each corner (3 per corner), and king/jack studs for each opening.

Question 2

What spacing should I use — 16" or 24" OC?

Accepted Answer

16" OC is standard for load-bearing walls and most residential construction. 24" OC is allowed for non-load-bearing walls and some advanced framing methods to save materials.

Question 3

How do I calculate headers?

Accepted Answer

Headers span above doors and windows. For openings up to 4ft, use doubled 2x6. For 4-6ft, use doubled 2x8. For 6-8ft, use doubled 2x10. Each header needs 2 king studs and 2 jack studs.

Question 4

How many sheets of subfloor do I need?

Accepted Answer

Divide total floor area by 32 sq ft (4x8 sheet). Add 10% for waste and cuts. Standard subfloor is 3/4" tongue-and-groove OSB or plywood.

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