Stud Spacing

Maximum stud spacing for Standard or better-grade studs is shown in Figure A. Lower-grade 2x4 studs cannot exceed 16 in. o.c.

Figure A: Maximum Stud Spacing (in.)
Stud Size 2x4 2x6
Supporting Roof and Ceiling Only 24 1 24
Supporting One Floor Roof and Ceiling 16 24
Supporting Two Floors Roof and Ceiling - 16
  1. Shall be reduced to 16 inches if Utility grade studs are used. Adapted from IRC Table R-602.3(5)

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