ICC Subscriptions
 
R602.7.1 Single member headers.
Single headers shall be framed with a single flat 2-inch-nominal (51 mm) member or wall plate not less in width than the wall studs on the top and bottom of the header in accordance with Figures R602.7.1(1) and R602.7.1(2).

TABLE R602.7.1 SPANS FOR MINIMUM No.2 GRADE SINGLE HEADERa, b, c, f


SINGLE
HEADERS
SUPPORTING
SIZE WOOD SPECIES GROUND SNOW LOAD (psf)
20d 30 50
Building Width (feet)e
20 28 36 20 28 36 20 28 36
Roof and ceiling 2 × 8 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
4-10
5-1
5-3
4-2
4-4
4-6
3-8
3-10
4-0
4-3
4-6
4-7
3-8
3-10
3-11
3-3
3-5
3-6
3-7
3-9
3-10
3-0
3-2
3-3
2-8
2-10
2-11
2 × 10 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
6-2
6-6
6-8
5-3
5-6
5-8
4-8
4-11
5-1
5-5
5-8
5-10
4-8
4-11
5-0
4-2
4-4
4-6
4-6
4-9
4-11
3-11
4-1
4-2
3-1
3-7
3-9
2 × 12 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
7-6
7-10
8-1
6-5
6-9
6-11
5-9
6-0
6-2
6-7
6-11
7-2
5-8
5-11
6-1
4-5
5-3
5-5
5-4
5-9
5-11
3-11
4-8
5-1
3-1
3-8
4-6
Roof, ceiling and
one center-bearing floor
2 × 8 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
3-10
4-0
4-1
3-3
3-5
3-7
2-11
3-1
3-2
3-9
3-11
4-1
3-3
3-5
3-6
2-11
3-0
3-1
3-5
3-7
3-8
2-11
3-0
3-2
2-7
2-8
2-9
2 × 10 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
4-11
5-1
5-3
4-2
4-5
4-6
3-8
3-11
4-1
4-10
5-0
5-2
4-1
4-4
4-5
3-6
3-10
4-0
4-4
4-6
4-8
3-7
3-11
4-0
2-10
3-4
3-7
2 × 12 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
5-8
5-11
6-1
4-2
4-11
5-3
3-4
3-11
4-8
5-5
5-10
6-0
4-0
4-9
5-2
3-6
4-2
4-10
4-9
5-5
5-7
3-6
4-2
4-10
2-10
3-4
4-3
Roof, ceiling and
one clear span floor
2 × 8 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
3-5
3-7
3-8
2-11
3-1
3-2
2-7
2-9
2-10
3-4
3-6
3-7
2-11
3-0
3-1
2-7
2-8
2-9
3-3
3-5
3-6
2-10
2-11
3-0
2-6
2-7
2-9
2 × 10 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
4-4
4-7
4-8
3-7
3-11
4-0
2-10
3-5
3-7
4-3
4-6
4-7
3-6
3-10
4-0
2-9
3-3
3-6
4-2
4-4
4-6
3-4
3-9
3-10
2-7
3-1
3-5
2 × 12 Spruce-Pine-Fir
Hem-Fir
Douglas-Fir or Southern Pine
4-11
5-6
5-8
3-7
4-3
4-11
2-10
3-5
4-4
4-9
5-6
5-7
3-6
4-2
4-10
2-9
3-3
4-3
4-6
5-4
5-6
3-4
3-11
4-8
2-7
3-1
4-2

For SI: 1 inch=25.4 mm, 1 pound per square foot = 0.0479 kPa.
a. Spans are given in feet and inches.
b. Table is based on a maximum roof-ceiling dead load of 15 psf.
c. The header is permitted to be supported by an approved framing anchor attached to the full-height wall stud and to the header in lieu of the required jack stud.
d. The 20 psf ground snow load condition shall apply only when the roof pitch is 9:12 or greater. In conditions where the ground snow load is 30 psf or less and the roof pitch is less than 9:12, use the 30 psf ground snow load condition.
e. Building width is measured perpendicular to the ridge. For widths between those shown, spans are permitted to be interpolated.
f. The header shall bear on a minimum of one jack stud at each end.





FIGURE R602.7.1(1) SINGLE MEMBER HEADER IN EXTERIOR BEARING WALL






FIGURE R602.7.1(2) ALTERNATIVE SINGLE MEMBER HEADER WITHOUT CRIPPLE