Page 280 - 2018_IRC

WALL CONSTRUCTION

KING STUD(S) CRIPPLE STUD

HEAD TRACK
TRACK OR C-SHAPE

JACK STUD(S)

C-SHAPES

FIGURE R603.6.1(1)
BOX BEAM HEADER IN GABLE ENDWALL

KING STUD(S) CRIPPLE STUD
HEAD TRACK

2 IN. x 2 IN. CLIP ANGLE

JACK STUD(S)

C-SHAPES

For SI: 1 inch = 25.4 mm.
FIGURE R603.6.1(2)
BACK-TO-BACK HEADER IN GABLE ENDWALL

1
R603.7 Jack and king studs. The number of jack and king header minus / inch (12.7 mm) and shall have a mini-
2
studs installed on each side of a header shall comply with mum thickness not less than that of the wall studs. Jack
Table R603.7(1). King, jack and cripple studs shall be of the and king studs shall be interconnected with structural
same dimension and thickness as the adjacent wall studs. sheathing in accordance with Figures R603.6(1) and
Headers shall be connected to king studs in accordance with R603.6(2).
Table R603.7(2) and the following provisions: R603.8 Head and sill track. Head track spans above door
1. For box beam headers, one-half of the total number of and window openings and sill track spans beneath window
required screws shall be applied to the header and one- openings shall comply with Table R603.8. For openings less
half to the king stud by use of C-shaped or track mem- than 4 feet (1219 mm) in height that have both a head track
ber in accordance with Figure R603.6(1). The track or and a sill track, multiplying the spans by 1.75 shall be permit-
C-shaped sections shall extend the depth of the header ted in Table R603.8. For openings less than or equal to 6 feet
1
minus / inch (12.7 mm) and shall have a minimum (1829 mm) in height that have both a head track and a sill
2
thickness not less than that of the wall studs. track, multiplying the spans in Table R603.8 by 1.50 shall be
permitted.
2. For back-to-back headers, one-half the total number of
screws shall be applied to the header and one-half to the R603.9 Structural sheathing. Structural sheathing shall be
king stud by use of a minimum 2-inch by 2-inch (51 mm installed in accordance with Figure R603.9 and this section
by 51 mm) clip angle in accordance with Figure on all sheathable exterior wall surfaces, including areas above
R603.6(2). The clip angle shall extend the depth of the and below openings.

2018 INTERNATIONAL RESIDENTIAL CODE ® 255
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