IBC 2308.8.2 Framing details.
Joists shall be supported laterally at the ends and at each support by
solid blocking except where the ends of the joists are nailed to a
header, band or rim joist or to an adjoining stud or by other means.
Solid blocking shall not be less than 2 inches (51mm) in thickness and
the full depth of the joist. Notches on the ends of joists shall not
exceed one-fourth the joist depth. Holes bored in joists shall not be
within 2 inches (51 mm) of the top or bottom of the joist, and the
diameter of any such hole shall not exceed one-third the depth of the
joist. Notches in the top or bottom of joists shall not exceed
one-sixth the depth and shall not be located in the middle third of
the span.
IRC R502.8 Drilling and notching.
Structural floor members shall not be cut, bored or notched in excess
of the limitations specified in this section. See Figure R502.8.
IRC R502.8.1 Sawn lumber.
Notches in solid lumber joists, rafters and beams shall not exceed
one-sixth of the depth of the member, shall not be longer than
one-third of the depth of the member and shall not be located in the
middle one-third of the span. Notches at the ends of the member shall
not exceed one-fourth the depth of the member. The tension side of
members 4 inches (102 mm) or greater in nominal thickness shall not be
notched except at the ends of the members. The diameter of holes bored
or cut into members shall not exceed one-third the depth of the
member. Holes shall not be closer than 2 inches (51 mm) to the top or
bottom of the member, or to any other hole located in the member.
Where the member is also notched, the hole shall not be closer than 2
inches (51 mm) to the notch.
IRC R502.8.2 Engineered wood products.
Cuts, notches and holes bored in trusses, laminated veneer lumber, gluelaminated members or I-joists are not permitted unless the effects
of such penetrations are specifically considered in the design of the
member.
IRC R602.6 Drilling and notching - studs.
Any stud in an exterior wall or bearing partition may be cut or
notched to a depth not exceeding 25 percent of its width. Studs in
nonbearing partitions may be notched to a depth not to exceed 40
percent of a single stud width. Any stud may be bored or drilled,
provided that the diameter of the resulting hole is no greater than
40 percent of the stud width, the edge of the hole is no closer than
5/8 inch (15.9 mm) to the edge of the stud, and the hole is not
located in the same section as a cut or notch. See Figures R602.6(1)
and R602.6(2).
Exceptions:
A stud may be bored to a diameter not exceeding 60 percent of its width, provided that such studs located in exterior walls or bearing
partitions are doubled and that not more than two successive studs are
bored.
Approved stud shoes may be used when installed in accordance with the manufacturers recommendation.
IRC R602.6.1 Drilling and notching of top plate.
When piping or ductwork is placed in or partly in an exterior wall or
interi- or load-bearingwall, necessitating cutting, drilling or
notching of the top plate by more than 50 percent of its width, a
galvanized metal tie of not less than 0.054 inches thick (1.37mm)
(16ga) and 11/2 inches (38mm) wide shall be fastened to each plate
across and to each side of the opening with not less than eight 16d
nails at each side or equivalent. See Figure R602.6.1.
Exception: When the entire side of the wall with the notch or cut is covered by wood structural panel sheathing
IRC R802.7 Cutting and notching.
Structural roof members shall not be cut, bored or notched in excess
of the limitations specified in this section.
IRC R802.7.1 Sawn lumber.
Notches in solid lumber joists, rafters and beams shall not exceed
one-sixth of the depth of the member, shall not be longer than
one-third of the depth of the member and shall not be located in the
middle one-third of the span. Notches at the ends of the member shall
not exceed one-fourth the depth of the member. The tension side of
members 4 inches (102 mm) or greater in nominal thickness shall not be
notched except at the ends of the members. The diameter of the holes
bored or cut into members shall not exceed one-third the depth of the
member. Holes shall not be closer than 2 inches (51mm) to the top or
bottom of the member, or to any other hole located in the member.
Where the member is also notched, the hole shall not be closer than
inches (51 mm) to the notch.
Exception: Notches on cantilevered portions of rafters are permitted provided the dimension of the remaining portion of the
rafter is not less than 4-inch nominal 102
mm) and the length of the cantilever does not exceed 24 inches (610mm).
IRC R802.7.2 Engineered wood products.
Cuts, notches and holes bored in trusses, structural composite lumber,
structural glue-laminated members or I-joists are prohibited except
where permitted by the manufacturer’s recommendations or where the
effects of such alterations are specifically considered in the design
of the member by a registered design professional.
Best Answer
No. Since the band (rim) joist is continuously supported by the foundation wall, the boring and notching rules do not apply. You will, however, want to use common sense. Try not to notch or bore directly under a window or door, especially right where the king/jack studs are. You also don't want to notch or bore the entire width of the joist, in other words don't remove a section of the rim joist.
You'll notice the rim joist is a common place for dryer vents, furnace vents, electrical service cables, and other utility openings. This is due to the lack of notching and boring guidelines, which accommodates the placing of such openings.