`WALL
`
`Bearing wall rules
`■ Notches may not
`exceed 25 percent of
`the stud’s width (7/8 in.
`maximum in 2x4s;
`1-3/8 in. maximum in
`2x6 walls).
`■ Holes may not
`exceed 40 percent of
`the stud’s width
`(1-3/8 in. maximum in
`2x4s; 2-1/4 in. maxi-
`mum in 2x6s).
`■ The exception: Holes
`up to 60 percent of the
`stud’s width may be
`drilled through no more
`than two consecutive
`“doubled-up” studs.
`
`NON-BEARING
`WALL
`
`Non-bearing
`wall rules
`■ Notches may not
`exceed 40 percent of the
`stud’s width (1-7/16 in.
`maximum in 2x4s;
`2-1/8 in. maximum in
`2x6s).
`■ Holes may not exceed
`60 percent of the stud’s
`width (2-1/8 in. maxi-
`mum in 2x4s; 3-1/4 in.
`maximum in 2x6s).
`
`1-1/4"
`
`REINFORCE-
`MENT PLATE
`
`PROTECTIVE
`PLATE
`
`Electrical rules
`■ Edges of holes for electrical wires must be
`1-1/4 in. from the edge of a stud.
`■ Areas where edges of holes are closer than
`1-1/4 in. must be covered by a protective plate.
`
`http://hostedmedia.reimanpub.com/TFH/Attachments/FH00JUN_NOTBOR_01.pdf
`downloaded 6/27/2014 at 1:45 PM
`
`Exhibit 2003
`Zimmer v.
`Bonutti Skeletal
`Innovations LLC
`Trial IPR 2014-00191
`
`