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// CODE SNIPPET

302.3 Cutting, Notching and Boring in Wood Framing

Mechanical Code 2012 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing
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The cutting, notching and boring of wood framing members shall comply with Sections 302.3.1 through 302.3.4.

302.3.1 Joist Notching

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.

302.3.2 Stud Cutting and Notching

In exterior walls and bearing partitions, any wood stud is permitted to be cut or notched not to exceed 25 percent of its depth. Cutting or notching of studs not greater than 40 percent of their depth is permitted in nonbearing partitions supporting no loads other than the weight of the partition.

302.3.3 Bored Holes

A hole not greater in diameter than 40 percent of the stud depth is permitted to be bored in any wood stud. Bored holes not greater than 60 percent of the depth of the stud are permitted in nonbearing partitions or in any wall where each bored stud is doubled, provided not more than two such successive doubled studs are so bored. In no case shall the edge of the bored hole be nearer than 0.625 inch (15.9 mm) to the edge of the stud. Bored holes shall not be located at the same section of stud as a cut or notch.

302.3.4 Engineered Wood Products

Cuts, notches and holes bored in trusses, structural composite veneer lumber, structural glue-laminated members and 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.

Related Code Sections


302.3 General Regulations, Cutting, Notching and Boring in Wood Framing
The cutting, notching and boring of wood framing members shall comply with Sections 302.3.1 through 302.3.4 ...
Mechanical Code 2012 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing
302.3 General Regulations, Cutting, Notching and Boring in Wood Framing
The cutting, notching and boring of wood framing members shall comply with Sections 302.3.1 through 302.3.4 ...
Mechanical Code 2015 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing
302.3.3 General Regulations, Bored Holes
A hole not greater in diameter than 40 percent of the stud depth is permitted to be bored in any wood stud. Bored holes not greater than 60 percent ...
Mechanical Code 2012 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing > 302.3.3 Bored Holes
302.3.4 General Regulations, Engineered Wood Products
Cuts, notches and holes bored in trusses, structural composite veneer lumber, structural glue-laminated members and I-joists are prohibited except ...
Mechanical Code 2012 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing > 302.3.4 Engineered Wood Products
302.3.4 General Regulations, Engineered Wood Products
Cuts, notches and holes bored in trusses, structural composite lumber, structural glue-laminated members and I-joists are prohibited except where ...
Mechanical Code 2015 of Kentucky > 3 General Regulations > 302 Protection of Structure > 302.3 Cutting, Notching and Boring in Wood Framing > 302.3.4 Engineered Wood Products
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