1'
1/3 span length
Area B
BEAM HOLE DETAILS
NOTES:
1. These guidelines apply to uniformly loaded beams selected from the Quick Reference Tables or the Uniform Load Tables
or designed with LP’s design/specification software only. For all other applications, such as beams with concentrated loads,
please contact your LP® SolidStart® Engineered Wood Products distributor for assistance.
2. Round holes can be drilled anywhere in “Area A” provided that: no more than four holes are cut, with the minimum spacing
described in the diagram. The maximum hole size is 1-1/2" for depths up to 9-1/4," and 2" for depths greater than 9-1/4."
3. Rectangular holes are NOT allowed.
4. DO NOT drill holes in cantilevers without prior approval from the project designer.
5. Other hole sizes and configurations MAY be possible with further engineering analysis. For more information, contact your
LP SolidStart Engineered Wood Products distributor.
6. Up to three 3/4" holes may be drilled in “Area B” to accommodate wiring and/or water lines. These holes shall be at least
12" apart. The holes shall be located in the middle third of the depth, or a minimum of 3" from the bottom and top of the
beam. For beams shallower than 9-1/4", locate holes at mid-depth.
7. Protect plumbing holes from moisture.
Area B
Area A
Minimum clear distance between holes is 2x diameter of larger hole
1'
Clear Span
1/3
beam
depth
LVL-AH
P