Not unless they are 2×12 floor joists and it goes exactly through the center. The maximum permissible boring in a floor joist is limited to 1/3 of the height of the joist (with a 2″ minimum).
How big of a hole can you drill in a 2×8 joist?
2 3⁄8 inches
In addition, the hole’s diameter is limited to one-third the depth of the material. In a 2×8, for example, the maximum hole diameter is 2 3⁄8 inches (actual rather than nominal dimensions should be used to make these calculations).
How do you drill through ceiling joists?
When drilling holes in joists, always drill in the center of the joist itself.
- Holes drilled into joists should not have a diameter greater than 0.25 times the depth of the joist.
- When spacing holes, try not to put them closer together than 3 times the diameter of the holes.
How much can you notch from a joist?
35mm
Maximum depth of notch of any joist in any situation is 35mm.
How do you reinforce joists with holes?
Quote from the video:
Quote from Youtube video: Horizontal. For something like this and then just use some bolts bolt. The pieces. Together. You could always stagger the bolts to it's real common for an engineer to have two at the end.
