It would be ok to notch or drill the end of the joist on a supporting member. Keep it in the middle or top section, not the bottom where it is bearing.
Can I drill through an end joist?
You can drill the holes anywhere along the length of the joist (first photo). If you have manufactured I-joists, you can drill holes up to 1-1/2 in. diameter almost anywhere in the web area (the area between the flanges).
How close to the end of a joist can you drill?
Don’t make any holes with a diameter greater than 1/3 the depth of a joist. ‘ No holes closer than 2 inches to the top or bottom edge. No holes closer than 2 inches to any other hole or notch.
Can you notch I-joists?
You can cut a notch at the end of the joist to 1/4 of the joist’s depth (maximum). Along the outer third of a joist, you can cut a notch a maximum of 1/6 the joist depth and 1/3 the joist length without compromising its strength.
Can you notch bottom of joist?
Joist Notching Rules
The maximum depth of a notch at the end of a joist (where it rests on a wall or beam) can’t exceed one-quarter of the joist depth. Maximum notch depth in the outer third of a joist is one-sixth of the joist depth.
What is the maximum depth a joist can be notched to?
Maximum depth of notch of any joist in any situation is 35mm. Size and position of holes must be within the zones shown in the diagram above and only on the centre line. Adjacent holes must be at least three times their diameter apart and no hole may be within 100mm (4”) of a notch.
How do you notch out a joist?
Quote from Youtube video: Apply. The other way of doing it is to put a hole through the joist. And you can put a hole through the joists. And you have to put the hole through the center line of the joist.
How big of a hole can you drill in a 2×8 floor 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).
