Can I drill a hole through a floor 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 do you drill a hole in a shower drain?





Quote from the video:
Quote from Youtube video: Into the pea trap right. So this little tool goes on to a drill. And it's serrated on the side there. So you just put it in there. And you turn on your drill.

How big of a hole can you drill in a 2×10 floor joist?

The maximum allowable diameter of a hole in any solid-lumber joist is one-third of the joist’s depth. Notches can’t be deeper than one-sixth of the joist depth. In the case of your 2×10 joists, the maximum diameter is 35⁄64 in.

What size hole Can I drill in a joist?

Maximum diameter of hole in any joist in any situation is 65mm.

Which type of joist has perforated knockouts?

Nordic I-joists provide knockout holes along the length of the joists to facilitate the installation of electrical wiring or light plumbing lines.

What size hole do I drill for a shower drain?





Shower Drain Hole Size



Most drains use 2-inch pipe, which means the subfloor will need a hole slightly larger than 2 inches for the drain to pass through once it is installed. Depending on the design of the drain body, the hole may need to be larger to incorporate other pieces.

How big of a hole do I need for a shower drain?

2″ Drain Pipe should be centered in a hole (approximately 5″ diameter) in the flooring. The top of the Pipe should be no higher than, and no more than 1/8″ lower than, the top surface of the floor on which the base will be set.

How big should a shower drain hole be?

Keep in mind that shower drain assemblies are generally made to fit a 2-inch drainpipe, not the 1 1/2-inch pipe usually found on tubs. A 2-inch pipe is the recommended size because showers have a low threshold for flooding, and a 2-inch pipe helps the water drain faster than does a 1 1/2-inch pipe.

What do you do when your shower drain falls on joist?

Quote from the video:
Quote from Youtube video: But realistically one of the best ways I've found to deal with this situation is to actually remove. The board that is in the way and place two on each side.

What is the minimum allowed distance between holes and notches?



100 mm

Holes and notches must be separated from one another by at least 100 mm. Holes in studs supporting brick veneer must be no closer than 50 mm from the outside face of the stud to allow sufficient depth for fixing brick ties.

Can you drill through roof rafters?

You should not drill, cut, or notch your attic trusses. These actions will significantly weaken your trusses.

Can you drill holes in roof joists?



The cutting, notching or drilling of trussed rafters is not generally permitted unless the Trussed Rafter Designer has allowed this for in the design.

How do you drill through ceiling joists?

When drilling holes in joists, always drill in the center of the joist itself.

  1. Holes drilled into joists should not have a diameter greater than 0.25 times the depth of the joist.
  2. When spacing holes, try not to put them closer together than 3 times the diameter of the holes.


What is the difference between a joist and a truss?

The joist supports the load which the floor is built to bear. A truss is used to support the roof.

Are trusses stronger than beams?



Trusses are much more suitable over long spans then solid beams due to the direction and type of force that they contain. As mentioned, truss members are connected through pin joints that mean there is no internal shear and moment forces, and the forces are applied axially to the member.

Are trusses stronger than joists?

Pros: Span longer distances than traditional joists, removing the need for walls in some areas. Lighter weight. Stronger than traditional joists.

How much do I joists cost?

I-Joists, LVL Beams & Glue Lams

We cut custom lengths, use $/ LF
9 1/2″ $5.47 $109.44
11 7/8″ $6.18 $123.53
16″ $8.36 $167.15
RIM BOARDS 16 FT

How long can I-joist span?

With these factors, the lightest joist will have a maximum span of 17 feet, 8 inches. This is the most common as the typical span is 15 feet. The heaviest joist, along with the above factors, will span a maximum of 23 feet, 8 inches.

Are I-joists cheaper?



I-beams are increasingly taking over in new residential construction. In new construction, it is cheaper to use engineered joists in some cases. For instance, it is possible to use half the number of I-beams compared to 2x10s since I-beams can span further with center support.