Holes anywhere in the web area of engineered i joists except within 6 in.
Drilling floor joists for pex.
There is a side to this that i have discussed with inspectors.
Where and how to drill joists for electrical cables or.
Drilling floor joists to run plumbing wiring or ducts can be tricky.
If you re running pex through joists or studs drill 3 4 in.
Place the bit up to the stud and slowly start the drill allowing it to build up speed.
If the span requires say a 2x 10 joist spanning 12 the above rules apply.
Let s review what is wrong with this particular joist and discuss what the proper technique is for.
Away from the top and bottom.
Drill through the sill plate and sub floor for each water line.
Have a helper feed the line to avoid kinks and snarls.
The maximum allowable diameter of a hole in any solid lumber joist is one third of.
Drill a series of holes along alternating floor joists on the other end.
Drill holes with a diameter of no more than one third the depth of the joist staying 2 in.
Of walls and rim joists.
When drilling through a stud be sure that each hole is at the same level so the pipe runs parallel to the floor.
If you have a 12 span and the joist is a full 12 you can drill a full 4 hole in the first and last 4.
There are very specific locations and sizes in the code telling you what is allowed.
The picture above shows what can happen when an untrained plumber is working on your home.
Some manufacturers recommend adding abrasion clips at each hole.
Engineered floor joists can be drilled only according to their manufacturer s guidelines the code specifies the maximum size of the holes you can drill or the notches you can cut where you can and can t place them and how far apart they can be spaced.