Drilling Tji Floor Joists

Where and how to drill joists for electrical cables or.

Drilling tji floor joists.

They are located 3 away horizontally edge to edge from a larger hole. Minimum distance from table b 1 round holes may be cut anywhere in web outside of hatched zone if. Minimum applies to all holes except knockouts closely grouped round holes are. Drilling floor joists to run plumbing wiring or ducts can be tricky.

Featuring trus joist tji joists for floor and roof applications uniform and predictable lightweight for fast installation resource efficient resists bowing twisting and shrinking significantly reduces callbacks available in long. Refer to the hole chart on page 9 of the tji specifiers guide for uniformly loaded joists. There are very specific locations and sizes in the code telling you what is allowed. In a perfect world floor joists are left whole to provide the greatest support.

Of walls and rim joists. Let s review what is wrong with this particular joist and discuss what the proper technique is for. But modern living requires electrical wiring and plumbing. How to drill a hole through the side of a floor joist.

Holes anywhere in the web area of engineered i joists except within 6 in. Often hole size can be increased and holes can be placed closer to bearing than shown on the chart based on actual design spans and loads. The picture above shows what can happen when an untrained plumber is working on your home. Permitted if the group perimeter meets.

Drill holes with a diameter of no more than one third the depth of the joist staying 2 in.