Drilling Holes In Tji Floor Joists

Permitted if the group perimeter meets requirements for round.

Drilling holes in tji floor joists.

For information specific to holes in continuously supported tj rim board timberstrand lsl timberstrand lsl rim board and tji rim joists see guidelines for notches in rim board tb 224. They are located 3 away horizontally edge to edge from a larger hole. Where and how to drill joists for electrical cables or. 9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing connectors 14 15 section 2.

Drill holes with a diameter of no more than one third the depth of the joist staying 2 in. Of walls and rim joists. Holes anywhere in the web area of engineered i joists except within 6 in. The diameter of holes shall not be greater than 1 3 the depth of the floor joists.

Minimum applies to all holes except knockouts closely grouped round holes are. Floor performance and tj pro rating 4 5 section 1. For a 2 10 where actual depth is 9 25 inches the maximum allowable hole diameter would be just over. When joists are continuously supported the flanges can be occasionally notched because the joist is only transferring vertical loads.

There are very specific locations and sizes in the code telling you what is allowed. Minimum distance from table b 1 round holes may be cut anywhere in web outside of hatched zone if. Drilling floor joists to run plumbing wiring or ducts can be tricky. Away from the top and bottom.

Using table a table b or both if required determine the hole shape size and select the tji joist and depth. Ilevel trus joist tji joist specifier s guide tj 4001 march 2007 11 how to use these tables 1. Design properties 16 floor span and load.