Drilling Silent Floor Joists

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.

Drilling silent floor joists.

However a totally squeak free floor is dependent upon other components of the floor system as well this guide addresses the. Using table a table b or both if required determine the hole shape size and select the tji joist and depth. Let s review what is wrong with this particular joist and discuss what the proper technique is for. Unfortunately unless you are standing there guiding the subcontractor my strategy you often wind up with improper cuts.

Joist and the sheathing a common source of squeaks. Scan horizontally until you intersect the cor rect hole size. Drilling floor joists to run plumbing wiring or ducts can be tricky. The picture above shows what can happen when an untrained plumber is working on your home.

There are very specific locations and sizes in the code telling you what is allowed. Holes anywhere in the web area of engineered i joists except within 6 in. Aug 26 2011 03 01 am. Away from the top and bottom.

Drill holes with a diameter of no more than one third the depth of the joist staying 2 in. Trus joist tji joist specifier s guide tj 4000 july 2019. Refer to the hole chart on page 9 of the tji specifiers guide for uniformly loaded joists. A properly installed silent floor system will ensure a squeak free floor due to the dimen sional and structural uniformity of the tji joists.

Where and how to drill joists for electrical cables or. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Ilevel trus joist tji joist specifier s guide tj 4001 march 2007 11 how to use these tables 1.