Drilling Silent Floor Joists

Joist and the sheathing a common source of squeaks.

Drilling silent floor joists.

Using table a table b or both if required determine the hole shape size and select the tji joist and depth. However a totally squeak free floor is dependent upon other components of the floor system as well this guide addresses the. Holes anywhere in the web area of engineered i joists except within 6 in. Of walls and rim joists.

Where and how to drill joists for electrical cables or. Scan horizontally until you intersect the cor rect hole size. Ilevel trus joist tji joist specifier s guide tj 4001 march 2007 11 how to use these tables 1. A properly installed silent floor system will ensure a squeak free floor due to the dimen sional and structural uniformity of the tji joists.

Trus joist tji joist specifier s guide tj 4000 july 2019. Drill holes with a diameter of no more than one third the depth of the joist staying 2 in. The picture above shows what can happen when an untrained plumber is working on your home. 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.

Unfortunately unless you are standing there guiding the subcontractor my strategy you often wind up with improper cuts. Refer to the hole chart on page 9 of the tji specifiers guide for uniformly loaded joists. Drilling floor joists to run plumbing wiring or ducts can be tricky. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1.

Let s review what is wrong with this particular joist and discuss what the proper technique is for. Away from the top and bottom. Jay having used silent floor joists for several years i m well aware of their advantages and limitations.