Drilling Silent Floor Joists

The picture above shows what can happen when an untrained plumber is working on your home.

Drilling silent floor joists.

Away from the top and bottom. Aug 26 2011 03 01 am. A properly installed silent floor system will ensure a squeak free floor due to the dimen sional and structural uniformity of the tji joists. Joist and the sheathing a common source of squeaks.

Where and how to drill joists for electrical cables or. 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. Jay having used silent floor joists for several years i m well aware of their advantages and limitations. Unfortunately unless you are standing there guiding the subcontractor my strategy you often wind up with improper cuts.

Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Of walls and rim joists. Trus joist tji joist specifier s guide tj 4000 july 2019. However a totally squeak free floor is dependent upon other components of the floor system as well this guide addresses the.

Drill holes with a diameter of no more than one third the depth of the joist staying 2 in. Refer to the hole chart on page 9 of the tji specifiers guide for uniformly loaded joists. Let s review what is wrong with this particular joist and discuss what the proper technique is for. Drilling floor joists to run plumbing wiring or ducts can be tricky.

Scan horizontally until you intersect the cor rect hole size. Using table a table b or both if required determine the hole shape size and select the tji joist and depth. 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.