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.

Drilling silent floor joists.

Scan horizontally until you intersect the cor rect hole size. However a totally squeak free floor is dependent upon other components of the floor system as well this guide addresses the. Jay having used silent floor joists for several years i m well aware of their advantages and limitations. Drill holes with a diameter of no more than one third the depth of the joist staying 2 in.

Away from the top and bottom. Refer to the hole chart on page 9 of the tji specifiers guide for uniformly loaded joists. Aug 26 2011 03 01 am. Of walls and rim joists.

Ilevel trus joist tji joist specifier s guide tj 4001 march 2007 11 how to use these tables 1. Trus joist tji joist specifier s guide tj 4000 july 2019. 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. There are very specific locations and sizes in the code telling you what is allowed.

Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. The picture above shows what can happen when an untrained plumber is working on your home. A properly installed silent floor system will ensure a squeak free floor due to the dimen sional and structural uniformity of the tji joists. Drilling floor joists to run plumbing wiring or ducts can be tricky.

Joist and the sheathing a common source of squeaks. Let s review what is wrong with this particular joist and discuss what the proper technique is for. 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.