Tji Vs Floor Trusses

I joists have what is called span charts that can be utilized by the carpenters to allow for a variety of job site modifications.

Tji vs floor trusses. If you properly design your trusses you can have an opening 24 wide that lines up cleanly through the floor for duct runs. Floor trusses cannot be modified on site due to a field discrepancy without an engineer s seal. However most of the increase results from the national builders market share growth. 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.

Poll tji vs open web floor joist i am trying to decide betwee the two floor joist systems. Unless there is a good reason for your project to have floor trusses unusually long spans or heavy load requirements it would be much more cost effective opt for a more economical option that does not compromise performance such as the triforce open joist see span tables. Floor trusses are expensive. Open web floor trusses.

Open web floor trusses are constructed with 2 x 4 s on top and bottom with a sort of web in between secured with metal plates. Some of the small gain is due to the continuation of the replacement of solid sawn joists. Any input would be appreciated. Even though the trusses themselves are different lengths you can make a clean strait run zero.

The open space is ideal for running wires pipes and utilities. I have these in my home and i use the space for extra storage as you can see in the picture. Tji joist specifier s guide tj 4000 july 2019. Though i joist sales per housing start have increased about 6 over the last two years the trend has slowed considerably.