Tji Vs Floor Truss
Hopefully with these few detailed examples of both.
Tji vs floor truss. However most of the increase results from the national builders market share growth. Because it uses single wood members as building blocks there can be many variations on its design. Scdesigner posted in general discussion on december 30 2008 04 40am i m designing a house for a client and i m debating on using tji s or floor trusses. I don t think that s a repair endorsed by any truss engineer but the floor hasn t caved in yet.
Those galvanized plates are getting a little rusty now after fifteen years near the salt water. Any input would be appreciated. Featuring trus joist tji joists for floor and roof applications uniform and predictable lightweight for fast installation resource efficient resists bowing twisting and shrinking significantly reduces callbacks available in long. Tji s are more eco friendly they involve far less wood osb is made of scraps the adhesives aren t all that bad shipping is easier no steel plates are used and the list goes on.
The truss has to be designed sealed built and then delivered from the same truss manufacturer. This is the maximum deflection the designer should meet but it is only a minimum requirement. Some homeowners may notice this deflection and complain about bouncy floors. When there is an issue with the floor truss expect some type of delay.
It s a basement house and the a c loads will be small enough i feel like the duct lines can be run through either floor system a little more work for tji. To provide higher quality floors for homeowners a. What i wanted to do was compare these numbers spans to that of ordinary 2x12 lumber. Poll tji vs open web floor joist i am trying to decide betwee the two floor joist systems.
The second floor will be hardwood with the exception of the bathrooms. Floor trusses and i joists you can understand why i think i s are the better product. The first floor will be mostly tile so a good sturdy floor is mandatory. The advantages of open web floor trusses are beginning to decelerate the growth of ewp.
For example a floor joist spanning 20ft 240 inches a deflection limit of 2 3inch for live loads and 1inch for total loads. Though i joist sales per housing start have increased about 6 over the last two years the trend has slowed considerably. This combined with its strength and stability made it a popular choice in residential and light commercial construction since its introduction in the late. A floor truss consists of high quality 2 x 4 or 2 x 3 lumber connected with metal plates.
A house really shouldn t need truss unless there is a serious heavy load. I actually already had the span table which i got from the tji floor joist brochure.