Framing a I-Joist Subfloor For a NEW HOME (DIY Guide)

Learn how to frame a I-Joist subfloor for a new home in this step-by-step DIY guide. Follow along as we show you how to construct a subfloor using I-Joists and install 3/4 T&G Flooring for a squeak-free floor. Whether you're a beginner or experienced builder, this complete tutorial will help you achieve a sturdy and reliable subfloor for your new home. Watch now and start framing your subfloor with confidence!

[bluesfool]

Looking great! Can’t wait to see the next video!!

[aristotle]

Good work! I used I-joists for the second floor of a 2 story garage but used shop made squash blocks between the I-joists as I was concerned about snow load on the roof bearing down. More work but the spacing was really easy.

[judithakerley]

Fantastic work! Love the hummingbird nest

[johnpearce]

Don't forget to add went wholes with screen for crawl space, you don't want to trap moisture in crawl space to cause dry rot.

[joshuajackson]

Are you leaving the crawlspace open like that dirt bottom non encasplated? I’m putting I joist on my addition and I’ve heard some things about moisture online and I joists being an issue with that but I imagine it’s only an extremely moist climates. wondering if you were leaving the crawlspace as is or had any info on that thanks!

[joshuajackson]

On another note what’s the thickness of the subfloor decking 3/4? Any sponge at all with it. My old house had 11/8 subfloor but spanned whopping 4 ft wondering how 16 oc joist with 3/4 decking might compare

[jst]

Do you need a I joist (BCI) on the ends or does the rim board osb efficient enough to hold up the outside walls where there is no BCI?

[manclg]

Wow boulders everywhere is that a riverbed build

[hammertime]

What’s with all the rocks. Where are you building this house?

[iselagomez]

What size is the foundation perimeter?

[Medicranger]

Looks good but highly disagree with putting the decking on before you get the utilities installed in that crawl space. Why cover it all up! It would make it so much easier and faster to allow all that piping and ducting, and all the trades people to access that space before you cover up it up.

[terrancemiller]

dont glue rimbaord and you dont need to sit to glue.

[schlz]

4X4 posts, what material is that? looks kinda red, and does not look pressure treated. if its not treated and in contact with the concrete, it will rot out in a few years.

[schlz]

HUGE PROBLEM! with your rim board!!! Because your mud sill overhangs your foam, you need additional rim board that sits on the foundation on the parallel runs, otherwise the wall is not transferring load directly onto the foundation, you are bearing on the unsupported 2X8. Tis is in the IRC and applies in most jurisdictions in North America and most of the world.