SolidStart® I-Joist

I-Joists

Floors that Don’t Talk Back

LP® SolidStart® I-Joist production combines laminated veneer lumber (LVL) or finger-jointed sawn wood flanges with a web of oriented strand board (OSB) to produce an I-shaped structural member. The flanges resist bending stresses and deflection, while the web provides outstanding shear performance — making them ideal for long spans in floors, ceilings and roof framing.

Step 1. Our I-Joist manufacturing process begins with a gang rip cutting webs of OSB to size. Some products are available in depths up to 24 inches.
Step 2. The web passes through a feeder and then is precision machined and shaped.
Step 3. Meanwhile, LVL or sawn wood is ripped and grooved to create flanges that will precisely match the web’s shaped edge.
Step 4. The web and flanges are assembled using waterproof adhesive.
Step 5. A cross-cut saw cuts the I-Joists to length.
Step 6. Finally, the I-Joists pass through an oven dryer, which dries the adhesive completely and provides a low, uniform moisture content for reduced shrinkage. Reduced shrinkage means fewer pops and squeaks — for floors that don’t talk back.