Light gauge steel floor joists For structural and non-structural framing, light gauge steel framing offers many advantages. Cold formed steel structures are both lightweight and strong, helping the job to get completed quickly. Unlike wood, steel framing is non-combustible and also resists warping, rotting and insect damage. Light gauge steel framing is easily assembled with C-Joist components, which are economical, lightweight and come conveniently pre-cut. JDCC supplies everything you need for steel framing, so contact us for your next project. The joist also features a series of smaller holes for electrical and technology lines. JDCC steel joists are precision manufactured from corrosion-resistant galvanized steel. Steel joists offer consistent quality, predictable performance and high strength to weight ratio, and they are dimensionally stable. They won鈥檛 expand, contract or shrink; they won鈥檛 warp, crack or twist. Steel joists integrate easily with other building materials such as structural steel, concrete, ICF and wood construction. Joists can be ordered in standard lengths or to your exact specifications to minimize waste. Clear spans up to 33鈥?/p> Hole sizes range from 4-1/4鈥?oval to 10鈥?round based on member depth Superior strength permits wider o.c. spacing Pre-cut to your exact specifications鈥攏o waste Available in 7-1/4鈥? 8鈥? 9-1/4鈥? 10鈥? 11-1/4鈥? 12鈥?and 14鈥?deep members Flange sizes include 1-3/4鈥?and 2鈥?/p> Eliminates soffit framing Standard Hole Spacing: 18" to center of first hole 48" to center of each additional hole - But not closer than 48"o.c to the last (Trailing edge) hole Last hole is centered 18" from end of the joist (Trailing edge)Steel Structural Parts manufacturers website:http://www.jdccsteelstructure.com/building-accessories/steel-structural-parts/