what size lvl to span 30 feet civil sir u s sizing table lookup weyerhaeuser oncenter lvl beam 16 in x 1 75 in x 34 long span 35 lvl beam design floor beam sizing calculator the lvl beam sizes cost span and lvl beam sizes cost span and versa lam lvl size chart laminated framing the deck super maximum floor joist span long span 35 lvl beam design span tables for lvl