The numbers in gray indicate the distance between the support posts. This span table excerpt shows two possible sizes of built-up floor beams (2 X 10 and 2 X 12). View Joist & Rafter Tables. BCI® Joist span and size charts available for download. A double 2x12 beam can span 12 feet; a (2) 2x10 can span 10 feet and so on. BCI® Joists are specially constructed floor I-joists with flanges made from strong VERSA-LAM® LVL. Headers & Beams Joist span table - Use these tables to determine floor joist spans based on grade of lumber, size of joist, floor joist spacing, and a live load of 30 lbs/ft 2 or 40 lbs/ft 2.These tables can also be used to determine deck joist span. Listed are 46 tables based on common loading conditions for floor joists, ceiling joists and rafters. Headers & Beams : Allowable Load Tables. Simplified maximum span tables for selected visual and mechanical grades of Southern Pine lumber in sizes 2×4 thru 2×12. These tables are provided as a guideline. There are several beam span tables for all the species of wood. AITC Capacity Tables provide the uniformly distributed load that a glued laminated timber beam can support based on beam size, span and material properties. Tables providing size selections for various … The table below shows an excerpt from a maximum span for built-up Douglas fir floor beams table for supporting not more than one floor. Beam and Joist Span Tables. Joist and Rafter Span Tables Table specifications are provided with each table indicating conditions and assumptions used to calculate the loads. This table is simply a sample and may not be valid for your region. Dimensional Lumber Deck Beam Span Chart . Species and Grade Supported Built Up Beam Size Joist Length 3-2X8 4-2X8 3-2X10 4-2X10 3-2X12 4-2X12 8 9-8 11-2 11-10 13-8 13-8 15-10 10 8-8 10-0 10-7 12-2 12-3 14-2 Douglas Fir #1 & #2 12 7-11 9-1 9-8 11-2 11-2 12-11 14 7-4 8-5 8-11 10-4 10-4 11-11 16 6-10 7-11 8-4 … Span Tables Use the span tables below to determine allowable lengths of joists and rafters, based on size and standard design loads. Numbers in blue are joist spans ( beam to beam or house to beam) Floor Joist Span Tables for various Sizes and Species of Wood. Our VERSA-LAM ® LVL is manufactured in either Alexandria (Lena), Louisiana in Eastern United States, or in White City, Oregon for the Western United States. Built-Up Wood Floor Beams Supporting One Floor in a House Maximum Spans for Uniformly Distributed Loads. AITC Beam Capacity Tables. VERSA-LAM ® laminated veneer lumber (LVL) beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors and structures. ENGINEERED WOOD PRODUCTS (EWP) LVL SPAN AND SIZE CHARTS. Sample Floor Beam Span Table. The full table … You can also use the Wood Beam Calculator from the American Wood Council website to determine maximum rafter and joist lengths.