Floor Framing Span Chart

Tree sawed and engineered.

Floor framing span chart. Joists for use in residential framing applications fall into two different categories. Listed are 46 tables based on common loading conditions for floor joists ceiling joists and rafters. Don t worry you won t need to do a lot of calculations in determining the size and placement of the structural framing within your house design. Simplified maximum span tables for selected visual and mechanical grades of southern pine lumber in sizes 2 4 thru 2 12.

Types of floor joists. Using floor joist span tables. When supporting joists that span 12 feet with no overhang beyond the beam a double ply beam can span in feet a value equal to its depth in inches. Live load is weight of furniture wind snow and more.

View joist rafter tables. Rafter spans can be extended slightly beyond what the rafter tables suggest when there is a cantelever extending beyond the supporting wall. 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. 1 ft 0 3048 m.

Floor joist span tables for various sizes and species of wood. Most lay outs are on 16 so the field is pre selected. A 2 2x10 can span 10 feet and so on. Also available for the android os.

The highest is a fully loaded floor 70 pounds per square foot. Floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing connectors 14 15 section 2. Design properties 16 floor span and load tables 17 allowable holes 18 roof span and load tables 19 cantilevers 20 21 framing connectors 22 23. Continuing on from part 1.

1 psf lb f ft 2 47 88 n m 2. Dimensional lumber deck beam span chart. The lowest is a plain ceiling joist with no storage 10 pounds per square foot. Span calculator for wood joists and rafters also available for the android os.

Select the on center spacing for the joists. The floor joist span chart and building code requirements are based on data from the 2012 international residential code using number 2 lumber. 2 grade of douglas fir are indicated below. Residential structural design vertical structural forces we were about to start learning about floor joist span tables.

Ceiling joist span use this table to determine the maximum lengths of ceiling joists based on species of lumber joist spacing and joist size. The numbers in gray indicate the distance between the support posts. Dead load weight of structure and fixed loads 10 lbs ft 2. Maximum floor joist span for no.