How far can a 2×8 span without support? In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists.
10 feet
Thereof, How far can a 2×12 span without support?
How far can a 2×12 beam span without support? 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. A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on.
Also to know is, How far can a 4×12 beam span without support? As long as you have the physical strength, it may be possible to lift support beams that are up to 10 feet long.
Subsequently, question is, Can a 2×10 span 20 feet? Douglas fir 2-by-10 joists graded as “Structural Select” allows joist spans up to 21 feet for a live load of 30 pounds per square foot when spaced 12 inches apart, 19 feet 1 inch for 16 inch spacing and 16 feet 8 inches for 24 inch spacing.
Also, How much weight can a 2×10 beam hold?
1,200 lbs.
How much weight can a 2×12 support?
approximately 180 pounds per foot
HOW FAR CAN 4 2×12 span?
You will see that a 4-ply, 2 X 12 can span a maximum of 13′ while supporting 12′ joists on either side of it.
How far can a 6×12 beam span?
16′ is the furthest you can go with a 6×12 doug-fir no. 2 pressure treated beam.
What size beam do I need to span 24 feet?
You’ll need at least a 12″ (nominal) I-joist or an engineered floor truss to span that far, or you’ll need an LVL or steel beam midway.
How far can a triple 2×12 span without support?
How far can a 2×8 beam span without support? In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists.
What size lumber can span 24 feet?
How far can a 4×12 beam span?
How far can a 2×10 span without support?
How far can a 2×8 span without support? In general terms, joists spaced 16 inches on center can span 1.5 times in feet their depth in inches. A 2×8 up to 12 feet; 2×10 to 15 feet and 2×12 to 18 feet. The larger the deck, the larger the joists.
How far can a 6×12 glulam beam span?
In large open spaces, glulam beams can span more than 100 feet.
What size beam do I need to span 10 feet?
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. A double 2×12 beam can span 12 feet; a (2) 2×10 can span 10 feet and so on.
How much weight can a 2×10 support horizontally?
1,200 lbs.
What size beam do I need to span 30 feet?
For a single 30′ beam, you can plan for a W12x40 (it’s 12″ deep x 8″ wide and weighs 40 pounds per foot). If you add the two posts, you can plan for a W4x13 (it’s 4″ deep x 4″ wide and weighs 13 pounds per foot).
Don’t forget to share this post 
References and Further Readings :