What size lumber can span 16?

For a 16 foot span, you will need atleast 3-2×14 or 6×14 size of wood beam. Thus, a 3 nailed 2×14 or 3-2×14 or 6×14 wood beam can allow to span 16 feet. For a 16-foot spans, the wood beam has to be at least 14 inches in depth and 6″ in width (3-2×14) used for residential building, wood frame structure or projects.

How far can I span a 2×10 for a pergola?





Although it depends on the species and grade of wood. As per thumb rule, for a pergola beam, 2″×12″ size timber you can span it upto 20 feet, 2×10 can span upto 16 feet, 2×8 can span upto 12 feet, 2×6 can span upto 10 feet and 2×4 can span upto 6 feet.

How far can you span a 2×6 on a pergola?

A 2×6 can support up to 50 pounds per square foot of weight without sagging with a maximum span of about 12 feet when spanning a distance horizontally, with the 2×6 standing in a vertical position. This number includes both live and dead weight.

How far can a 2×8 span without support pergola?

A rule of thumb is 1.5 times a joist’s depth but in feet when spaced at 16” centers. In general, a 2×8 will span 1.5 x 8, so 12-feet.

Can a 2×10 span 16 feet?

How Far Can a 2×10 Span Without Support? An SYP (Southern Yellow Pine) 2×10 lumber span can reach up to 14′ when used as a joist with 16” spacing. If using SPF or Redwood lumber, then the span maximum for the same distances will be half to a full foot less.

Can a 2×12 span 16 feet?





A 2×12 (2-by-12) floor joists can span up to 23 feet 3 inches, 2×10 (2-by-10) up to 19 feet 1 inches, 2×8 (2-by-8) up to 15 feet & 2×6 (2-by-6) up to 11 feet 4 inches at 16″ spaced by using southern yellow pine graded as #1 when live load of 30 lbs/ft^2 & dead load of 10 lbs/ ft^2.

What size header do I need for a 16 foot span?

What size LVL header size for 16 foot span:- as per general thumb rule and guidelines for a 16 foot span, size of LVL header or GLULAM should be 14 to 16 inches deep and 3.5 inches wide, thus you need something like 2- 1.75″× 16″ (2- 1 3/4″× 16″) GLULAM or LVL header to span upto 16 feet.

What size beam do I need to span 15 feet?

Thus, for a 15 foot span, you will need atleast 3-2×12 or 6×12 size of wood beam. For a 15-foot spans, the wood beam has to be at least 12 inches in depth and 6″ in width (3-2×12) used for residential building, wood frame structure or projects.

What size wood should I use for a pergola?

Most builders use a minimum of 2×8 for the upper framing members, and that’s for a small pergola. On this pergola, the builder Ricky Chavez used 2×12 for the girders, 2×10 for the rafters, and 2×4 for a layer of decorative purlins fastened atop the rafters.

How many rafters do I need for a 16 foot span?



As per general rules and guideline, for 10 -12 foot span, generally you need 2″×6″ size of rafter, for 15 -16 foot span, you need 2″×8″ rafter, for 18 – 20 foot span, you need 2″×10″ rafter & for 24 foot span, you need 2″×6″ size of rafter placed at 16″ apart from centre.

What size beam do I need to span 18 feet?

Thus, for a 18 foot span, you will need atleast 3-2×16 or 6×16 size of wood beam. For a 18-foot spans, the wood beam has to be at least 16 inches in depth and 6″ in width (3-2×16) used for residential building, wood frame structure or projects.

What size should pergola rafters be?

Pergola rafter size:- typically the rafters size used for pergola could be 2×6 (2 inches by 6 inches), 2×8 (2 inches by 8 inches), or 1.5×7.25 (1.5 inches by 7.25 inches). The length of the rafters be as long as you desire the pergola itself to be. The longer the rafters, the more you need.

Can a 2×10 span 18 feet?



A #2-2×10 joist can span between 11′-5” and 18′-0”, as a rafter between 13′-9” and 21′-7”, and as a beam 3′-6” and 13′-0” or more. The span depends on spacing, lumber species, and grade, and for a beam, the lamination thickness, as well as numerous other factors.

How far can a triple 2×10 span?

Joists

Joist Size Spacing Spruce or Pine fir
2×10 12” OC 17′-3”
16” OC 15′-5”
24” OC 12′-7”
2×12 12” OC 20′-7”

What is the longest 2×10 you can buy?

Dimensions

Actual Product Length (ft.) 20 ft 1.5 in
Actual Product Width (in.) 9.25 in 2×10
Nominal Product Length (ft.) 20 ft 2 in
Nominal Product Width (in.) 10 in

Does lumber come in 16 feet?



On the Demand Side, 16-Foot Boards Are Popular
Our 16-foot boards are by far the most requested, followed closely by 12-foot boards. This is because longer boards can always be made shorter, and it’s always better to have excess material than not enough.

What size floor joist do I need for a 16 foot span?

What size floor joist to span 16 feet:- as per general rules and guideline, a 2×8 (2-by-8) size of floor joists made of southern yellow pine, graded as #1 can allows joist spans up to 16 feet for a live load of 30 pounds per square foot and dead load of 10 pounds per square foot when spaced 16 inches apart.

How big of a beam do I need to span 20 feet?

What size beam to span 20 ft:- as per general thumb rule and guidelines, a 4 nailed 2×16 or 4-2×16 or 8×16 size of wood beam can allow to span 20 ft. Thus, for a 20 foot span, you will need atleast 4-2×16 or 8×16 size of wood beam.

What size beam do I need for a 14 foot span?

Thus, for a 14 foot span, you will need atleast 3-2×12 or 6×12 size of wood beam. For a 14-foot spans, the wood beam has to be at least 12 inches in depth and 6″ in width (3-2×12) used for residential building, wood frame structure or projects.

What size LVL do I need for a 20 foot span?



What size lvl beam for a 20 foot span:- as per general thumb rule, for a 20 foot span, size of LVL beam or GLULAM should be 10 to 12 inches deep and 3-1/2 inches or 2ply wide, thus you need something like a 10-12″ GLULAM or LVL to span upto 20 feet and can use simple 2×14 dimensional lumber at 16″ apart from centre as