What size beam do I need to span?

Wood beam size for a 20 foot span:- as per general thumb rule, for a 20 foot span, size of wood beam or lumber joist should be 2×14 which placed at 16″ apart from centre used for residential building or projects or construction in which depth of section of beam is 350mm (14″) and width of beam is 50 mm or 2″.

What size beam do I need to span 6 meters?





For 6m span size of beam should be 230mm×300mm (9″×12″) for residential building in which width is 230mm (9″) and beam depth is 300mm (12″) using M20 grade of concrete and Fe500 grade of Steel.

What size beam do I need to span 24 feet?

For 24 foot span, size of simply supported beam for 2-3 storey residential building, using thumb rule, is about 15″×18″ in which beam width is 12″ and beam depth is 15″, if width will be kept 12″, depth should increased, then beam size 12″×24″ can be used, providing with 4nos of 16mm bar at top, 4nos of 20mm bar at …

How big of a beam do I need to span 16 feet?

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.

What size beam do I need for a 15 foot span?

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.

How far can wood beams span?





As per general rules and guidelines, #2 grade southern pine of a double 2×6 deck beam can span upto 6 feet, (2) 2×10 can span 10 feet, (2) 2×8 can span 8 feet and (2) 2×12 can span 12 feet.

What size should ceiling joists be?

Standard Size of Joists

Though there is no standard joist size for the ceilings in all buildings, most average homes use ceiling joists in a board size of 2-by-6 inches. The range of joist sizes used in homes varies though, between 2-by-4 inches and 2-by-12 inches.

What size timber do I need to span 3m?

What size timber to span 3m:- as per general thumb rules and guideline, for flat roof, a 47×170 mm size of timber as floor joists can allows spans up to 3 metres for permanent loads are assumed to be 50 kg/m2 and imposed load of 150kg/m2 when spaced 400mm apart.

How far can a ceiling joist span?



A general rule of thumb for joist span is 1-1/2 times a board’s depth in feet, however, it’s not that simple. The distance a 2×6 can span is determined by the species, grade, location, use, load, and spacing. Based on building codes, a 2×6 can span anywhere from 2′-1” to 20′-8” depending on the affecting factors.

What size beam do I need for an 18 foot span?

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 lumber will span 16 feet?

Max. Live Load 60 lbs/ft2 (2873 N/m2)

Maximum Span (ft – in)
Nominal Size (inches) Joist Spacing Center to Center (inches) Lumber Grade
2 x 8 24 10′ – 5″
2 x 10 12 16′ – 8″
16 15′ – 2″

How far can you span a 4X10 beam?



Dimensional Lumber Deck Beam Span Chart

Joist Spans
Douglas Fir-Larch, Hem-Fir, Spruce-Pine-Fir, Redwood, Cedars, Ponderosa Pine, Red Pine 4X10 9′-8″
4X12 11′-2″
3-2X6 7′-1″
3-2X8 9′-5″

What is the maximum span of a 2×4 ceiling joist?

A 2×4 can span a maximum of 6′ 7” when spaced 16” apart and used as a floor or deck joist. When used as a ceiling joist or a roof rafter, a 2×4 can span up to 7′ 3” spaced at 16”, and 6′ 4” when spaced 24” apart.

How far can a 8X8 beam span?

20 to 25 feet is a serious span – an 8X8 won’t even come close. From contributor P: Figure an inch per foot of span. 20′ would require 20″, 25′ would require 25″.

What size beam do I need for a 12 foot span?

Thus, for a 12 foot span, you will need atleast 3-2×10 or 6×10 size of wood beam. For a 12-foot spans, the wood beam has to be at least 10 inches in depth and 6″ in width (3-2×10) used for residential building, wood frame structure or projects.

What size lumber can span 10 feet?



2-grade 2×6 joists can span up to 10 feet 9 inches from beam to beam when spaced the standard 16 inches apart with a maximum live load of 30 inches per square foot.

Can a 6×6 span 10 feet?

A #2 S-P 6×6 will span between 7′-0” and 8′-6” for joist spans of 6-feet, and 4′-2” to 4′-11” with joist spans of 18-feet depending on loads. Dead loads of 10 psf commonly reflect the weight of the structure and fixed materials, while the live or ground snow load can fluctuate from 40 psf to 70 psf.

What size LVL beam do I need for a 10 ft span?

What size lvl beam for a 10 foot span:- as per general thumb rule, for a 10 foot span, size of LVL beam or GLULAM should be 6 inches deep and 1 3/4 inches wide, thus you need something like a 6″ GLULAM or LVL to span upto 10 feet and can use simple 2×6 dimensional lumber at 16″ apart from centre as floor joists used …

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 …

What size LVL beam do I need for 9 foot span?



What size LVL header size for 9 foot span:- as per general thumb rule and guidelines for a 9 foot span, size of LVL header or GLULAM should be 9 to 10 inches deep and 3.5 inches wide, thus you need something like 2- 1.75″× 9.25″ (2- 1 3/4″× 9 1/4″) GLULAM or LVL header to span upto 9 feet.