Glulam beam (Glued laminated timber): sizes and span calculator

Glulam beam (Glued laminated timber): sizes and span calculator | Glulam beam sizes | Glulam beam span calculator | Glulam beam cost calculator | Glulam beam size calculator | Glulam beam weight per foot.

Glulam is abbreviated as Glued laminated timber made of special type of structural engineered wood product made from many layers of dimensional lumber which are bonded together with highly durable, moisture-resistant, pest resistant structural adhesives or glued.

Glulam are important structural member of building or wooden frame structure. These structural member are used as vertical column or post and horizontal beam. Glulam beam is a single large, high strength, strong, structural member is manufactured from smaller pieces of lumber by laminating a number of smaller pieces.

Glulam beam (Glued laminated timber): sizes and span calculator
Glulam beam (Glued laminated timber): sizes and span calculator

Pressure treated Glulam which are made of durable species of wood are used to make bridge, waterfront structure, Religious buildings, multi use facilities, Church, School building, library, Cathedral of christ the light, hurricane proof buildings, world tallest Glulam structure building.

Glulam beam is a glued Laminated timber or structural engineered wood material manufactured through the union of individual smaller pieces of lumber with special types of industrial adhesives usually Melamine or Polyurethane resin adhesives.

Glulam construction offers superior strength and stiffness over dimensional lumber. This type of wood is highly durable and moisture resistant, capable of generating large pieces and unique shapes and suitable for beams, pillars, ceiling, stairs, panels and cladding.

In this article we know about Glulam beam sizes and span, how far can a glulam beam span, glulam beam sizes, glulam beam span calculator, glulam beam cost calculator, glulam beam size calculator and glulam beam weight per foot.

Glulam beam

Glulam beam is engineered wood products manufactured by through the union of individual smaller pieces of lumber with special types of industrial adhesives usually Melamine or Polyurethane resin adhesives. Its construction offers superior strength and stiffness over dimensional lumber. This type of beams is highly durable and moisture resistant, capable of generating large pieces and unique shapes.

Glulam beam sizes

Typically, Glulam beam sizes are represented by their width and depth. Depth of Glulam beam are range from 7 1/4 inches (184mm) to 23 7/8 inches (606mm). Width of Glulam beam are range from 3-1/8″, 3-1/2″, 5-1/8″, 5-1/2″, 6-3/4 inches and 7 inches.

Standard depths for glulam members range from 114 mm (4-1/2″) to 2128 mm (7′) or more in increments of 38 mm (1-1/2″) and l9 mm (3/4″). A member made from 38 mm (1-1/2″) laminations costs significantly less than an equivalent. Member made from l9 mm (3/4″) laminations. However, the l9 mm (3/4″) laminations allow for a greater amount of curvature than do the 38 mm (1-1/2″) laminations.

Typical depth of Glulam beam are 7 1/4 inches (184mm), 9 inches, 9 1/4 inches (235mm), 9 1/2 inches (241mm), 11 1/4 inches (286mm), 11 7/8 inches (302mm), 14 inches (356mm), 16 inches (406mm), 18 inches (457mm), 18 3/4 inches (476mm), 20 inches (508mm) and 23 7/8 inches (606mm).

Typical Glulam beam width used in residential construction include: 3-1/8, 3-1/2, 5-1/8, 5-1/2, 6-3/4 inches and 7 inches. For non-residential applications, where long spans, unusually heavy loads, or other circumstances control design, custom members are typically specified.

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Dimensions of Glulam beam: length – 6/12/13 meters; thickness, mm: 80, 120, 160, 200; width, mm: 90, 110, 130, 180, 200, 220, 240
Individual sizes.

Glulam beam sizes: sizes of Glulam beam are following: 3-1/2″ × 9 1/2″, 3-1/2″ × 11 7/8″, 3-1/2″ × 14″, 3-1/2″ × 16″, 5-1/2″ × 9 1/2″, 5-1/2″ × 11 7/8″, 5-1/2″ × 14″, or 5-1/2″ × 15″ etc. Its comes in length of 12′ to 60′ long.

Glulam beam size calculator

Rule of thumb for sizing Glulam beam: as per thumb rule & general guideline, depth of the Glulam beam is 1/20th of span in inches and their width is 1/3 to 1/4 of the depth. For example, if span is 24 feet, then depth of glulam beam = (24 × 12)/20 = 14.4″, rounding as 14″ and width = 14/3 = 5 1/2″, thus, you would need 5-1/2″ × 14″ size of glulam beam to span 24 feet.

Glulam beam size calculator: To calculate the size of Glulam beam, convert the span length in feet to inches by multiplying with 12, divide the total span length in inches by 20 to get depth of Glulam beam. Width is 1/3 to 1/4 of the depth of Glulam beam.

Formula to calculate Depth of the Glulam beam = Span in inches/ 20. Width of the Glulam beam = Depth of beam/ 3. For example: if span is 20 feet, then depth of glulam beam = (20 × 12)/20 = 12″, rounding as 12″ and width = 12/3 = 4″, thus, you would need 5-1/2″ × 12″ size of glulam beam to span 20 feet.

Glulam beam span calculator

Glulam beam span calculator: To calculate the span length of Glulam beam, by using thumb rule, multiply the depth of beam in inches by 20 to get total span length in inches, divide the span length in inches by 12, resulting figure is span of glulam beam in feet.

Formula to calculate span length of glulam beam in feet = (Depth of beam in inches × 20)/ 12. For example: how far can you span 5-1/2″ × 16″ size of glulam beam, span of glulam beam = (16″ × 20) / 12 = 320/ 12 = 27 feet, thus, 5-1/2″ × 16″ size of glulam beam can allow to span 27 feet approx.

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Glulam beam weight per foot

Weight of Glulam beam measured in four units:- 1) weight per cubic feet (lbs/ ft3), 2) weight per linear foot (lbs/ ft), 3) weight per board foot (FBM) and 4) weight per linear meter.

Glulam beam weight per foot:- a 3- 1/2″ × 10″ size of Glued Laminated timber or Glulam beam can weight around 8.75 pounds per linear foot and a 3- 1/2″ × 12″ size can 10.5 lbs. One linear foot is the equal of a one-foot length of a wood.

High strength structural engineered wood or Glued Laminated timber or lumber or Glulam beam can weigh about 36 pounds per cubic foot or 3 pounds per board foot, or 576kg per cubic meter, or 8.75 pounds per linear foot.

Glulam beam cost calculator

Glulam beams cost $6 to $34 per linear foot on average. Glulam beam means “glued laminated timber,” and contains multiple thin layers of wood bonded together with strong glues.

Glulam beam cost calculator: To calculate cost of Glulam beam, multiply the length of beam or span by $6 to $34 to get total cost of Glulam beam. 3 × 6- 12 size of glulam beam costs around $6 – $14 per linear foot, 5 × 12- 18 size of glulam beam costs around $17- $34, and 6.75 × 12 size of glulam beam costs around $23- $38 per linear foot.

Conclusions:
Glulam beam is engineered wood products manufactured by through the union of individual smaller pieces of lumber with special types of industrial adhesives or glue usually Melamine or Polyurethane resin adhesives.

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