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BEAM 21 GLUE LAMINATED TIMBER (GLT)

Brawn & beauty

a close up of a glulam timber Beam 21 with a blurry background

Sizes & Specs

Durability
Durability Class 2 (Above Ground) Timber Species, Durability Class 1 Upon Request
Naturally bushfire resistant (BAL-29 rated timber species)
Naturally termite resistant
Naturally weather resistant
Profile
Straight or cambered to a 600m radius.
Appearance Grades
Beam 21 is available in two finish grades
as per AS 1328.1 – 1998:
Appearance Grade A
Appearance Grade B
Appearance Grade A (Spotted Gum)
Appearance Grade A is produced from sustainably sourced spotted gum and intended for use in applications where appearance is important and clear or painted finishes are used. All surface voids are therefore filled or repaired, and edges have a pencil round arris. Unless otherwise specified, the surfaces are sanded to a minimum 60 grit finish.
Appearance Grade B (Mixed hardwood)
Appearance Grade B is produced from sustainably sourced mixed Australian hardwoods, intended for use in painted applications or applications where appearance is not important. The surface is clean and planed but may exhibit minor blemishes. Edges are finished with a pencil round arris.
Fire Performance
Appearance Grade A
BAL29
Appearance Grade B
Bush fire assessment based on density is required
Sizes
65mm thickness
120, 155, 185, 215, 240, 280, 300, 315, 350, 380, 410
85mm thickness
120, 155, 185, 215, 240, 280, 300, 315, 350, 380, 410
Lengths
2.4m to 15.6m (in 0.3m increments)
Design Properties
Bending  (Fb)
50MPa
Tension (Ft)
25MPa
Shear (Fs)
5.0MPa
Density
1000kg/m3
Compression (Fc)
50MPa
Modulus of Elasticity (E)
21,000MPa
Modulus of Rigidity (G)
1,400MPa
Joint Group
JD2

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