NeXTimber engineering product catalogue
GL13 glue laminated timber, Australian plantation radiata pine

GL13 336 × 85

Section properties

Depth, d
336 mm
Breadth, b
85 mm
Area, A
28,560 mm²
Iₓ (major)
268.7 ×10⁶ mm⁴
I_y (minor)
17.20 ×10⁶ mm⁴
Zₓ (major)
1599 ×10³ mm³
Z_y (minor)
405 ×10³ mm³
Self-weight
14.9 kg/m

Material properties

Modulus of elasticity (E)13 300 MPa
Modulus of rigidity (G)900 MPa
Bending strength (f′b)33 MPa
Tensile strength ∥ grain (f′t)16 MPa
Shear strength in beams (f′s)4.2 MPa
Compressive strength ∥ grain (f′c)26 MPa
Designed to AS 1720.1, AS 1720.1-2010, verified Aug 2025