GL13 252 × 135

Section properties

Depth, d

252 mm

Breadth, b

135 mm

Area, A

34,020 mm²

Iₓ (major)

180.0 ×10⁶ mm⁴

I_y (minor)

51.67 ×10⁶ mm⁴

Zₓ (major)

1429 ×10³ mm³

Z_y (minor)

765 ×10³ mm³

Self-weight

17.7 kg/m

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