Dimension lumber (CSA O141)

64x64

Standard: CSA O141Source: Actual metric sizes, calculated
xyb = 64d = 64
Cross-section, to scaledimensions in mm

Dimensions

Depthd
64mm
Widthb
64mm

Mass and area

Cross-sectional areaA
4,096mm²
Outside perimeterP
256mm

Strong axis x–x

Moment of inertiaIx
1.39810⁶ mm⁴
Elastic section modulusSx
43.6910³ mm³
Plastic section modulusZx
65.5410³ mm³
Radius of gyrationrx
18.48mm

Weak axis y–y

Moment of inertiaIy
1.39810⁶ mm⁴
Elastic section modulusSy
43.6910³ mm³
Plastic section modulusZy
65.5410³ mm³
Radius of gyrationry
18.48mm

Torsion and stability

Torsional constantJ
2,36310³ mm⁴

Equivalents in other standards