Timbers – 5" and larger

6x10

Standard: DOC PS 20 / NDS SupplementSource: Nominal − ½" (green), calculated
xyb = 5.5d = 9.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
9.5in
Widthb
5.5in

Mass and area

Cross-sectional areaA
52.25in²
Outside perimeterP
30in

Strong axis x–x

Moment of inertiaIx
393in⁴
Elastic section modulusSx
82.73in³
Plastic section modulusZx
124.1in³
Radius of gyrationrx
2.742in

Weak axis y–y

Moment of inertiaIy
131.7in⁴
Elastic section modulusSy
47.9in³
Plastic section modulusZy
71.84in³
Radius of gyrationry
1.588in

Torsion and stability

Torsional constantJ
336.5in⁴

Equivalents in other standards