Timbers – 5" and larger

10x10

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

Dimensions

Depthd
9.5in
Widthb
9.5in

Mass and area

Cross-sectional areaA
90.25in²
Outside perimeterP
38in

Strong axis x–x

Moment of inertiaIx
678.8in⁴
Elastic section modulusSx
142.9in³
Plastic section modulusZx
214.3in³
Radius of gyrationrx
2.742in

Weak axis y–y

Moment of inertiaIy
678.8in⁴
Elastic section modulusSy
142.9in³
Plastic section modulusZy
214.3in³
Radius of gyrationry
2.742in

Torsion and stability

Torsional constantJ
1,147in⁴

Equivalents in other standards