Dimension lumber (2" to 4")

3x10

Standard: DOC PS 20 / NDS SupplementSource: Nominal → actual dry sizes (PS 20), calculated
xyb = 2.5d = 9.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
9.25in
Widthb
2.5in

Mass and area

Cross-sectional areaA
23.12in²
Outside perimeterP
23.5in

Strong axis x–x

Moment of inertiaIx
164.9in⁴
Elastic section modulusSx
35.65in³
Plastic section modulusZx
53.48in³
Radius of gyrationrx
2.67in

Weak axis y–y

Moment of inertiaIy
12.04in⁴
Elastic section modulusSy
9.635in³
Plastic section modulusZy
14.45in³
Radius of gyrationry
0.7217in

Torsion and stability

Torsional constantJ
39.98in⁴

Equivalents in other standards