Dimension lumber (2" to 4")

2x3

Standard: DOC PS 20 / NDS SupplementSource: Nominal → actual dry sizes (PS 20), calculated
xyb = 1.5d = 2.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
2.5in
Widthb
1.5in

Mass and area

Cross-sectional areaA
3.75in²
Outside perimeterP
8in

Strong axis x–x

Moment of inertiaIx
1.953in⁴
Elastic section modulusSx
1.563in³
Plastic section modulusZx
2.344in³
Radius of gyrationrx
0.7217in

Weak axis y–y

Moment of inertiaIy
0.7031in⁴
Elastic section modulusSy
0.9375in³
Plastic section modulusZy
1.406in³
Radius of gyrationry
0.433in

Torsion and stability

Torsional constantJ
1.761in⁴

Equivalents in other standards