Dimension lumber (2" to 4")

2x2

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

Dimensions

Depthd
1.5in
Widthb
1.5in

Mass and area

Cross-sectional areaA
2.25in²
Outside perimeterP
6in

Strong axis x–x

Moment of inertiaIx
0.4219in⁴
Elastic section modulusSx
0.5625in³
Plastic section modulusZx
0.8438in³
Radius of gyrationrx
0.433in

Weak axis y–y

Moment of inertiaIy
0.4219in⁴
Elastic section modulusSy
0.5625in³
Plastic section modulusZy
0.8438in³
Radius of gyrationry
0.433in

Torsion and stability

Torsional constantJ
0.713in⁴

Equivalents in other standards