Dimension lumber (2" to 4")

3x16

Standard: DOC PS 20 / NDS SupplementSource: Nominal → actual dry sizes (PS 20), calculated
xyb = 2.5d = 15.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
15.25in
Widthb
2.5in

Mass and area

Cross-sectional areaA
38.12in²
Outside perimeterP
35.5in

Strong axis x–x

Moment of inertiaIx
738.9in⁴
Elastic section modulusSx
96.9in³
Plastic section modulusZx
145.4in³
Radius of gyrationrx
4.402in

Weak axis y–y

Moment of inertiaIy
19.86in⁴
Elastic section modulusSy
15.89in³
Plastic section modulusZy
23.83in³
Radius of gyrationry
0.7217in

Torsion and stability

Torsional constantJ
71.22in⁴

Equivalents in other standards