Timbers – 5" and larger

6x16

Standard: DOC PS 20 / NDS SupplementSource: Nominal − ½" (green), calculated
xyb = 5.5d = 15.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
15.5in
Widthb
5.5in

Mass and area

Cross-sectional areaA
85.25in²
Outside perimeterP
42in

Strong axis x–x

Moment of inertiaIx
1,707in⁴
Elastic section modulusSx
220.2in³
Plastic section modulusZx
330.3in³
Radius of gyrationrx
4.474in

Weak axis y–y

Moment of inertiaIy
214.9in⁴
Elastic section modulusSy
78.15in³
Plastic section modulusZy
117.2in³
Radius of gyrationry
1.588in

Torsion and stability

Torsional constantJ
667.7in⁴

Equivalents in other standards