Timbers – 5" and larger

5x14

Standard: DOC PS 20 / NDS SupplementSource: Nominal − ½" (green), calculated
xyb = 4.5d = 13.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
13.5in
Widthb
4.5in

Mass and area

Cross-sectional areaA
60.75in²
Outside perimeterP
36in

Strong axis x–x

Moment of inertiaIx
922.6in⁴
Elastic section modulusSx
136.7in³
Plastic section modulusZx
205in³
Radius of gyrationrx
3.897in

Weak axis y–y

Moment of inertiaIy
102.5in⁴
Elastic section modulusSy
45.56in³
Plastic section modulusZy
68.34in³
Radius of gyrationry
1.299in

Torsion and stability

Torsional constantJ
324in⁴

Equivalents in other standards