Figure 1: Oriented Strand Board

OSB Frequently Asked Questions

Q What are common thicknesses for OSB?

A Common thicknesses are:
  • 1/4" (6 mm)
  • 3/8" (9.5 mm)
  • 7/16" (11 mm)
  • 15/32" (12 mm)
  • 1/2" (12.5 mm)
  • 19/32" (15 mm)
  • 5/8" (15.5 mm)
  • 23/32" 18 mm)
  • 3/4" (18.5 mm)
Other thicknesses are available on special order. Panels 19/32" (15mm) and thicker are manufactured either square-edged or tongue and groove on the long edge.

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