Wood Shrinkage Calculator

Calculator Instructions

Species:            
Width: Inches: Fractions:
Initial MC:
(Moisture Content)
            % (no decimal necessary)
Final MC:
(Moisture Content)
            % (no decimal necessary)
Type of Lumber: Flatsawn
Radialsawn


Instructions: Wood Shrinkage Calculator

Width:
Enter the actual measured width of the lumber, in inches and fractions of an inch (centimeters, if metric).

Initial Moisture Content:
Enter the initial moisture content(MC). Do not enter decimals or fractions, and do not enter the percentage sign after the value. Values over 30% MC will be calculated as 30% MC. It is generally accepted changes in MC above 30% do not affect dimension because free water is present.

Final Moisture Content:
Enter the final moisture content(MC). Do not enter decimals or fractions, and do not enter the percentage sign after the value. Values over 30% MC will be calculated as 30% MC.

Type of Lumber:
By default, flatsawn is the type of lumber chosen. If you would like to calculate the shrinkage for radialsawn lumber, choose the radialsawn option.

Detailed reference material regarding the calculation of Wood Shrinkage can be accessed via the links below. If you have any questions regarding the methodology used in WOODWEB's Wood Shrinkage calculator, we suggest that you post your question at our
Sawing and Drying Forum.

  • Measuring/Monitoring Moisture Levels
  • I've Got that Shrinking Feeling
  • Wood and Water

    Click Here to Access the Wood Shrinkage Calculator
  • Today's Sponsors
    • Doucet Machineries Inc.
      Designer, Manufacturer and Integrator of Machinery for the Secondary Wood Processing Industry
    • Vacuum Pressing Systems, Inc.
      Vacuum Pressing Equipment - Including Bag and Frame Systems
    • Lignomat
      Moisture Meters and Monitoring Systems
    • WOODWEB, Inc.
      The Information Resource for the Woodworking Industries
    • RT Machine Co.
      Stocking Distributor of New and Used Woodworking Machinery
    • Rangate
      Woodworking Machinery, Supplies and Knowledge
    • Denray Machine
      Quality Dust Filtration Systems Provided by an Industry Leader in Wood, Metal, and Many Other Dust Control Applications
    • EX-FACTORY INC.
      Offering New & Used Woodworking Machinery including Auctions & Liquidations
    • JKL Machinery
      US Exclusive Importer Casadei, Busellato, Vitap, Bonacin - Machinery Dealer representing New & Used Woodworking Machinery
    • Country Saw and Knife
      Complete Sharpening Services for Wood and Metal Saw Blades, Jointer Knives, and Bandsaw Blades
    • J&P Machines
      Design and Production of Custom Equipment for the Manufacturing Industry
    • Weinig Group-USA
      Wood Moulders and Knife Grinding Equipment
    • Machinery Associates
      Used Woodworking Machinery marketplace

    Become a Sponsor today!