Wood Shrinkage Calculator

Calculator Instructions

Species:            
Width: Centimeters: .
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
    • Vacuum Pressing Systems, Inc.
      Vacuum Pressing Equipment - Including Bag and Frame Systems
    • The Millwork Studio
      Millwork Shop Drawings and Estimates
    • OMEC/Macoser Inc
      Exclusive Importer of European Woodworking Machinery Since 1988
    • Cab Parts
      Pre-manufactured Components for Easy-to-Assemble Cabinet Boxes
    • Limtech Industries, Inc.
      CNC Routers, Machinery for Woodworking, Plastic and Other Non-ferrous Metal Machining Applications
    • TradeJobPlacement.com
      Individualized Placement Services, Specializing in Millwork Design Engineers
    • American Fabric Filter Co.
      Provider of Custom Made Filter Bags and Transfer Sleeves
    • Carter Products
      Band Saw Guides, Blades, Wheels, Tires, Line Lasers and 2D Projectors, Wide Belt Sanding Accessories, Vacuum Holding Systems and More
    • Machinery Associates
      Used Woodworking Machinery marketplace
    • KCD Software
      Powerful 3D Cabinet/Closet Design Software with Built-In Touchscreen Mode for Mobile Use with Best Production Practices Including Direct to Cut List, Cabinotch and/or CNC Machining
    • Lignomat
      Moisture Meters and Monitoring Systems
    • American National Knife
      Manufacturer of HSS and Carbide Tipped Woodworking Knife Sets for Planers, Jointers, Molders, Shapers
    • iBiDMachinery
      The Nation's #1 Used Woodworking Marketplace - Buy and Sell Woodworking Equipment with iBiD!

    Become a Sponsor today!