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
    • 360 Degree Machinery
      Specializing in high end American, European, and select Import woodworking machines.
    • Holz-Her US Inc.
      Custom Edgebanders, Vertical Panel Saws, CNC Beam Saws, Wide Belt Sanders, CNC Point to Point Boring Machines, CNC Routers
    • American Fabric Filter Co.
      Provider of Custom Made Filter Bags and Transfer Sleeves
    • Unique Machine & Tool
      Industrial Machinery for Door and Drawer Production
    • Rose Machinery
      Horizontal Band Re-rips, Standard & Custom Designed Machinery
    • JKL Machinery
      US Exclusive Importer Casadei, Busellato, Vitap, Bonacin - Machinery Dealer representing New & Used Woodworking Machinery
    • ULTI-BOARD
      The Ultimate Spoilboard - ULTI-BOARD - Specifically Engineered and Formulated for the Ultimate in Spoilboard Performance - Not Your Ordinary Sheet of MDF.
    • TotalFinishingSUPPLIES.com
      Solutions and supplies from spray tips to spray booths for all your woodworking needs
    • Weinig Group-USA
      Wood Moulders and Knife Grinding Equipment
    • Onsrud Cutter
      Router Tooling for Woodworking, Plastic and Non-Ferrous Metal Manufacturers
    • Limtech Industries, Inc.
      CNC Routers, Machinery for Woodworking, Plastic and Other Non-ferrous Metal Machining Applications
    • Safety Speed Manufacturing
      Economical Vertical Panel Saws, Panel Routers, Edgebanders and Widebelt Sanders
    • Elias Woodwork & Manufacturing
      Solid Wood Cabinet Doors, Furniture, Dovetail Drawers, Mouldings, and Related Items

    Become a Sponsor today!