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
    • TradeSoft
      Seamless Management Software to Improve Estimating, Job Costing, Scheduling, Purchasing, Shipping, and Shop Floor Data Collection
    • TotalFinishingSUPPLIES.com
      Solutions and supplies from spray tips to spray booths for all your woodworking needs
    • Cabinetshop Maestro
      Web-Based Project Management Software for Custom Cabinet Shops - Manage Jobs from Prospect to Punchlist Through Scheduling, Task Management, Time Tracking and Communication
    • Thermwood Corporation
      Computer Numerical Control (CNC) Routers and Accessories
    • Better Vacuum Cups, Inc.
      Vacuum Cups for All CNC Routers As Well As Many After Market Parts for Your CNC
    • VortexTool Co. Inc.
      Manufacturers of Custom Cutting Tools, and Distributors of Major Cutting Tool Brands
    • RT Machine Co.
      Stocking Distributor of New and Used Woodworking Machinery
    • CabMaster Software
      The Easiest Custom Cabinetry Software
    • Original Saw Company
      Industrial Radial Arm Saws
    • MachineryMax
      New and Used Machinery for the Professional Woodworker
    • Parts Cutter CNC
      CNC Cabinetry and Closet Parts
    • Excel Dowel and Wood Products Inc.
      Plain and Pre-glued Dowel Pins, and Wood Parts - Servicing Small Hobby Shops to Large OEM's
    • J&P Machines
      Design and Production of Custom Equipment for the Manufacturing Industry

    Become a Sponsor today!