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
    • Impact Search and Placement
      Professional Employment Recruiting Specialists
    • American National Knife
      Manufacturer of HSS and Carbide Tipped Woodworking Knife Sets for Planers, Jointers, Molders, Shapers
    • Laguna Tools
      CNC Routers, CNC Lasers, Bandsaws, Woodworking Machines
    • Sandman Products
      Affordable Sanding Tables and Inspection Lighting
    • W. Moore Profiles, Ltd.
      Supplying Knives and Cutters to the Woodworking Industry - Standard and Custom Profiles Available
    • Western Dovetail
      Custom Made Dovetail Drawers
    • Scarlett Machinery Inc.
      New and Used CNC Routers and Used Woodworking Machinery, for Operations Ranging From Small Woodworking Shops to Large Progressive Manufacturing Plants
    • TradeSoft
      Seamless Management Software to Improve Estimating, Job Costing, Scheduling, Purchasing, Shipping, and Shop Floor Data Collection
    • Rico CNC Parts and Tools
      CNC Router Spare Parts, Vacuum Pods and Rubber Pads, Tool Holder Clips, CNC Woodturning Tools, Edgebander Replacements, Beam Saw Accessories
    • Steve H. Wall Lumber Co.
      Quality Hardwoods and Softwoods, Exotic Wood, Furniture Quality Plywood, and Hardwood Flooring
    • Rangate
      Woodworking Machinery, Supplies and Knowledge
    • J and B Hardwood Co.
      Specializing in Quality High Altitude Appalachian and Northern Appalachian Hardwood Lumber
    • Wood Doctor's Rx, LLC
      Wood Processing Seminars, Kiln Operators Seminar & Training, and Advanced Drying Evaluation & Training

    Become a Sponsor today!