Wood Movement Calculator
Timber expansion & contraction
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Wood Movement Calculator helps woodworkers, joiners, and furniture
makers predict how much a timber board will expand or contract as
moisture content changes.
Enter your board width, choose your timber species and grain
orientation, and set your moisture content range. The app instantly
calculates the expected movement and flags whether it's low, moderate,
or high risk for your project.
FEATURES
• 40+ timber species with real shrinkage coefficients
• Flat, rift, and quartersawn grain orientations
• Inches and millimetres
• Climate region presets for seasonal EMC ranges
• Visual board diagram showing direction of movement
PRO UPGRADE
• Save calculations by project name
• Share results with clients and colleagues
• Review your full calculation history
A one-time purchase — no subscription.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, David Searson, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- David Searson
- Size
- 30.6 MB
- Category
- Utilities
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Wood Movement Pro $4.99
- Copyright
- © 2026 searson.com