Log Scaling Assistant is a tool that performs niche calculations specific to the lumber industry. It allows you to easily calculate the volume of logs and keep a detailed record of all your volume calculations.

The following log rules and formulas for volume calculation are supported by the app:

Board Foot Log Scaling:
+ Scribner Log Rule
+ Doyle Log Rule
+ International 1/4" Rule

Cubic Volume Log Scaling:
+ British Columbia Metric Scale
+ Bruce's Butt Log Formula
+ Huber's Formula
+ Newton's Formula
+ Smalian Formula
+ Sorenson Formula
+ Subneiloid Formula
+ Two-End Conic Formula

All volume calculations can be saved to a result sheet. The overall volume per result sheet will be computed automatically for you. Result sheets can then be exported via e-mail or printed via Air Print.

Acknowledgement: Icons provided by

What’s New

Version 1.1

This app has been updated by Apple to use the latest Apple signing certificate.

New in this version (1.1):
- Updated Formula for metric Sorenson calculation.
- Added detail information on the cubic volume formulas being used by the calculator. Simply press the "?" button to see the basic formula that is used for volume calculation.

PS: Dear users, if you like our app please consider reviewing us in the App Store. If you experience any problems or if you would like to request some new features please feel free to send us an e-mail.

Ratings and Reviews

1.0 out of 5
2 Ratings

2 Ratings

Tom 0987 ,

Log calculator

Can’t do much with it. Was hoping to keep track of species. Waste of $3

App Privacy

The developer, fh-solutions, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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