Timberlog - Timber Calculator

Calculate timber volume fast and accurately in the forest, the yard, or the sawmill. Built for foresters, loggers, chainsaw owners, and sawmills, Timberlog turns diameter and length into precise volume in cubic metres, cubic feet (CFT), or board feet (CBF).

Key features:
• Round timber volume from diameter and length
• Sawn timber volume (planks, beams) from width, thickness, and length
• Estimate timber weight
• Fast, one-handed data entry — add or remove logs in seconds
• Large buttons and display numbers, clearly visible in strong sunlight
• Create lists and share them free via email, other apps, and cloud storage
• Print reports or save as PDF
• Generate Excel reports that open in any spreadsheet app
• Add company, customer, and other details to reports

Supported calculation standards (log scaling methods):
Cylindrical Huber formula, Firewood estimation, Standing tree volume by Noonan (Kershaw), Doyle Log Rule, Scribner Decimal C, International 1/4", Ontario Scaler's Rule, Roy Log Rule, Cedar Log Scale (2/3 Rule), Hoppus Rule (Quarter Girth), ČSN/STN 48 0009, NF B53-020, GOST 2708-75, ISO 4480-83, JAS Scale (Japanese Agricultural Standard), A. Nilson, Local Java.
Plus local species volume tables for Czech/Slovak (beech, spruce, oak, pine, pine rhizomes) and Hungarian (oak, beech, acacia, hornbeam and other hardwoods, poplar, softwoods, pine) timber.

Whether you're estimating a lumber harvest, scaling pulpwood, or measuring logs after working with tractors and skidders, Timberlog makes the job faster and more productive.

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App icon designed by Špela Bečaj.