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Yield EstimatorTimber Recovery & Yield Calculator

Estimate how much usable timber you recover from logs, green sawn or rough stock through sawing, drying and finishing. Calculate waste and your true effective cost per usable unit for accurate pricing.

Recovery Rate %Usable OutputWaste VolumeEffective CostPDF Report
YE

Yield Estimator

Timber Recovery & Yield Calculator

Input Material
unit
Process & Recovery
INR

Cost per input unit, for effective output cost.

OK
Yield Estimation Results
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output
Usable Output
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%
Recovery Rate
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waste
Volume Lost
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INR/unit
Effective Cost
MetricValueDetail
Yield Calculation
About Yield Estimator
Every step from log to finished product loses volume - to saw kerf, slabs, drying shrinkage, planing and defect removal. The yield (or recovery) rate tells you how much usable material survives. This is the single most important number for pricing: if you only recover 55% of a log, your usable timber actually costs nearly double the log price. This tool estimates output and your true effective cost.
Where Is This Used?
Sawmill CostingLog Purchase DecisionsProduction PlanningPricing StrategyMaterial BudgetingProfitability Analysis
Formulas Used
Output volume = Input volume x Recovery rateWaste volume = Input volume - Output volumeWaste % = (1 - Recovery rate) x 100Effective output cost = Input cost / Recovery rateTypical: log to green sawn ~65%, log to finished ~42%
Frequently Asked Questions
Why does my usable timber cost more than the log price?
Because you pay for the whole log but only sell the recovered usable portion. At 55% recovery, every INR 100 of log becomes INR 182 of usable timber cost (100/0.55). Forgetting this is the most common reason small mills under-price and lose money - always cost at the effective post-recovery rate.
What affects recovery rate the most?
Log diameter and straightness (bigger, straighter logs recover more), sawing pattern, blade kerf, defect levels (knots, rot, splits) and how finished the end product is. Rough green sawn timber recovers most; kiln-dried, planed, defect-free finished components recover least because each step removes more.
Are these default rates accurate for my mill?
They are solid industry averages to start from, but every operation differs. Track your own input and output volumes over several batches to find your real recovery rate, then use the Custom Yield option for precise costing. Your actual number is more valuable than any average.
ResourcesView the formulasWood Species DatabaseFormula Library
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