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Wood Drying Cycle Estimate V1

Enter wood species, dimensions and moisture levels to tabulate time–moisture estimates from matching reference-batch data.

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Interpolated estimate from reference-batch data, not a kiln control schedule. Time cannot be calculated without suitable data. No temperature/RH settings or quality/HT certification.

1. Wood and targets

Wood species / varietyLength (mm)Width (mm)Thickness (mm)Initial wood moisture w₀ (%)Target wood moisture wₙ (%)Table interval Δt (hours)

Choose a suggestion or enter another species. Specify the species/variety when known; the name selects no automatic drying coefficient.

Dimensions identify the specification that must match the reference batch. V1 does not automatically scale time for thickness, width or species.

w is wood moisture on an oven-dry mass basis, not air RH. Wood MC can exceed 100%. The table interval only divides the output; it is not a prescribed fan-reversal or sampling interval.

2. Reference-batch measurements

Reference kiln and drying conditionsBatch ID / measurement source

Reference-batch measurement points
Elapsed time (hours)	Measured wood moisture w (%)	Remove

Enter at least 2 points with strictly increasing time and non-increasing MC; flat segments are allowed. Data must cover initial through target moisture; no extrapolation. Review rising measurements instead of automatically smoothing them.

I have checked that the reference data match the species, dimensions, wood condition, stacking, kiln load, measurement method and operating conditions being considered.

Update after an actual cycle

Enter elapsed hours from the current starting point and measured MC. Each reading is kept and re-anchors the remaining estimate. Reading times must increase. Use “Remove last reading” to correct an entry.

V1 update: re-anchor at the latest measured MC and retain the reference-curve shape for the remaining estimate. No automatic rate learning or temperature/RH changes. Changing species, dimensions, initial MC or reference data clears the old reading history. Changing the target or table interval preserves it.

Actual elapsed time (hours)Actual measured wood MC (%)

Actual elapsed time (h)	Measured MC (%)

3. Estimated cycles

Estimated time to target (hours)—

Estimated remaining time (hours)—

Equivalent 24-hour days—

Rectangular volume / piece (m³)—

Output t=0 begins at the entered initial MC. Reaching the target threshold does not establish completion of equalization, conditioning, cooling or acceptance for delivery.

Grey dashed: initial estimate · Blue: current estimate · Purple: actual readings

Estimated cycle	Start t (h)	End t (h)	Δt (h)	Start w (%)	End w (%)

Open batch JSON

Method and scope

V1 method: piecewise linear interpolation between measured points. Threshold time is the first reference-curve crossing. No species/dimension scaling or statistical confidence interval.

Wood Drying Cycle Estimate V1

3. Estimated cycles

Background references