Local processingBandingkan tiga metode dalam satu tampilanBeralih antara m³ dan ft³
Kalkulator Volume Log (Smalian, Huber, Newton)
Hitung volume log di browser dari panjang serta diameter pangkal dan ujung.
Beralih antara Smalian, Huber, dan Newton sambil menyimpan aturan regional di paket terpisah.
Users can define product lengths, quality classes, and price tables for local markets anywhere in the world.
Local processing
Bandingkan tiga metode dalam satu tampilan
Beralih antara m³ dan ft³
Simpan input hanya di perangkat
Beralih antara Smalian, Huber, dan Newton sambil menyimpan aturan regional di paket terpisah.
Safety notice
This tool supports cutting decisions only. It does not replace safe felling, bucking, or loading practices.
Follow protective gear requirements, supervisor instructions, and local laws first.
Prices and quality classes are user-defined. They are not market defaults.
How to use
1
Enter stem length, taper, butt diameter, and either top diameter or taper rate.
2
Define product lengths, quality classes, a price matrix, and defect positions.
3
Choose the objective: maximize value, maximize yield, or prioritize piece count.
4
Review the recommended cut plan, alternatives, and diagnostics, then share it with URL or JSON if needed.
Contoh
Maximize value with 4 m and 2 m products
Input / Output
Input: Stem length 10 m, butt diameter 40 cm, top diameter 20 cm, product lengths 4 m and 2 m, prices 4 m = 80 and 2 m = 38, no defects, objective = value
Output: 4 m x 2 pieces and 2 m x 1 piece, total value 176, yield 100%
Prioritize piece count with 5 m and 1 m products
Input / Output
Input: Stem length 10 m, product lengths 5 m and 1 m, prices 5 m = 100 and 1 m = 5, objective = count
Output: 1 m x 10 pieces, total value 50, piece count 10
Avoid a blocking defect
Input / Output
Input: Stem length 10 m, blocking defect from 4.8 m to 5.2 m, product lengths 5 m and 1 m
Output: The 5 m log is excluded by the defect, so the plan falls back to 1 m pieces or waste
FAQ
Can I add more product lengths and quality classes?
Yes. Add rows to the tables and define different standards for each market or buyer.
What is the difference between value, yield, and count?
Value prioritizes price, yield prioritizes saleable length or volume, and count prioritizes the number of pieces.
Can defects be entered as points?
Yes. Enter them as very short ranges if needed, and use the defect buffer to widen the protected zone.
Can I use feet and inches?
Yes. Length and diameter units can both be switched. Internal calculations are normalized behind the scenes.
Does the page auto-convert board feet or local timber rules?
No. This version expects you to define the price table yourself for the market you work in.
Glosarium
Bucking
The process of cutting a stem into logs with specific product lengths.
Taper
The rate at which diameter becomes smaller from the butt toward the top.
Small-end diameter
The diameter on the thinner end of a log. It is often used for grade checks.
Kerf
The saw width lost during cutting.
Blocking defect
A defect area that makes a candidate cut infeasible when crossed.
Quality class
A grade such as A, B, or C that is tied to a price table.