Finger Joint Production Calculator
White cells are editable inputs; blue cells are calculated.
Finger Joint Production Calculator
Operating weeks per year52
Statutory holidays per year12
Operating shifts per day2
Hours per regular shift8.0
Lunch break (min.)30
Shift break (min.)15
Efficiency loss on 3rd shift (%)10
Order file booked (%)90
Dimension changes per shift4
Time to change dimension (min.)8
Operational downtime (%)15
Time waiting on downstream (%)5
Time waiting on upstream (%)5
Avg. FJ block length (m)2.47
End trim for square up (mm)3.175
Lineal feed speed (m/min)100
Stop time for jointing (sec.)0.0
Decel/accel distance (m)0.200
Max FJ infeed blocks per minute40
Finger joint length (mm)23.800
FJ block thickness (mm)38.100
FJ block width (mm)139.700
Eased edge radius (mm)3.175
Min. planer allowance (mm)0.508
Lamella thickness (mm)35.000
FJ RF tunnel glue cure time (sec.)7
Lamella width (mm)136.450
RF tunnel minimum length (m)12
Available hours per year3,968
Production hours per year2,304
Operational readiness (%)58%
Net volume per year (m³)64,426
Volume per available hour (m³)16.2
Volume per production hour (m³)28.0
Fibre loss (m³)8,264
Fibre loss (%)12.8%
FJ blocks per available minute23.2
FJ blocks per producing minute40.0
Version 2026-09-04©International Online Expos Inc.
Operating Data (inputs)
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Production Data (inputs)
Production Data (outputs)
Lamella width (mm)?Calculates width after removal of eased edge (if applicable).
136.450
RF tunnel minimum length (m)?Calculated length of an RF tunnel required if resorcinol glue is used.
12
Available hours per year
?
Total hours including breaks (except lunch breaks).
3,968
Production hours per year
?
Available production hours net of breaks, downtime and lost time due to lack of order file.
2,304
Operational readiness
?
Equipment availability net of breaks and downtime.
58%
Net volume per year (m³)
?
Net volume after fibre loss with square-up, fingers, and lamella planing.
64,426
Volume per available hour (m³)?Volume per hour based on total hours available to operate.
16.2
Volume per production hour (m³)?Volume per hour based on operating hours available (after breaks and downtime).
28.0
Fibre loss (m³)?Losses for end square-up, fingers and planing to lamella size. Losses for flying cut off saw are not included.
8,264
Fibre loss
12.8%
FJ blocks per available minute
23.2
FJ blocks per producing minute
40.0
Version 2026-09-04©International Online Expos Inc.