Uploaded November 2025 | Updated September 2026, 9 hours ago
With time comes experience and with experience comes speed. Today I show you how I keep production up at my sawmill using a rule that many of you may already know but never put a name on it. The 70% rule. I'll show you my reference sheet today that I use to help identify exactly what cant size I can get from each log size before a blade ever touches the log.
Business mentioned in the video from Quebec Canada : Grison Forest Products monbois.ca
70% Rule Mentioned in the video:
Example Reference chart:
Small End Diametre (inches) / Max. Cant Size
6 / 4 (6 inches x 0.7 = 4.2 rounded down to nearest lumber size = 4 inches)
7 / 4.75
8 / 5.5
9 / 6.25
10 / 7
11 / 7.75
12 / 8.5
13 / 9.25
14 / 10
15 / 10.75
16 / 11.5
17/ 12.25
etc.
My sawmill shown in this video:
Clarke Portable Sawmill model 350-38
Other models available from Clarke Portable Sawmill can be found at:
clarkeportablesawmills.com
or by calling (705) 799-2871 or (705) 799-1979
Mikron Computer Setworks shown in this video:
MIkron SW-350-PRO-CK
lyuts-tech.com/product-page/setworks-for-cooks-sawmill
Other Brand-specific Computer Setworks available from Mikron as well at:
lyuts-tech.com/computer-setworks-shop
UAB "Mikron LT"
02189, Lithuania, Vilnius, Meistrų str. 8
info@mikronglobal.eu
For USA and Canada:
+1 678 399 1995
Call Hours: 6 AM - 3 PM EST/EDT
+370 621 11 365
+370 663 48 078
Call Hours: 10:00 - 19:00 CET
Sawmill lasers shown in this video:
Apinex
Toll Free:
From USA & Canada : 1-877 987 2783
From UK : 0 800 016 3373 (from 3:00 pm to 11:00 pm - UK Time)
info@apinex.com
Model: TZ16X70-520L 50mw
apinex.com/ret2/TZ16X70-520L.html
#mikron #mikron-global #laser #sawmilllaser #laserline #treecutting #miniskidsteer #portablesawmill #sawmillbusiness #sawmill #sawmilllife #clarkesawmill #kubota #dieselengine #dieselpower #forestry #forestryequipment #forestrymachines #martatch #bandsawmill #sorting #diy @produitsforestiergrison4704 #apinex
With time comes experience and with experience comes speed. Today I show you how I keep production up at my sawmill using a rule that many of you may already know but never put a name on it. The 70% rule. I'll show you my reference sheet today that I use to help identify exactly what cant size I can get from each log size before a blade ever touches the log.
Business mentioned in the video from Quebec Canada : Grison Forest Products monbois.ca
70% Rule Mentioned in the video:
Example Reference chart:
Small End Diametre (inches) / Max. Cant Size
6 / 4 (6 inches x 0.7 = 4.2 rounded down to nearest lumber size = 4 inches)
7 / 4.75
8 / 5.5
9 / 6.25
10 / 7
11 / 7.75
12 / 8.5
13 / 9.25
14 / 10
15 / 10.75
16 / 11.5
17/ 12.25
etc.
My sawmill shown in this video:
Clarke Portable Sawmill model 350-38
Other models available from Clarke Portable Sawmill can be found at:
clarkeportablesawmills.com
or by calling (705) 799-2871 or (705) 799-1979
Mikron Computer Setworks shown in this video:
MIkron SW-350-PRO-CK
lyuts-tech.com/product-page/setworks-for-cooks-sawmill
Other Brand-specific Computer Setworks available from Mikron as well at:
lyuts-tech.com/computer-setworks-shop
UAB "Mikron LT"
02189, Lithuania, Vilnius, Meistrų str. 8
info@mikronglobal.eu
For USA and Canada:
+1 678 399 1995
Call Hours: 6 AM - 3 PM EST/EDT
+370 621 11 365
+370 663 48 078
Call Hours: 10:00 - 19:00 CET
Sawmill lasers shown in this video:
Apinex
Toll Free:
From USA & Canada : 1-877 987 2783
From UK : 0 800 016 3373 (from 3:00 pm to 11:00 pm - UK Time)
info@apinex.com
Model: TZ16X70-520L 50mw
apinex.com/ret2/TZ16X70-520L.html
#mikron #mikron-global #laser #sawmilllaser #laserline #treecutting #miniskidsteer #portablesawmill #sawmillbusiness #sawmill #sawmilllife #clarkesawmill #kubota #dieselengine #dieselpower #forestry #forestryequipment #forestrymachines #martatch #bandsawmill #sorting #diy @produitsforestiergrison4704 #apinex
