Author Topic: Sawing your own Lumber  (Read 333 times)

0 Members and 1 Guest are viewing this topic.

Offline Wood_Slice

  • Posts: 74
Sawing your own Lumber
« on: February 23, 2021, 02:53 PM »
I have a 17" Grizzly band saw and wanted to saw some logs into useable lumber. I can probably safely saw a 16" diameter x 3-4 feet length of a log with a little jig-rigging on my band saw for support and squaring. My actual question is lets say I would like the final dried rough dimension of the wood to be 4/4 or 6/4 or 8/4 and so on----> How much extra thickness do I need to add to counteract the drying shrinkage of the wood. Does it shrink? If yes, by how much? 1/16",1/8", 1/4" etc. Different wood species different shrinkage rates.

I sawed some 14" diameter x 2 foot logs already and the width was honestly just spit balling whatever looked OK to my eye while trying to cut out the heartwood.
DF 500 + Assortments | ETS EC 125/3 EQ | CT MIDI + CT-Fi| MFT3 + Elements| Installer's Set |

Festool USA does not pre-approve the contents of this website nor endorse the application or use of any Festool product in any way other than in the manner described in the Festool Instruction Manual. To reduce the risk of serious injury and/or damage to your Festool product, always read, understand and follow all warnings and instructions in your Festool product's Instruction Manual. Although Festool strives for accuracy in the website material, the website may contain inaccuracies. Festool makes no representations about the accuracy, reliability, completeness or timeliness of the material on this website or about the results to be obtained from using the website. Festool and its affiliates cannot be responsible for improper postings or your reliance on the website's material. Your use of any material contained on this website is entirely at your own risk. The content contained on this site is provided for informational purposes only and does not constitute professional advice.


Offline mino

  • Posts: 337
Re: Sawing your own Lumber
« Reply #1 on: February 23, 2021, 04:44 PM »
Your problem is not shrinkage but warping as every wood will warp a bit while drying. Even restrained one.

The warping reserve so you can plane/joint it later is way bigger compared to the shrinkage reserve you may need.

1/4 on each side for softwood is a safe bet, less if you have a way to restrain the wood well while drying or it is some quality hardwood which warps less
The Machine does not have a brain. Use Yours!
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AGC 18(@AGC 125 flange), BHC 18, C 12, CTM 36, DRC 18/4, PSC 420, RS 200, TSC 55
Narex: EDH 82, EFH 36(@LR32), EVP 13 H-2CA, S 57 A
My Precious FS/2: 376, 376, 376 holy, 632, 1016 holy, 1400 holy, 2520