Replies

1. 
   john_c2 | Nov 13, 2021 07:05pm | #1

   https://www.wood-database.com/radiata-pine/

1. 
   user-7627473 | Nov 13, 2021 09:24pm | #2

   I saw that one but I didn't see "movement value" figure listed, maybe I missed it...usually a .00## number

2. 
   gulfstar | Nov 14, 2021 07:58am | #3

   https://www.woodsolutions.com.au/wood-species/softwood/pine-radiata

3. 
   EdWeber | Nov 14, 2021 07:10pm | #4

   Are you trying to figure out how much it will move?
   There is a formula to help figure out the amount.
   You can use some "general" values or if you know the amount off relative humidity change it will be subject to, it will be more accurate.
   https://www.woodcraft.com/blog_entries/woodsense-wood-movement

1. 
   user-7627473 | Nov 14, 2021 08:30pm | #6

   Yes on movement. I could do it with shrinkage rate and one method. I was looking for the "movement value" number as is used in Lee Valley wheel chart and also given for many species via US Gov. Wood Handbook. As mentioned above this is typically a number like .0021...for flatsawn EW Pine.

1. 
   gulfstar | Nov 14, 2021 10:31pm | #7

   .0027 flat sawn and .0020 quarter sawn.

1. 
   user-7627473 | Nov 15, 2021 06:08am | #9

   Thanks. curious...how did you come by the numbers?

1. 
   gulfstar | Nov 15, 2021 06:59am | #11

   Its in the link above i sent you .

2. 
   user-7627473 | Nov 15, 2021 08:48am | #12

   Yea, saw those #s...but that unit value is listed as .27 for fs...usually "movement value" figures are 0.00##...couple of zeros after the decimal unless Im missing something

1. 
   gulfstar | Nov 15, 2021 08:57am | #13

   0.27%; 0.27 / 100 = 0.0027

4. 
   Deleted | Nov 14, 2021 08:29pm | #5

   “[Deleted]”

5. 
   john_c2 | Nov 15, 2021 02:54am | #8

   What are you building? I've never been concerned with the particular numbers for a species. Use proper techniques to allow for movement, and the scientific numbers won't matter.

1. 
   EdWeber | Nov 15, 2021 10:12am | #14

   "Use proper techniques to allow for movement, and the scientific numbers won't matter."

   I understand what you're saying but "generalizing" doesn't always work.
   It's not always practical or possible to build for the worst case scenario.
   If I build out of white pine, it has the potential to move more than twice as much as Black Walnut.
   Just food for thought

1. 
   john_c2 | Nov 15, 2021 03:33pm | #17

   Really? Because white pine is about as stable as you can get. I've glued pieces crossgrain to white pine and it's stayed stable and flat. If I had to pick a wood for minimal movement alone, it would be eastern white pine. Quarter sawn is close to plywood in stability.

6. 
   user-7627473 | Nov 15, 2021 06:12am | #10

   Some different "plank" furniture. Inherited some wide boards of the Radiata that will probably be mixed with some EW Pine - just wanted to get specific sense of difference.

7. 
   EdWeber | Nov 15, 2021 12:17pm | #15

   Raiata Shrinkage:Radial: 3.4%, Tangential: 6.7%, Volumetric: 10.7%,
   Eastern White Shrinkage: Radial: 2.1%, Tangential: 6.1%, Volumetric: 8.2%

   Those are the hard numbers, (Max potential) there are other factors that will effect exactly how much the wood will actually move.

8. 
   user-7627473 | Nov 15, 2021 12:25pm | #16

   Thanks all for the feedback, much appreciated