[OM] Re: What to buy, what to buy.

[Andrew Fildes]

Sizes used to be based on the sawn dimension before kiln drying as I  
understand so that KDHD (kiln dried hardwood) was always undersize by  
a consistent amount. 2x4 framing never was. The entry seems to  
confirm this. Scantling dimensions were pretty accurate though as  
it's more important and often precisely surfaced and shaped  
(skirtings, architraves) in stable, fine grained hardwoods.
Andrew Fildes
afildes@xxxxxxxxxxxxx



On 08/05/2008, at 9:34 PM, Chuck Norcutt wrote:

> They have.  Closer to 1-1/2 x 3-1/2.  And 1/4", 1/2", 5/8" and 3/4"
> plywood are no longer those thicknesses.  Now (except for hardwood)
> shrunk by 1/64 or 1/32 and designated (parenthetically) in those silly
> millimeter measurements we normally only use for lens focal lengths.
> All the ugly details are here: <http://en.wikipedia.org/wiki/Timber>
>
> Chuck Norcutt
>
> Moose wrote:
>
>>>
>> Not my piece of territory.
>>> Or I'll come round your place with a length of 2x4.
>>>
>> 1 5/8 x 3 5/8, unless they have shrunk again.
>
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