Well, if that board is S4S I'd keep buying lumber from that supplier!
If it is S2S then that is about what I've experienced. Jointing and
then replaning the faces will take it down to about 1" depending on
twist, cup, and bow. In any event, it does vary even with lumber from
the same supplier and of the same species. Just my experience, not
great standard there.
Noel
On Sun, 2009-12-06 at 20:20 -0500, Senn, Bruce wrote:
> Well, I always thought that 5/4 lumber referred to the finished thickness. I just measured a 5/4 board in my shop and is 1 3/16. Oh, well.
>
> Bruce.
>
> -----Original Message-----
> From: HP-3000 Systems Discussion [mailto:[log in to unmask]] On Behalf Of Noel Magee
> Sent: Sunday, December 06, 2009 6:32 PM
> To: [log in to unmask]
> Subject: Re: OT - Lumber size
>
> Oops, meant to send this to the whole list. Trying again.
> Noel
>
> -------- Forwarded Message --------
> From: Noel Magee <[log in to unmask]>
> To: John Pitman <[log in to unmask]>
> Subject: Re: [HP3000-L] OT - Lumber size
> Date: Sun, 06 Dec 2009 15:22:43 -0800
>
> Hardwood lumber thickness is commonly measured in quarter inches. 5/4
> is simply 1 1/4 rough spec. It, also, is planed down to get to S4S
> (Smooth on four sides) not to mention jointed. Just figure it as 3/4"
> for 4/4 and 1" for 5/4 as finished dimension.
>
> Be Well,
>
> Noel (just in from the garage where I made some 4/4 stock into 3/4"
> thick boards for a glue up) Magee
>
>
> On Mon, 2009-12-07 at 08:44 +1100, John Pitman wrote:
> > Please tell me this isn't so.....
> >
> > I bought a cubby house kit for g'daughter for Xmas. Even though local web site, the kit comes from USA. Sorting through all the wooden parts and labelling them so it will assemble easily, I read the book thoroughly. There is a table in the front explaining that the numbers used to refer to std sizes (nominal) translate to actual sizes that are smaller. I understand this, and know for instance that what we call 4 x 2 isnt really 4" by 2". Its under that due to dressing.
> >
> > But some of the sizes make me blink.... 5/4 ??? What is that ? The last time I saw a fraction like this was in primary school, being taught to write it as either 1.25 or 1-1/4 . Eventually by a process of elimination, it turns out that anything actually 1" thick is called 5/4, because it was originally 1.25" .. I think?
> >
> > Is this common in US please?
> >
> > The other odd part, for a printed manual, is that all the metric equivalents have the decimal point off by one place....3/4 is given as 1.9mm.
> >
> > Tks
> > jp
> >
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> >
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