I believe you will find that white celotex (
http://www.celotex.com/products/residential/reginssheathingfr.htm  )
and masonite as developed by Mr. Mason of Mississippi
(  http://www.masonite.com/masonitedom/html/company_profile_of_masonite_co.html  )
are two very different materials. The white celotex was used as an interior wall covering
during the 40's and early 50's. The tar impregnated celotex was and still is available to be
used as sheathing on the exterior of wood frame construction. The white celotex is
general not commercially available any more. I do not believe celotex could really be machined
to give the appearance of T&G material where as masonite is the original interior paneling
material.

Bryan
======

"J.A. Drew Diaz" wrote:

> Ian Evans wrote:
>
> > Dear BP-ers,
> >
> > Part of the downside of having a website about old houses is getting questions from people which I can't answer. This is one of them. Anyone out there know what 'beaver board' is? You'll get the credit when I pass on the answer ...(just assuming there is one).
> > And what should she do about it?
> >
> >      Can you please tell me exactly what beaver board is? This material is
> >      what my walls are made of and I was told that it was used for a short while
> >      before sheet rock. I personally find it next to impossible to paint, or clean.
> >      If someone can help me I would appreciate it.
> >
> >      Regards
> >      Lisa
> >
> >      at [log in to unmask]
> >
>
> I believe that it is a material akin to "Masonic' both in color & texture-
> @ one time Stanley sold planes specific to this material,
> router planes if memory serves me correctly that were to give it that
> T & G look....
>
> Not to be confused w/ the board of Beaver State College of Pa..
> which is evidently contemplating renaming the school as graduates are
> having some trouble getting taken seriously..
>
> DD