On 16 Dec, 09:26, " wrote:
On Dec 15, 4:17*pm, Osprey wrote:

I am building some external doors, and on a US forum was advised that
in US they have a product that is Marine Ply with vertical
grooves .... so looks as aesthetically pleasing as T&G ... but has
dimensional stability of ply.

In US this is known as * T-111 *sheet. * Or T-111 siding

Initially it had a rough-sawn, textured surface with vertical grooves
milled every 4 or 8 inches. Thickness ranged from 3/8 inch to 3/4
inch. Usually fabricated from Douglas fir, but also in redwood.

Anybody know of an equivalent product in UK ?

It may be worth chatting to Robbins. In their catalgue they have
something which may be similar (bottom right of page 1)http://www.robbins..co.uk/Pdf%20File...on%20Sheet.pdf

Thanks ... I have dropped them a mail.


An alternative option would be to mill in longitudinal grooves into
Marine Ply sheet to simulate t&g ..... anybody done this ? ... is
this practical without compromising the waterproof properties of the
sheet.
It would be stained finish.