Another source would be Frost Hardwood Lumber Company | Quality Wood and Related Products for the Woodworking Industry
in San Diego
. Although if you can locate, & get in touch with a few boatbuilders in your area, or otherwise, odds are they'll give you such a piece for free, or at most a 6-pack. And a lot of the lumber distributors mentioned might be kind enough to give you some POC's.
Also, try both the Wooden Boat Forums
, as well as the periodical of the same name (especially the classifieds section in the back).
If you're not 100% set on teak, take a look at Sapelle & Meranti, including/especially in Marine
Ply form. They're gorgeous woods, often enough used both for hull
construction, as well as interior
joinery. And... a decent percentage of Marine
Lumber distributors will give you sample pieces of about the size which you're looking for, for free.
- Well, kind of free. Perhaps a better term is, to be used as stock in order you to compare them for use on other, & or larger projects. Kind of like you can get small pieces of tile to take home from a place which sells home remodeling materials.
Also, try; dumpsters @ boatyards
"wanted" notices (online & on bulletin boards)... you'll find some cheap
, or gratis, long prior to running out of ideas & resources.
PS: Wisdom would suggest that you post that you've found what you're after, when you find it, or you may be deluged (almost akin to The Great Flood) with responses.