The bulletin boards which are designed for outdoor use differentiate greatly from normal indoor bulletin boards whereby outdoor bulletin boards can withstand harsh cold weather and forces of nature such as extreme winter and very hot summers.
Many bulletin boards are made from cork, which are probably the ones you noted with some similarity to plywood. Bulletin boards can also be made from fabric or from cardboard or foam material.
Buying bulletin boards in bulk rather than in low numbers can save you money. The website http://www.ontimesupplies.com/bulletin-boards-bulk.html offers bulletin boards with up to a 49% discount.
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At Walmart
Ann Courts has written: 'First grade bulletin board ideas' -- subject(s): Bulletin boards, Handbooks, manuals 'Personalized bulletin boards'
The electronic bulletin boards are in every gate. Gates are between every town/city and route
There are a number of places you can buy bulletin boards. Almost any stationary store will sell bulletin boards. Staples, Grand & Toy, and Wal-Mart are places to start.
There are several types of Bulletin Boards. Three types are the traditional cork, vinyl bulletin boards and fabric bulletin boards. Theses all range from a heavy duty to a light duty board. There is also a huge selection of sizes available pre-made. Of course if you can't find what you are looking for size or color wise specifically, you can always have your bulletin board custom made.
Lloyd Kendall has written: 'Bulletin boards for the classroom' -- subject(s): Teaching, Bulletin boards, Aids and devices
Robert A. Hein has written: 'Superconducting DC and AC machines' 'Easy bulletin boards' -- subject(s): Bulletin boards
Bulletin boards can be bought for affordable prices from Amazon, with a cork boards starting at just $7. More expensive, but still affordable, durable boards can be bought at higher prices from Staples and other sellers.