The Frame Destination mats look to be a good deal. It says on there that the backing board is separate. They recommend foamcore, but you could always use another piece of matboard w/o the window if you want instead. I guess it all depends on how you plan to mount the prints. If you order from FD, I'd at least get the Alphamat 4-ply, and wouldn't hesitate to get the 8-ply if you feel it would compliment your work well.
We, at Lodima Archival Materials are sponsors here at APUG (under "Lodima") and we have the lowest prices for museum quality board and by far the finest quality board. 100% acid-free mat board does not protect the prints as well as ArtCare Board--the only board we sell. See the article on our web site http://www.lodimaarchivalmaterials.com. The article consists of an interview with the inventor of ArtCare Board, along with results of testing that compares ArtCare Board with other 100% acid-free all rag museum board.
All of our window mats are custom cut with our computerized mat cutter to your specifications. No "standard" sizes, although since we are first and foremost photographers ourselves, we are happy to make recommendations. And we have no minimums.
Do the cheapest Frame Destinations mats come with any kind of backing?
We sell the mats and backing board separately since different people are doing different things. Under the “Components” section of our website you will find “Mat Board”, “Mount Board” and “Uncut MatBoard”. Foamcore is the least expensive option for backing board. The least expensive foamcore is regular and we also carry Bainbridge Artcare treated acid free archival quality foamcore. Our least expensive papermat board is ok for temp framing. It is made of wood pulp so it is not naturally inert. Although it is buffered so that it is acid free, it will over time return to being acidic. You might consider using the papermat and regular foamcore for your display but if anyone wants to buy a print then I would move it to Artcare foamboard and Bainbridge AlphaMat or AlphaRag mat boards which are made of alpha cellulose or cotton rag (naturally inert materials). These mat boards are also buffered and treated with the Artcare process so they are museum quality.