I own a hardware/building materials store in Talkeetna. Even so, my source for all Boise products including VersaLam is Spenard Builders. They have it in stock in all of there stores. 1 3/4" x 11 7/8" size is available in both the Wasilla and Fairbanks stores.  You could also have Homestead Supply get if for you or Walt over at Glennallen Builders Supply...however, both will most likely get if from SBS.

As for longer sheets of plywood. Very rarely do I find anything other than 8' stock in Alaska. Scarfing is the way to go.

Once you get the hang of scarfing plywood, you'll never want to pay extra for longer sheets again. Here are a few random tips:

• Create a good scarfing platform. Get some MDL MELAMINE that is at least 3/4" or 1" thick. It will come in a sheet size larger than the 4x8 ply you'll be scarfing. Put in on enough sawhorses or a table to be sure it's nice and flat and you have a good surface for getting nice flat scarfs.
• Lay out your sheets with a 3in. offset to get an 8:1 joint in a 3/8" thick panel. Put some scrap ply above and below the sheets you're scarfing before planing to protect the top and bottom edges.
• Use a power planer or a good disk sander with 36grit disk and have at it, grinding off the surface so you get a nice good slant. See this post for some good before and after photos.
• Check your efforts as you go with a straight edge and get it as flat as you can. It doesn't need to be perfect, as you'll be using filler with epoxy and the resulting glue joint will always be stronger than the wood. If you don't believe me, try breaking some of your scarfed trimmings and you'll see that the scarf never breaks before the wood will.
• Layout your bottom sheet of ply on the melamine with a sheet of of wax paper under the scarf. Screw it down to the melamine.
• Before you get the glue out, put on the top sheet of ply and adjust so that it is as flat and straight as can be. Lay another piece of ply or straight edge along the side of the ply to be sure it is straight.
• Screw down the FAR EDGE of the ply, away from the joint to the melamine. This way it won't move around on you while you're gluing it. You can lift up the other end for gluing as needed. Prop it up with a 2x4 while you're working with it.
• Brush epoxy on both glue faces so they soak it up. Then mix up a good peanut-butter thick paste of epoxy and high adhesive filler and put on just enough so that it will fill all voids. Most people use too much.
• Lay the top sheet of ply down and cover with another sheet of wax paper and then with a 12in. wide sheet of 3/4" ply over the joint. You can use 2in. drywall screws and screw this all down and call it good if you like. It's a minor thing to go back and fill the screw holes later. If you don't want holes, screw only on the sides of the ply which will likely be trimmed off anyway and clamp with a 2x6 over the joint. Use a small piece of wood in the middle to distribute clamping pressure. << photo of clamp jig
• Once the epoxy has cured, remove excess with a heat gun and scraper or grind it off with a disk sander.

Versa-Lam is made here in Oregon and in Louisiana by Boise. You want to get it from the Oregon plant where fir is used as opposed to Louisiana where they use poplar which is not as rot resistant.

Boise Building Materials Distribution

8720 216th Ave SE
P.O. Box 168
Woodinville, WA 98072
Telephone: 425.486.7477
800.342.2299
Fax: 425.402.1567

Boise Wood Products
Engineered Wood Products
Anchorage, AK
907.222.4008