I had to order a lot of balsa sheets (like 1500pcs) from Indonesia in 91cm x 10cm x 2mm and another 1500pcs that I still have to choose what the thickness will be (1-7mm). Now I have to sell some as I am not planing building a house with it!
As I order a big quantity the price is very interesting and now I can sell a sheet for about 0.8USD!
I am based in Thailand and shipping to US would be around 100USD for 120sheets. But I can ship smaller or bigger amount if someone is interested.
Balsa could be shipped to any other country, shipping price can be checked on http://www.thailandpost.co.th/rate.php. A sheet weight about 30g.
Please contact me if interested.