What is the cheapest source of lumber on BI?

[Carey]

also check Pierson Building Supply in Shipman (808)966-7458
There is a Home Depot in Hilo & a Lowes in Kona....
One of the problems here with build your own trusses are the truss plates... before you begin, make sure your plans comply with the County Building Dept requirements

The websites for the places Pam suggested are:

http://www.trojanlumber.com/
http://www.hpmhawaii.com/
http://www.honsador.com/