H2 'BLUE' treated pine is specially treated to protect against borers and termites and is suitable for interior, above ground use only. It is often used in residential and light commercial applications such as wall frames and roof trusses.

H2 ‘BLUE’ is used in areas south of the Tropic of Capricorn, while H2 ‘RED’ is used north of the Tropic of Capricorn as additional protection against a ferocious local termite.