Tongue-and-groove section joint for
exceptional strength and thermal sealing

Durable sandwich construction: inside and
outside steel skins laminated to a 1-3/8"
polystyrene core

Expanded polystyrene core is environmentally safe,
and its R-value remains stable over the life of the door

Attractive stucco embossed (3150), woodgrain elegant
raised panel (3154), and flush model (3155) steel skins are
prepainted inside and out for a durable, maintenance-free finish

10 year warranty against rust-through