Economical, right down to the core.
When you want an economical, quality door for utility entries in your home, look no further.  The Therma-Tru door's sturdy, steel construction offers years of durability. The famous closed-cell, polystyrene core provides maximum energy efficiency. And our fixed composite sill and compression weather stripping ensure a good, tight seal. The Therma-Tru Door System. A warranted, branded product... at a price you'll love.