End and center stiles are constructed with galvanized steel, providing superior strength and resistance to rust and corrosion.

Tongue and groove joint construction seals and aligns the sections for a snug, weather-tight fit.

This robust fastening system ensures leak-proof and rust-proof joints, adding years to the life of the door.

The bulb-type vinyl bottom weather seal fits tightly against the floor, sealing out moisture, light, and energy leaks.

Galvanized steel hinges and self-lubricating rollers are designed for long life and smooth, quiet operation.

Optional laid-in-place CFC-Free polystyrene insulation provides a 6.0 R-value on the 1030i. The 1030i offers solid-core and steel-backed polystyrene for a 12.0 R-value. The 1030i also offers a standard thermal break that minimizes the transfer of exterior temperatures and drafts and reduces everyday wear and tear between sections.