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How to Install Pediments and Pilasters: Door, Fireplace and Window Surrounds
A pediment over a door with a pilaster on each side is the classic door surround. It makes a plain entry, fireplace or interior opening look built in. Spectis pediments and pilasters are molded high density polyurethane (HDP), shipped primed and ready for paint, and they are cut and fastened much like wood trim. This guide covers the pediment styles Spectis makes, how to size a pediment and pilasters to your opening using the Spectis entrance system chart, where a surround works indoors and out,
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Oct 9th 2026