Deck with a curved layout, dining area, relaxation zone, and built-in firepit.

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What Is a Fascia Board on a Deck?

What is a fascia board on a deck — white fascia boards finishing the perimeter of a front porch deck with steps, black metal railing, and landscaped garden beds

Most people focus on the deck surface and forget the edges. A fascia board is what turns raw, exposed rim joists into a clean, finished perimeter - and it protects your framing from moisture and pests at the same time. Here's everything you need to know about deck fascia boards, from materials to installation.