How to Install Fascia on a Deck

Fascia boards allow you to create a more finished look by covering visible parts of the pressure-treated framing underneath a composite deck. You can color match your fascia to the deck boards, posts and rails. For best results, design your deck so the deck boards overhang the fascia. This prevents rain and snow from working their way behind the fascia and creating warpage, as can happen in installations of fascia flush to the deck board ends.

Chop saw
Tape measure
Construction adhesive
No. 8 deck screws
Hammer and drill set

Instructions

- 1
  Cut a piece of fascia the length of the rim joist -- the joist farthest from the side of the house -- plus an additional 1 ¼ inches to create an overlap of 5/8 inch on each side. This overlap will cover the ends of the fascia on the band joists, which run perpendicular to the rim joist.
- 2
  Apply construction adhesive to the back of the fascia. Press the fascia into place, centered on the rim joist, and have an assistant or a wood clamp hold the fascia against the joist. Secure the fascia with No. 8 screws at each end. Add two No. 8 screws every 16 inches, each at least 1 inch from the sides and ends. Match the color of the screws to that of the fascia.
- 3
  Cut additional pieces of fascia to cover the band joists that meet the rim joist, to their exact length. Glue and screw in place.
- 4
  Cut horizontal lengths of fascia to cover the stair stringers, fitting the fascia to the shape of the tread and riser and to the angle of the stringer’s bottom edge. Glue and screw in place.

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