Siding Accessories
Siding Accessories
A great siding project comes down to precision — and the right accessories. Millboard’s premium range of siding accessories is designed to deliver a clean finish, lasting protection and seamless compatibility with their composite siding collections. From starter trims to color-matched fasteners, these details help ensure every installation is beautiful, functional and code-ready.
Professional Results, Piece by Piece
Millboard’s siding accessories are engineered for durability, code compliance and visual harmony. Whether you're finishing corners, outlining windows or protecting from pests, each component contributes to a refined, weather-resistant exterior.
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Corner Profiles & Reveal Boards
Choose from internal and external corner profiles to match Shadow Line+ or Board & Batten+ boards. Reveal Boards are ideal for clean transitions around windows and doors. All profiles are Euroclass D fire-rated and available in a wide range of coordinated colors.
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Starter & Closure Trims
Start strong with horizontal and vertical starter trims designed for clean installation from the ground up. Millboard’s perforated closure trim ensures ventilation while keeping insects and debris out of the wall cavity.
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Fasteners & Touch-Up Coatings
Use Millboard’s A2 stainless steel screws for secure board and accessory attachment. For the perfect finishing touch, use color-matched Touch-Up Coatings to cover cut ends and small marks.
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