1/2" x 5-1/2" MDF S4S Primed Board – 16'

This medium-density fiberboard (MDF) trim board offers a smooth, uniform surface ideal for interior trim projects. With sharp square edges and a factory-primed finish, it’s ready for paint and perfect for modern baseboards, casings, or custom trim work.

• Dimensions: 1/2" thick x 5-1/2" wide x 16' long

• Material: MDF (Medium-Density Fiberboard)

• Finish: Factory-primed and paint-ready

• Profile: S4S (square edge)

• Uses: Baseboard, casing, decorative trim, shelving, or panel accents

An excellent value option for clean lines and smooth finishes — available now at Discount Moulding.

Pine vs. MDF – Which Should You Choose?

• FJ Pine is stronger and more impact-resistant, making it ideal for high-traffic areas or where durability matters. Its real wood grain holds fasteners better and resists bowing over time.

• MDF offers a super smooth surface perfect for paint and is often preferred for modern, crisp trim details. It's also more affordable but not recommended for damp areas or where nailing into studs is critical.