4-1/4 in. x 16 ft. Primed MDF Base Molding Profile 620

Elevate your interior spaces with the 4-1/4 in. x 16 ft. Primed MDF Base Molding – Profile 620. This Colonial 620 baseboard molding brings strong visual definition and a timeless look to any room, creating a polished transition between floors and walls while protecting the base of your walls from everyday wear and impact.

Constructed from premium medium-density fiberboard (MDF), Profile 620 delivers a smooth, uniform surface that is factory-primed and ready for paint. MDF baseboard eliminates the warping and grain inconsistencies of solid wood, ensuring a flat, consistent profile that holds paint beautifully throughout the life of the installation. At 4-1/4 inches tall, this profile adds a commanding presence to standard 8- and 9-foot ceilings, enhancing the overall proportions of the room.

Each piece runs 16 feet — one of the longest available in the market — meaning fewer seams and less waste on long walls. Profile 620 coordinates with Colonial casing profiles and other MDF trim products in our lineup, making it easy to achieve a cohesive, finished look throughout your entire home. Compatible with all interior design styles including Traditional, Colonial, Farmhouse, and Transitional.

Available at Builders Surplus in Louisville and Florence, KY — serving homeowners, contractors, and remodelers throughout the Louisville, Florence, and Cincinnati metro areas.

Features & Benefits

• Profile: Colonial 620 baseboard
• Dimensions: 4-1/4 in. tall x 16 ft. long (actual: 1/2 in. x 4-1/4 in.)
• Material: Primed MDF (medium-density fiberboard)
• Surface: Factory-primed — smooth and paint-ready
• Installation: 16 ft. length reduces seams; cuts and installs like wood
• Ideal for: Interior base molding, wall-to-floor transitions, new construction, remodeling
• Style: Colonial profile — coordinates with Profile 620 casing and other Colonial MDF trim