TRIM WINDOW STOOL 6 1/4X 16′ MDF ULSTL638

Solid Window Finish: Trim Window Stool 6 ¼″ × 16′ MDF (ULSTL638)

The Trim Window Stool 6 ¼″ × 16′ MDF ULSTL638 offers a robust and sleek solution for finishing interior window installations with precision and durability. Designed with a full 16-foot length, it minimizes joints so the visual flow stays clean and consistent across your window areas. Because of its 6¼-inch width, it provides ample surface for deep sills and pairs well with thicker trim, yet it still looks balanced and refined.

You install this window stool by cutting it to size, fastening it securely into the sill opening, and making small adjustments to achieve a flush fit. Its flat surface and uniform edges simplify finishing tasks like painting or staining, and it smoothly transitions into casing or trim elements without gaps. This model’s stable MDF composition resists warping or twisting even under changing humidity, which is especially important in climates that swing between dry and damp.

Furthermore, the ULSTL638 supports practical aesthetics: it conceals fasteners, covers raw edges, and provides a stable top surface for plants, decor, or everyday use. It also improves the overall tightness of your window assembly by eliminating unwanted space where dust or small pests might intrude. In short, the Trim Window Stool 6 ¼″ × 16′ MDF ULSTL638 stands as a reliable, visually pleasing, and long-lasting component that elevates both the function and look of your window interiors.

TRIM WINDOW STOOL 6 1/4X 16′ MDF ULSTL638
Type: MDF PRMD