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Window Board

Upgrade your home’s interior with our premium window boards, available in a variety of styles to match your decor. Our MDF window boards offer a smooth, paintable finish, perfect for modern homes. They’re engineered for durability and resist warping, making them a reliable choice for any window.

For a timeless, natural look, consider our oak window boards. Crafted from high-quality oak, these boards bring warmth and elegance to any space with their rich grain and texture. Whether you’re updating a traditional or contemporary interior, our window sill boards provide the perfect finishing touch.

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  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 244 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...
  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 269 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...
  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 194 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...
  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 219 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...
  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 168 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...
  • FIBRETRIM%20WINDOW%20BOARD.jpg.jpeg

    MDF Primed Fibretrim Window Board FSC 25 x 294 x 3660mm

    MDF Primed Window Board is used to seal the bottom of a window and cover the gap between the window and the wall in which it is installed. It makes use of a window ledge and is simple to cut and install. The primed white window board is paintable in any...

Upgrade your home’s interior with our premium window boards, designed to suit a wide range of styles and décor. Our MDF window boards feature a smooth, paintable surface, ideal for creating a modern finish. Built for strength and stability, they resist warping and offer long-lasting performance.

For a natural and timeless style, our oak window boards are a popular choice. Made from high-quality oak, they bring warmth, elegance, and character with their rich grain and texture. Whether your home is classic or contemporary, our window sill boards add the perfect finishing detail.

Window board styles

  • MDF Window Boards: Smooth, paintable, and perfect for modern homes.
  • Oak Window Boards: Natural elegance with distinctive grain patterns.
  • Laminated Window Boards: Hard-wearing, resistant to wear, and available in various finishes.
  • UPVC Window Boards: Low-maintenance, moisture-resistant, and suitable for any space.
  • Bullnose Window Boards: Rounded edges for a sleek, polished look.
  • Pine Window Boards: Lightweight with rustic charm, ideal for traditional interiors.

How to fit a window board

Fitting a window board is simple and can instantly improve both style and function. Follow these easy steps:

  1. Measure the window sill area carefully.
  2. Cut the window board to the correct size for a snug fit.
  3. Apply adhesive to the underside of the board.
  4. Press the board into place and use clamps if needed while the adhesive sets.
  5. Seal any gaps with caulk for a neat finish.
  6. Paint or seal your MDF window board or chosen material as required.

For more expert guidance on choosing the right window board for your home, contact your local Howarth branch today.