Window Boards

Finish your windows with precision and style using our premium window boards, available in MDF, FR MDF and flexible options. Every board is UK-made, factory-primed, and ready to paint, offering a smooth, durable finish that enhances any interior.

Trusted by both tradespeople and homeowners, our boards are moisture-resistant, easy to install, and cut to exact size for a professional fit every time. Whether you’re renovating a property or completing a new build, MR Mouldings delivers quality that lasts.

Shop Window Boards today to elevate your space, and explore our matching skirting boards for a seamless finish.

Made to order Moisture-resistant MDF Made in Britain

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Stepped Scallop Splayed Ogee Pencil Round Chamfered Bolection Ovolo

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Fire Rated · Euroclass B

Made to order

Pencil Fire Rated MDF Window Board

from £42.00£35.00 /length £19.09£15.91/m

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Made to order

Pencil MDF Window Board

from £7.97£6.64 /length £3.62£3.02/m

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Matches our skirtingCoordinated profile families

Moisture-resistant MDFWon't warp, twist or crack

Made in BritainMachined in our Epsom workshop since 2003

UK delivery in 5–7 working daysOr free collection from Epsom

Window Boards Overview

What Are Window Boards?

Window boards are horizontal surfaces installed at the base of windows, providing protection against condensation and moisture while offering a decorative finish. Whether you prefer a sleek, modern look or a more traditional design, our window boards provide the perfect balance of style and function.

Durability and Materials

Our high-quality window boards are made from MDF, a material known for its durability and resistance to warping. MDF provides a smooth surface, perfect for painting or staining to match your interior decor. If you're looking for more moisture-resistant options, check out our Plastic Skirting Boards, which are ideal for areas exposed to higher humidity.

Customisation and Finishes

We offer window boards for sale in various profiles and finishes to suit different interior styles. Whether you want a simple, modern look or something more ornate, our range includes options to fit your design preferences. For a more minimal finish, you may like our Chamfered Skirting Boards, which offer clean, sleek lines.

Best Uses for Window Boards

Window boards are essential for protecting the interior of your home from moisture and condensation while adding a finishing touch beneath windows. They’re perfect for kitchens, living rooms, and bedrooms where window sills are constantly exposed to condensation. To complement your window boards, consider pairing them with our Bullnose Skirting Boards, which provide a rounded and elegant edge throughout the room.

Installation Tips

Installing window boards is straightforward but requires precise measurements to ensure a proper fit. Use adhesive to secure the boards in place and ensure that they sit flush with the window frame. For an extra polished look, you may want to use Plinth Blocks to frame the base of your doors and windows.

Why Choose Our Window Boards?

At MR Mouldings, our affordable window boards combine style and practicality. They offer a perfect solution for protecting your walls from moisture while adding a decorative touch to any room. If you're after a more detailed look, consider exploring our Ogee Skirting Boards, which feature intricate detailing.

Window Boards FAQ

The common questions, answered — so you order the right profile first time.

What are Window Boards?

Window boards, also known as window sills, are horizontal surfaces installed at the base of windows, designed to protect walls from moisture and add a decorative touch.

What materials are used for Window Boards?

Our window boards are made from MDF, which is durable, smooth, and resistant to warping, making it ideal for both painting and staining.

Can I paint Window Boards?

Yes, all of our window boards come pre-primed and ready to be painted in any colour of your choice.

Where can Window Boards be used?

Window boards are commonly used in living rooms, bedrooms, and kitchens to protect walls from condensation.

Are Window Boards easy to clean?

Yes, window boards are easy to maintain—just wipe them down with a damp cloth to remove dust and moisture.