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Window Boards

Transform your windows with window boards. Whether you are looking for sturdy MDF window sill or stylish internal window sills, our collection has you covered.

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SAM52 25 x 244 Windowboard 3.66m FSC

SAM52 25 x 244 Windowboard 3.66m FSC F522524C
£72.73 inc VAT Each
£19.87  per metre
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SAM52 25 x 219 Windowboard 3.66m FSC

SAM52 25 x 219 Windowboard 3.66m FSC F522521C
£57.01 inc VAT Each
£15.58  per metre
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SAM52 25 x 294 Windowboard 3.66m FSC

SAM52 25 x 294 Windowboard 3.66m FSC F522529C
£88.61 inc VAT Each
£24.21  per metre
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SAM50 MDF Windowboard 4200 x 219 x 18mm Primed FSC

SAM50 MDF Windowboard 4200 x 219 x 18mm Primed FSC F501821D
£84.85 inc VAT Each
£20.20  per metre
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SAM50 MDF Windowboard 4200 x 194 x 18mm Primed FSC

SAM50 MDF Windowboard 4200 x 194 x 18mm Primed FSC F501819D
£74.00 inc VAT Each
£17.62  per metre
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Jewson window boards are high-quality MDF window sills manufactured from FSC-certified responsible and sustainable timber. Free of any knots or defects, with a smooth primed surface ready for painting, they are a quick and easy way to give newly installed windows a visually appealing sill, or to replace old sills with modern MDF window boards for a tidier finish.

MDF window sills are moisture-resistant, allowing them to stay in good condition for longer in humid interiors, and reducing the risk of warping due to expansion in high humidity. The primed surface can be painted, or left in its original white finish for an even faster project.

Along with our window boards, you'll find a full range of windows and internal doors at your local Jewson builders' merchant. With fixtures and fittings, powertools and paints, you can pick up everything you need to install windows and doors to a professional standard, in a single visit to your local branch.

Our MDF window boards come in a variety of dimensions to give you plenty of choice, with internal window sills measuring from 219mm to 294mm in a standard 25mm thickness, which gives your sills good rigidity to support the weight of any ornaments and other items placed on them over the years to come.

Window boards are supplied in a standard length of 3,660mm and are priced per board. If you need a specific length, ask in-branch about our cutting & milling facilities, as we may be able to cut your MDF window sill to length before collection.

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