Shop the look
Window boards are
internal UPVC window 'cills'. These are beautifully finished round-edged
boards that will give any room a contemporary feel. And to finish off
we have the perfect end caps too, in matching colours.
Explore our internal window boards range
Internal Window Boards
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Original price £0.66 - Original price £0.66Original price£0.66£0.66 - £0.66Current price £0.66Short Laminated Window Board End Caps - Pair
Trade Superstore OnlineProduct description: Short Laminated Window Board End Caps - Pair Length: 102mm x 37mm x 51mm Quick, easy installations High quality finish Easy ...
View full detailsOriginal price £0.66 - Original price £0.66Original price£0.66£0.66 - £0.66Current price £0.66 -
Original price £15.09 - Original price £30.49Original price£15.09 - £30.49£15.09 - £30.49Current price £15.09225mm UPVC Internal window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 225mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lines...
View full detailsOriginal price £15.09 - Original price £30.49Original price£15.09 - £30.49£15.09 - £30.49Current price £15.09 -
Original price £2.99 - Original price £4.69Original price£2.99 - £4.69£2.99 - £4.69Current price £2.99Laminated End Cap
Trade Superstore OnlineProduct description: Laminated End Cap Size: 300mm x 25mm Double ended Quick, easy installations Various colours available High quality finish Lo...
View full detailsOriginal price £2.99 - Original price £4.69Original price£2.99 - £4.69£2.99 - £4.69Current price £2.99 -
Original price £17.29 - Original price £32.99Original price£17.29 - £32.99£17.29 - £32.99Current price £17.29250mm UPVC Internal window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 250mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lin...
View full detailsOriginal price £17.29 - Original price £32.99Original price£17.29 - £32.99£17.29 - £32.99Current price £17.29 -
Original price £13.99 - Original price £28.09Original price£13.99 - £28.09£13.99 - £28.09Current price £13.99200mm UPVC Internal Window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 200mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lin...
View full detailsOriginal price £13.99 - Original price £28.09Original price£13.99 - £28.09£13.99 - £28.09Current price £13.99 -
Original price £59.95 - Original price £147.95Original price£59.95 - £147.95£59.95 - £147.95Current price £59.953.7m Cill Cover Repair
Trade Superstore OnlineProduct description Cill Cover Repair Pack of 5 Length: 3.7m Depth: 175mm Recycled UPVC Easy installations Choice of colours Seriously low mai...
View full detailsOriginal price £59.95 - Original price £147.95Original price£59.95 - £147.95£59.95 - £147.95Current price £59.95 -
Original price £23.79 - Original price £23.79Original price£23.79£23.79 - £23.79Current price £23.79300mm White UPVC Internal Window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 300mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lines...
View full detailsOriginal price £23.79 - Original price £23.79Original price£23.79£23.79 - £23.79Current price £23.79 -
Original price £12.59 - Original price £25.69Original price£12.59 - £25.69£12.59 - £25.69Current price £12.59175mm UPVC Internal Window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 175mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lin...
View full detailsOriginal price £12.59 - Original price £25.69Original price£12.59 - £25.69£12.59 - £25.69Current price £12.59 -
Original price £11.59 - Original price £24.39Original price£11.59 - £24.39£11.59 - £24.39Current price £11.59150mm UPVC Internal Window Cill
Trade Superstore OnlineProduct description Internal Window Cill Size: 150mm Length: 5m Only Easy use Choice of sizes Variety of colours Colour-coded to match other lin...
View full detailsOriginal price £11.59 - Original price £24.39Original price£11.59 - £24.39£11.59 - £24.39Current price £11.59 -
Original price £44.00 - Original price £321.20Original price£44.00 - £321.20£44.00 - £321.20Current price £44.0023mm Laminated Window Board
Trade Superstore OnlineProduct description: Laminated Window Board Thickness: 23mm Quick, easy installations Various colours available Various sizes High quality finish ...
View full detailsOriginal price £44.00 - Original price £321.20Original price£44.00 - £321.20£44.00 - £321.20Current price £44.00 -
Original price £6.49 - Original price £6.71Original price£6.49 - £6.71£6.49 - £6.71Current price £6.49Long Laminated Window Board End Caps - Pair
Trade Superstore OnlineProduct description: Long Laminated Window Board End Caps - Pair Size: Length: 310mm Thickness: 10mm Width 27mm Quick, easy installations Hi...
View full detailsOriginal price £6.49 - Original price £6.71Original price£6.49 - £6.71£6.49 - £6.71Current price £6.49 -
Original price £98.60 - Original price £98.60Original price£98.60£98.60 - £98.60Current price £98.60600mm Window Board 3m
Trade Superstore OnlineProduct description Internal Window Board Depth: 600mm Length: 3m Trade Superstore Online are proud to offer you our designer range of Internal...
View full detailsOriginal price £98.60 - Original price £98.60Original price£98.60£98.60 - £98.60Current price £98.60 -
Original price £1.32 - Original price £9.57Original price£1.32 - £9.57£1.32 - £9.57Current price £1.32Laminated Universal Trim
Trade Superstore OnlineProduct description: Laminated Universal Trim Size: 422mm x 27mm Quick, easy installations Various colours available High quality finish Long life...
View full detailsOriginal price £1.32 - Original price £9.57Original price£1.32 - £9.57£1.32 - £9.57Current price £1.32 -
Original price £2.65 - Original price £2.65Original price£2.65£2.65 - £2.65Current price £2.65White Bullnose Window Board End Cap 40mm (300mm length)
Trade Superstore OnlineTransform your window board into a flawless work of art with our White Bullnose Window Board End Cap. This expertly crafted end cap is designed to ...
View full detailsOriginal price £2.65 - Original price £2.65Original price£2.65£2.65 - £2.65Current price £2.65 -
Original price £73.70 - Original price £84.70Original price£73.70£73.70 - £84.70Current price £73.70250mm Internal Window Board
Trade Superstore OnlineProduct description Internal Window Board Depth: 250mm Length: 4.1m Various colours Various sizes Trade Superstore Online are proud to offer ...
View full detailsOriginal price £73.70 - Original price £84.70Original price£73.70£73.70 - £84.70Current price £73.70 -
Original price £28.45 - Original price £77.40Original price£28.45 - £77.40£28.45 - £77.40Current price £28.45White Bullnose Window Board (5m length)
Trade Superstore OnlineElevate the aesthetics of your living space with Trade Superstore Online’s White Bullnose Window Sill. Crafted to perfection, this bullnose window ...
View full detailsOriginal price £28.45 - Original price £77.40Original price£28.45 - £77.40£28.45 - £77.40Current price £28.45 -
Original price £95.00 - Original price £95.00Original price£95.00£95.00 - £95.00Current price £95.00300mm Window Board 4.1m
Trade Superstore OnlineProduct description Internal Window Board Depth: 300mm Length: 4.1m Various colours Various sizes Trade Superstore Online are proud to offer y...
View full detailsOriginal price £95.00 - Original price £95.00Original price£95.00£95.00 - £95.00Current price £95.00 -
Original price £68.20 - Original price £84.70Original price£68.20 - £84.70£68.20 - £84.70Current price £68.20225mm Internal Window Board
Trade Superstore OnlineProduct description Internal Window Board Depth: 225mm Length: 4.1m Trade Superstore Online are proud to offer you our designer range of Inter...
View full detailsOriginal price £68.20 - Original price £84.70Original price£68.20 - £84.70£68.20 - £84.70Current price £68.20 -
Original price £44.00 - Original price £44.00Original price£44.00£44.00 - £44.00Current price £44.00White 150mm Laminated Window Board
Trade Superstore OnlineProduct description: White Laminated Window Board Size: 23mm Length: 5m Quick, easy installations Various colours available Various sizes High qu...
View full detailsOriginal price £44.00 - Original price £44.00Original price£44.00£44.00 - £44.00Current price £44.00 -
Original price £50.60 - Original price £50.60Original price£50.60£50.60 - £50.60Current price £50.60White 180mm Laminated Window Board
Trade Superstore OnlineProduct description: White Laminated Window Board Size - 23mm Length: 5m Quick, easy installations Various colours available Various sizes High qu...
View full detailsOriginal price £50.60 - Original price £50.60Original price£50.60£50.60 - £50.60Current price £50.60 -
Original price £45.10 - Original price £64.90Original price£45.10 - £64.90£45.10 - £64.90Current price £45.10200mm Internal Window Board
Trade Superstore OnlineProduct description Internal Window Board Depth: 180mm Length: 4.1m Trade Superstore Online are proud to offer you our designer range of Inter...
View full detailsOriginal price £45.10 - Original price £64.90Original price£45.10 - £64.90£45.10 - £64.90Current price £45.10 -
Original price £50.60 - Original price £50.60Original price£50.60£50.60 - £50.60Current price £50.60Light Oak 180mm Laminated Window Board
Trade Superstore OnlineProduct description: Light Oak Laminated Window Board Size - 23mm Length: 5m Quick, easy installations Various colours available Various sizes Hig...
View full detailsOriginal price £50.60 - Original price £50.60Original price£50.60£50.60 - £50.60Current price £50.60 -
Original price £44.00 - Original price £44.00Original price£44.00£44.00 - £44.00Current price £44.00Light Oak 150mm Laminated Window Board
Trade Superstore OnlineProduct description: Light Oak Laminated Window Board Size 23mm Length: 5m Quick, easy installations Various colours available Various sizes High ...
View full detailsOriginal price £44.00 - Original price £44.00Original price£44.00£44.00 - £44.00Current price £44.00 -
Original price £210.00 - Original price £210.00Original price£210.00£210.00 - £210.00Current price £210.00900mm Internal Window Board (4.1m)
Trade Superstore OnlineProduct description Internal Window Board Depth: 900mm Length: 4.1m Trade Superstore Online are proud to offer you our designer range of Inter...
View full detailsOriginal price £210.00 - Original price £210.00Original price£210.00£210.00 - £210.00Current price £210.00
Interior inspiration
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About our internal window boards
Welcome to our extensive collection of high-quality internal window boards and cills! Whether you're looking for standard UPVC window cills or laminated window boards, we have a wide range of options to suit your needs. Our selection features a variety of colours, including white, cream, rosewood, golden oak, light oak, and anthracite grey, allowing you to find the perfect match for your interior design.
Our internal window boards are crafted with precision and durability in mind. Made from premium materials, they offer excellent resistance to moisture, warping, and wear, ensuring long-lasting performance. The standard UPVC window cills provide a sleek and modern look while offering easy maintenance and exceptional strength. These are beautifully finished round-edged boards that will give any room a contemporary feel. And to finish off we have the perfect end caps too, in matching colours.
For those seeking a more decorative touch, our laminated MDF window boards are an ideal choice. With their laminated surface, they boast an attractive appearance that replicates the natural grain and texture of wood. These boards are not only aesthetically pleasing but also resistant to scratching, chipping, and fading, providing a beautiful and functional addition to your windows.
At Trade Superstore Online, we understand the importance of finding the right window boards and cills that blend seamlessly with your interior style. That's why our collection encompasses a wide range of colours, allowing you to create a cohesive look that enhances the overall aesthetics of your space. Whether you prefer a classic white or cream tone, a warm and inviting rosewood or golden oak, a contemporary light oak, or a stylish anthracite grey, we have the perfect options for you.
Browse through our comprehensive selection of internal window boards and cills today and elevate your home with the perfect finishing touch. With our top-notch quality, diverse color choices, and commitment to customer satisfaction, we are confident that you'll find the ideal window boards to meet your requirements.