25mm Chamfer Window Sill

Availability: In stock

Your Chamfer Window Sills will be dispatched between and (+1 day if choosing our waxed finish option) with free next day delivery.

*NEW* 'Priority' option now available during checkout for faster dispatch.

Chamfer-edged solid oak window sills, expertly machined in our UK workshop by our experienced joiners, in your choice of length and width.

  • All sills come machined and sanded, ready to finish
  • Length increments in 0.3m to save on costly timber waste
  • Kiln dried and seasoned oak, for durability and longevity
  • If your sills need trimming to width and length, we can do that for you
including VAT & free delivery
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Technical Specs

Read all about the specifications of our chamfer edge window boards, including available sizes, finishes and optional extras.

Window Board

0.6-2.4 metres (2-8 feet)
200-300mm, wider on request
Solid Oak
Unfinished, sanded

Optional Extras

Cut to Size
Our solid oak window sills can be trimmed to size at no added cost
Wax Finish
Choose from our range of wax finishes and we'll provide your window board ready to fit
Profile Returns
Choose 'profile returns' and we’ll profile both ends of your window board

Oak Species

American White Oak (Quercus Alba)

Key Features

We pride ourselves on machining and supplying some of the best oak window sills that money can buy. Here are a few of the features that make your buying decision a whole lot easier.

All the hard work done

We make sure that every oak window board that we send out is machined perfectly and sanded, ready to fit as soon as it arrives.

No excessive waste

We hate to waste beautiful natural Oak, and we wouldn't want you paying for it either. Our oak window boards are available in 300mm increments.

Very best solid oak

Every oak window board we produce uses only the best solid Oak, with fantastic grain detail and colour, along with durability that will last.

We'll trim to size

We understand that you might want your Oak window board made to the exact size they need, rather than trimming yourself. We'll trim at no cost.


We understand you might have a few questions you'd like answering before ordering. Here we list a few of the most common one's, though you're welcome to contact us should you have something else to ask.

Can my window sills be cut to size?

Yes they can. Choose the next size up to the dimensions you need and then enter the sizes you’d like the window sills trimmed to in the appropriate section of the ordering options box.

How much will it cost to get my sills delivered?

We like to keep things simple which is why all of our products are provided with free delivery. The price you see when selecting the options on most of our items is the exact price you pay.

Can I choose to have my window sills sanded?

No need; all of our window sills are sanded after machining to ensure a perfect finish.

Customer Reviews

All of our reviews are by 100% verified customers.

Based on 2 reviews Write a review

Customer Reviews

Based on 21 reviews
Paul Dallard
Perfect for the intended job.

Arrived well packaged - no damage, I have used this to replace the windowsill in our bathroom. It has been treated to 6 coats of Ronseal diamond hard clear Matt varnish and looks really good as it has stayed a nice light colour complimenting the other white oak effect bathroom fitments.
Will definitely use again.

Thanks for taking the time to leave a review Paul, and thank you for the photo as well. It's great to see our window boards in situ and glad that you're happy with your order.

Pre-finished Oak Window Board

Item arrived in perfect condition due to great packaging. The board itself was excellent, very clean piece, nicely finished. Would buy again without hesitation.

Thank you for the review Stephen. I'm pleased that you're happy with the oak window board and overall service. Hopefully see you return sometime in the near future.

James Fuller (London)
Brilliant Quality

Bought two as shelves - will definitely be back for more when we replace the window sills as these are great quality. Would highly recommend!

Thanks for the excellent review James. The shelves look great and it's always interesting to see actual photos of our items in use, so thank you for taking the time to send us a snap. Let me know if you ever need anything else as I would be more than happy providing your replacement window boards when needed.

Sean O'Pray
Window Sill

A very nice piece of oak and once fitted, finished off the room and compliments the picture window it serves

Thank you Sean, it looks excellent now fitted. Thanks for taking the time to provide a photo along with your review, it’s much appreciated.

Warren Lee (Birkenhead)
Chamfered cill board

Ordered and delivered within timescale specified especially in these times of the pandemic, cannot fault the service provided especially as I ordered the same product from another company and had nothing delivered after 3 months, definitely would use and recommend essential woodworking for future orders.

Thank you Warren. 3 months wait doesn’t exactly sound like the best service! I’m glad that you came to us and that we could supply what you were after for when you needed it. Don’t hesitate to get in touch if you ever need anything else.

Trevor Good (Berkhamsted)
Window boards

Excellent service, plus free delivery!
Very impressed with the finish - especially the figuring.

Great to hear Trevor. We do try and select only the best pieces to supply so I’m glad that you’re pleased with the sill :)

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