20mm Bullnose Window Sill

Availability: In stock

Your Bullnose 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.

Expertly machined and hand finished 20mm bullnose window boards, made from high quality solid oak. Unbeatable quality, price and service on all oak window boards, with custom options too.

  • All oak window boards arrive sanded, ready to finish
  • Order lengths in 300mm increments to save on costly waste
  • Available to be trimmed to length and width needed
  • High quality solid kiln dried oak
including VAT & free delivery
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Technical Specs

Our bullnose window boards are ever-popular among our customers, and for good reason. Unrivalled in quality, value for money and optional extras.

Window Board

0.6-2.4 metres (2-8 feet)
200-300mm, custom orders welcome
Solid Oak
Unfinished, sanded

Optional Extras

Trimmed to Size
Provide us with your exact window board measurements and we'll machine and sand your sill to your exact size
Profile Returns
Choose the 'Profile returns' option and we'll machine the same profile to the left and/or right hand edges
Wax Finish
Choose one of our exceptional wax finishes and we'll deliver your window board 'finished' to your spec

Oak Species

American White Oak (Quercus Alba)

Key Features

Our bullnose window sills are machined with great attention to detail, and finished to an excellent standard. Here are just a few of the features that we offer.

All of the hard work done

All of our oak window boards arrive ready to install. Machined and sanded, and optionally waxed finished.

High quality solid oak

100% solid oak, no veneers! Hand picked American White Oak with natural beauty and durability.

Cut to size available

At no extra cost to you, we can trim your oak sill to size, so it arrives ready to fit and perfectly finished.

Reduce costly waste

To help save on costly oak waste, you can order your solid oak window board in increments of 0.3m (300mm).


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 you trim my sills to the size I need?

Yes, that's not a problem. Simply choose the next size up in our options and enter the dimensions you'd like your bullnose window board to finish in the 'Trimmed to size' box.

How much will delivery be?

All of our oak window boards include free delivery. The prices you see displayed on the product page are what you'll pay including VAT. No hidden costs during checkout.

Do I need to sand the window boards?

Every window board that we send out is machined and sanded, ready to fit when it arrives. We can even wax finish your oak sill for you too.

Customer Reviews

All of our reviews are by 100% verified customers.

Based on 8 reviews Write a review

Customer Reviews

Based on 60 reviews
colin southcombe (Bath)
Lovely window sill.

Seemed a lot of money for a plank! But it arrived on time, looked lovely, and after 2 coats of Danish oil, it looks beautiful!
Very happy!!!

Thank you for the review Colin. We actually price our window boards very competively considering the total includes delivery (which isn't cheap for a board as long as your piece of Oak) and VAT. You might be surprised how little profit there is in a board that size when taking in to account the cost of Oak itself, but I'm glad you're happy with it and you know where we are should you ever need anything else.

Thank you for submitting a photo of your window board, it looks fantastic in situ and appreciate you taking the time to do that for us.

Matthew Rulton (Chelmsford)
20mm Oak Bullnose Window Sill

Top quality oak, very quick delivery, value price, all supplied by a highly recommended establishment. I am very satisfied & will look to purchase more products from Essential Woodwork in the near future.

Thanks for the great feedback Matthew, I’m glad that you’re happy with your order :)

L. Oosterlee (Felixstowe)
Oak window sill

Great customer service, I was able to track the delivery, it was packaged well and it was exactly what I wanted. Thank you.

I’m glad we could help and that you’re happy with the oak sill! Let me know should you ever need anything else

Jonathan Whittle (Cheltenham)
Perfect windowsill

This is the second windowsill we have purchased and yet again the quality of product and service are brilliant. Will buy again when we do the next windows

Thank you Jonathan. I’m glad you’ve been happy enough with the window boards to return for more, and hope to see you again sometime soon.

Gordon Biggans (Swanley)

20mm Bullnose Window Sill

Thanks for the 5-star rating Gordon, and for taking the time to add a photo! The window board looks great. Love the ladder shelf too!

Jerry Haywood (Cranleigh)
Oak windowsill - super quality thanks

Super product thankyou

No problem Jerry, I'm glad you like it and thanks for the review.

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