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 71 reviews
B Ford (Nottingham)
Good service, good product

Thank you, my window board arrived on promised date, well packed. All installed and looks great.

Looks great! Thanks for the photos and the kind review. You know where we are should you require anything else.

Anonymous, London (Fulham)
High quality oak window board

I ordered an oak window board. It was a straight forward process. As I ordered just before X-mas, it took a couple of weeks for it to be delivered (but it was clearly communicated). It arrived very well packaged and in perfect condition. I am very pleased with the purchase and would recommend Essential Woodwork.

Thanks for the kind review! I'm glad that you're happy with the window board. Bit tricky trying to navigate the Christmas season with delivery of orders but hopefully any slight wait didn't hold you up at all.



IAN BREMINER (Greenwich)
Excellent quality and service

We ordered a "20mm Bullnose Window Sill" from Essential Woodwork having found them on the internet. We had been looking in the usual places to find something suitable without success, and thought we would try them. We could not be more impressed. Easy to order, lots of choice of shades and colour, very quick delivery and it is beautiful and fits perfectly. If we ever need another sill we won't hesitate to go straight to Essential Woodwork. Thank you and well done.

Thank you very much Ian! I'm glad we could help. Your window board looks great now fitted and it's great to know that you could find what you were after easily through our website. If you ever need anything else you know where we are.

Oak Windowsill

An easy website to navigate, and found exactly what we were looking for. Instructions for custom fit produced exactly what we were looking for. Customer service was just like the old days by phone and email.
Thank you.

Thank you very much for the kind review. I'm glad we could help with your window board order and that you're happy with the service and product. We are actually having a big website revamp soon, but it's great to know our 'old' site is still up to scratch! You know where we are should you ever need anything else.

Paul Cable (Whitley Bay)
A great find

A Good Quality product, Efficient Service and Happy to use again.
The packaging certainly protected the new solid oak sill board during transport. We found Essential Woodwork on the web and they can provide odd sizes not available at your usual timber merchants. All fitted now at our home and looks great!

Thank you Paul, I'm glad we could meet your requirements. Our new website that we're currently working on will have even more customisation options, so you know where we are should you ever need anything else.

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