25mm Round Window Sill

Availability: In stock

Your Round 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.

Solid oak round-edged window boards, expertly crafted in our UK workshop and available in any length, width and choice of thicknesses. Full-round and half-round options available.

  • Your sill arrives sanded, ready to fit and finish
  • We can trim your sills to the length and width you need
  • High quality, seasoned oak for excellent longevity
  • Order lengths in increments of 0.3m to save on costly wood waste
including VAT & free delivery
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Technical Specs

Read all about the specifications of our round edge window boards, including available finishes, sizes 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 oak window boards can be trimmed to your exact dimensions free of charge
Profiled Returns
Select whether you would like the same profile on the left, right, or left and right edge 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.

We'll do the hard work

We go the extra mile to make sure that your oak window board is not only machined well, but sanded ready for you (or us) to wax, oil or varnish.

Trimming option

Don't want to trim the oak sill yourself? No problem, we offer a free 'trimming' option so that you can order the exact size sill you need.

Kiln dried solid oak

We only use the very best kiln dried solid Oak, which demonstrates beautiful grain detail, colour, and is made to last.

No costly waste

No need to order overly long or wide oak window boards. Our length options increase by 0.3m and width by 25mm so you can choose the most suitable size.


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.

Would you trim the sills for me?

Yes we can. Use the size options to select the next size up to the dimensions you need and then enter the sizes you’d like the window boards trimmed to in the 'Trimmed to size' section of the ordering form above.

I guess the sills are heavy, is delivery expensive?

Solid oak is quite heavy but we’ve made it easy to understand delivery costs by providing all of our products with free delivery. The price you see on the product page is the exact price you’ll pay, no hidden costs added during the checkout.

Are the window sills smooth?

Yes, not only do we machine your window sill precisely, we also sand them before delivery so that you receive a high quality sill that’s smooth and free of any blemishes.

Customer Reviews

All of our reviews are by 100% verified customers.

Based on 3 reviews Write a review

Customer Reviews

Based on 40 reviews
Alan Jones (Hereford)
Inside door step

Nice piece of timber, cut to my size so I only needed to do minimal finishing to make it fit, very well packaged for delivery kept informed of order progress, also options of finishing edge like bullnose or square edge looks really nice now I’ve put Danish oil on it.

Thank you Alan, I'm pleased that you like the oak board and were able to order exactly what you needed. Let me know should you ever need anything else.

JB (Islington)
Great Wiindowsill

Received 2 Oak Window Sills that were exactly as expected and arrived at the earlier end of the delivery timeframe - would definitely recommend.

Thank you very much, it's great to hear that you're pleased with your window boards. You know where we are should you require anything else in the future.

Jay T (Wood Green)
Very nice mantle piece!

Really nice piece of oak for over a fire place. Cut with care - taking note of the grain. Not finished installing yet - so no photo. Excellent service and prompt delivery! 😊

I'm glad you're pleased with the oak window board Jay. I hope it looks even better when you have it installed over your fireplace! Thanks for leaving us a review.

Simon (Camberley)
Excellent service, quality product!

Lovely oak window boards, delivered on time and safely packaged. Great comms, answering questions quickly - will defo use again

Thank you for the pictures of your window boards Simon, and for the review also. I really appreciate it. You know where we are should you need anything else.

Mike (Bradford)

The window sill that i got if good quality cut to the size i required and looks good. I also had a problem with the delivery company rang essential woodwork and they got in touch with the delivery company and was sorted out straight away thanks.

Thank you for the review Mike, I really appreciate it. Sorry for the slight courier issue - we don't often get them thankfully but glad we could get it sorted quickly. I'm pleased you like your window board. Let me know if you need anything else anytime.

Charlotte (Stanmore)
Excellent service

Really great customer service and good quality product. Thoroughly recommend!

Thank you Charlotte, it's good to hear that you are happy with the oak sill. You know where we are should you need anything else.

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