Solid Oak Window Sills - Custom Sizes
At Celtic Timber, sustainability is at the heart of everything we do. We source our timber from FSC and PEFC certified forests, ensuring responsible management and protection of natural resources.
We also actively contribute to reforestation and rewilding projects across the UK, planting over 12,000 trees on our own land. By choosing our products, you’re supporting a company dedicated to reducing environmental impact and preserving the planet for future generations.
At Celtic Timber, sustainability is at the heart of everything we do. We source our timber from FSC and PEFC certified forests, ensuring responsible management and protection of natural resources.
We also actively contribute to reforestation and rewilding projects across the UK, planting over 12,000 trees on our own land. By choosing our products, you’re supporting a company dedicated to reducing environmental impact and preserving the planet for future generations.
We offer a hassle-free 30-day returns policy for all non-bespoke items. If your product arrives damaged or incorrect, contact us immediately, and we'll arrange a replacement or discuss compensation.
To qualify for a refund or replacement, notify us within 30 days of receipt, and ensure the item is returned unused, in its original packaging.
Please note, return shipping costs are the customer's responsibility, except in cases of damage or error on our part.
We offer a hassle-free 30-day returns policy for all non-bespoke items. If your product arrives damaged or incorrect, contact us immediately, and we'll arrange a replacement or discuss compensation.
To qualify for a refund or replacement, notify us within 30 days of receipt, and ensure the item is returned unused, in its original packaging.
Please note, return shipping costs are the customer's responsibility, except in cases of damage or error on our part.
Free mainland delivery. Please message us if you live in a highland/island area for accurate pricing.
Current lead time – Allow up to 1-2 weeks.
For large orders there may be a longer lead time, please get in touch with us prior to ordering for a more accurate timescale.
- Bespoke Sized Solid oak window sills.
- Add style and character to any home or office.
- Kiln-dried/joinery grade oak boards. Planed and Sanded to a fine finish.
- Please Contact Us for widths over 600mm or any bespoke work.
Elegantly handcrafted solid oak window sills. Made from thick kiln-dried French oak and joined by our expert team.
We are able to cut bespoke oak window sills to the mm to fit any size alcove.
We join full-length solid oak boards to make the length of the window sill, this creates a more natural and beautiful finish.
Important - Please note the following before purchasing;
As our oak sills are a natural product, each piece may be different in appearance and vary slightly in colour.
If ordering widths over generally 150mm+ these will be made up of joined boards.
Make sure that the weight is properly supported and the boards are fixed correctly close to the delivery date to ensure that they do not bend or twist.
Looking for something bespoke?
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Customer Reviews
Good service, oak board was very well packaged and exacting in size. overall finish was very good a little light sanding a couple of coats of oil and its ready to be fitted. Thank you
I recently purchased two custom size windowsills for my new kitchen. They arrived within a week, cut exactly to size requested and the wood is beautiful. I have waxed them today and it really brought out the grain. They look stunning and have been the finishing touch to my kitchen. I am truly delighted with the product, the customer service and the speed of delivery. Thank you. Will be buying for the rest of the house very soon.
I ordered a bespoke length and width of solid oak cabinet top. The product arrived and the grain of the wood was beautiful, complimenting the cabinet.
I ordered a bullnose window board although not to use for a sindiw, but as a shelf above a toilet cistern. Product was delivered promptly, made to measure & looks good. The only difficulty I had was picking the woodstain to be similar/match to the under sink wood cabinet. I've yet to apply the woodstain, but am happy with the product so far
Nicely cut out of beautiful oak. Arrived in good condition.