Solid Oak Fireplace Beam – Handcrafted Oak Mantelpiece (UK)
Solid Oak Fireplace Beam | Handcrafted Oak Mantelpiece UK | Celtic Timber
A beautifully handcrafted solid oak fireplace beam, planed and sanded to a smooth, refined finish while preserving the natural character of real oak.
Each beam is air-dried and individually prepared in our Pembrokeshire workshop, creating a timeless focal point for living rooms, kitchens and fireplace surrounds across the UK.
Whether you're installing a floating oak mantel shelf above a log burner or a substantial oak mantelpiece above an open fire, this is genuine solid oak — built to last and made to be noticed.
Why Choose Celtic Timber Oak Beams?
✔ Solid air-dried oak
✔ Handcrafted in the UK
✔ Brackets included
✔ Protective oil included
✔ PEFC certified sustainable timber
✔ Approx. 1 week lead time
✔ 500+ verified customer reviews
Our oak beams are suitable for:
- Fireplace mantelpieces
- Log burner surrounds
- Oak beam kitchen lintels
- Floating mantel shelves
- Decorative fireplace surround beams
Made to Order – Crafted for Your Space
All beams are made to order in your selected cross-section and length.
If you require a bespoke size, simply order the nearest size above your requirement and leave your exact finished dimensions in the Order Notes section at checkout. We will plane your beam to suit.
Cross-section sizes listed are starting dimensions.
Because this version is planed and sanded, the final size will reduce by up to approximately ¾" during finishing.
Example:
6″ × 6″ → finishes at approx. 5.25″ × 5.25″
8″ × 6″ → finishes at approx. 7.25″ × 5.25″
Length remains as selected.
Solid Oak Fireplace Beam | Handcrafted Oak Mantelpiece UK | Celtic Timber
A beautifully handcrafted solid oak fireplace beam, planed and sanded to a smooth, refined finish while preserving the natural character of real oak.
Each beam is air-dried and individually prepared in our Pembrokeshire workshop, creating a timeless focal point for living rooms, kitchens and fireplace surrounds across the UK.
Whether you're installing a floating oak mantel shelf above a log burner or a substantial oak mantelpiece above an open fire, this is genuine solid oak — built to last and made to be noticed.
Why Choose Celtic Timber Oak Beams?
✔ Solid air-dried oak
✔ Handcrafted in the UK
✔ Brackets included
✔ Protective oil included
✔ PEFC certified sustainable timber
✔ Approx. 1 week lead time
✔ 500+ verified customer reviews
Our oak beams are suitable for:
- Fireplace mantelpieces
- Log burner surrounds
- Oak beam kitchen lintels
- Floating mantel shelves
- Decorative fireplace surround beams
Made to Order – Crafted for Your Space
All beams are made to order in your selected cross-section and length.
If you require a bespoke size, simply order the nearest size above your requirement and leave your exact finished dimensions in the Order Notes section at checkout. We will plane your beam to suit.
Cross-section sizes listed are starting dimensions.
Because this version is planed and sanded, the final size will reduce by up to approximately ¾" during finishing.
Example:
6″ × 6″ → finishes at approx. 5.25″ × 5.25″
8″ × 6″ → finishes at approx. 7.25″ × 5.25″
Length remains as selected.
Your oak fireplace beam is supplied with the sufficient number and type of brackets for your chosen beam, this is included in the price.
Available bracket types:
- Straight brackets (easiest to install)
- T-Shape brackets
- Keyhole brackets
If you have a preference, please leave a note at checkout.
If no preference is stated:
- Straight brackets will be supplied as standard
- For beams with only 2" projection, keyhole brackets will be supplied
We do not pre-drill beams, as fixing positions must align precisely with your wall structure.
Customers should ensure compliance with relevant fire-safety and building regulations before installation.
Your oak fireplace beam is supplied with the sufficient number and type of brackets for your chosen beam, this is included in the price.
Available bracket types:
- Straight brackets (easiest to install)
- T-Shape brackets
- Keyhole brackets
If you have a preference, please leave a note at checkout.
If no preference is stated:
- Straight brackets will be supplied as standard
- For beams with only 2" projection, keyhole brackets will be supplied
We do not pre-drill beams, as fixing positions must align precisely with your wall structure.
Customers should ensure compliance with relevant fire-safety and building regulations before installation.
Current lead time: Approx. 1 week
We ship nationwide The delivery cost is calculated at checkout.
Smaller beams ship via courier.
Larger beams ship palletised via haulier.
For pallet deliveries, sufficient help must be available to unload by hand. If this is not possible, please contact us prior to ordering.
Delivery days are Weekdays only.
Impotant - Remove all packaging immediately upon delivery to allow the timber to breathe and acclimatise even if its not being fitted straightaway.
Current lead time: Approx. 1 week
We ship nationwide The delivery cost is calculated at checkout.
Smaller beams ship via courier.
Larger beams ship palletised via haulier.
For pallet deliveries, sufficient help must be available to unload by hand. If this is not possible, please contact us prior to ordering.
Delivery days are Weekdays only.
Impotant - Remove all packaging immediately upon delivery to allow the timber to breathe and acclimatise even if its not being fitted straightaway.
Oak is a natural product and each beam will vary slightly in:
- Colour
- Grain pattern
- Knots
- Surface cracks
- Character markings
Our character grade beams may contain natural splits and checks which can continue to develop as the timber acclimatises.
Although air-dried, oak may continue to shrink slightly as it adjusts to your property's temperature and humidity.
If installing above a fire or log burner, we recommend gradually increasing heat exposure over the first week.
These characteristics are not faults — they are part of the beauty of real solid oak.
Oak is a natural product and each beam will vary slightly in:
- Colour
- Grain pattern
- Knots
- Surface cracks
- Character markings
Our character grade beams may contain natural splits and checks which can continue to develop as the timber acclimatises.
Although air-dried, oak may continue to shrink slightly as it adjusts to your property's temperature and humidity.
If installing above a fire or log burner, we recommend gradually increasing heat exposure over the first week.
These characteristics are not faults — they are part of the beauty of real solid oak.
Your beam includes a pot of your chosen protective oil.
Oil enhances the grain while protecting the timber.
Please refer to the image gallery for finish examples, noting that each piece of oak will vary naturally in tone and grain.
If you are unsure which beam style (Contemporary, Lightly Worked or Heavily Worked) best suits your home, we recommend watching our guidance video:
https://www.youtube.com/watch?v=PeRczKSS2q0
Looking for a different surface finish?
We also offer Sawn Only and Planed Only options.
Your beam includes a pot of your chosen protective oil.
Oil enhances the grain while protecting the timber.
Please refer to the image gallery for finish examples, noting that each piece of oak will vary naturally in tone and grain.
If you are unsure which beam style (Contemporary, Lightly Worked or Heavily Worked) best suits your home, we recommend watching our guidance video:
https://www.youtube.com/watch?v=PeRczKSS2q0
Looking for a different surface finish?
We also offer Sawn Only and Planed Only options.
At Celtic Timber, sustainability is at the heart of everything we do. We source our timber from sustainably sourced 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 sustainably sourced 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 straightforward 30-day returns policy on all non-bespoke items.
If your order arrives damaged or incorrect, please contact us as soon as possible and we will arrange a replacement or agree an appropriate resolution.
To qualify for a refund or replacement, you must notify us within 30 days of receipt. Items must be returned unused and in their original packaging.
Return shipping costs are the responsibility of the customer, except where the item is damaged or supplied in error.
We offer a straightforward 30-day returns policy on all non-bespoke items.
If your order arrives damaged or incorrect, please contact us as soon as possible and we will arrange a replacement or agree an appropriate resolution.
To qualify for a refund or replacement, you must notify us within 30 days of receipt. Items must be returned unused and in their original packaging.
Return shipping costs are the responsibility of the customer, except where the item is damaged or supplied in error.
Handcrafted Solid Oak Fireplace Beams
Each of our oak fireplace beams is crafted from carefully selected solid European oak, chosen for its beautiful natural grain, strength and character.
For over 20 years, Celtic Timber has been one of the original suppliers of solid oak fireplace beams in the UK, providing handcrafted mantelpieces to thousands of homes across the country. Our experience working with oak allows us to create beams that combine traditional craftsmanship with a clean, refined finish.
Every beam is individually machined, sanded and finished in our Pembrokeshire workshop, ensuring a high-quality mantelpiece that becomes the natural focal point of your fireplace. Trusted by customers throughout the UK, our oak beams are designed to complement both contemporary interiors and traditional homes.
Looking for something bespoke?
Bring your ideas to life - Head over to our bespoke order page