Oak Fireplace Beams - Highest Quality, Best Value Mantels (Planed Only)

• Highest quality, handcrafted, air dried oak beams supplied sawn only, allowing you to sand and finish the beam to your taste. This will then make it perfect for mantelpieces or lintels for living rooms, above your log burner or kitchens above your cooker
• Deliveries within Pembrokeshire: Free shipping! We are unable to provide a day or time as it will depend on order volume and when a driver is in your area but will deliver within 5 working days of the order being completed.
• Deliveries outside of Pembrokeshire: We ship nationwide using 3rd party companies, please continue to checkout and cost will be calculated after entering your postcode. For smaller, more manageable orders we will ship using a courier. Please allow up to a week for delivery upon completion. For larger orders we will ship a palletized delivery via haulier, in this case Multiple people would need to be on hand at time of delivery to handball off vehicle, if this is not possible, we will need to cancel the order. We will contact you prior to despatch to confirm this/discuss delivery timescale. 

Current lead time: Approx. 1 week

If you are looking for a finished Planed and Sanded oak beam,Click Here.

If you are looking for a natural, beautiful centrepiece to your home or living room then look no further, available in a massive range of sizes Celtic Timber is a market leader in the sale of oak beams!

Planed square but will have sharp edges, rough surfaces and may still contain marks from transport, weathering and machining. Perfect for trades people who have the equipment and experience to finish to their taste.

Important: Please note the following before purchasing:

• If you are looking for a custom size beam, please order the size above what you require and specify your chosen size in the 'Order Notes' section of the checkout. We will ensure that it is planed to your specific required dimensions.
• The cross-section sizes listed are starting sizes and will reduce by up to 3/4 of an inch after being planed so you may wish to order the next size up to allow for this. For example 6" x 6" starting size will reduce down to no more than approx. 5.25" x 5.25", 8" x 6" starting size will reduce down to no more than approx. 7.25" x 5.25" etc, the length will remain as selected. 
  
• Please refer to imperial sizes (inches and feet) for accurate lengths and cross-sections. Metric dimensions provide an approximate translation.
• Ensure that your beam is taken out of its wrapping immediately after receiving the delivery to allow it to breathe and adjust.
• We do not pre-drill beams as customers will need to ensure that fixings are secured to the wall are in the correct place.
• Customers should satisfy themselves, or check with their installer, that the beams or shelves comply with all relevant fire-safety and building regulations.

Oak is a natural product and therefore each individual piece will be different in appearance and will vary slightly in colour and grain. Our character grade beams may well already contain knots, surface cracks, pinholes and waney edges and cracks would be expected to develop further once they acclimatise to a new environment after purchase. Although our beams are air-dried, it also is not unusual for the oak to develop further shrinkage and movement as it continues to dry and adjust to your property's temperature. If your beam is going to go above a fire, log burner, fire or intense heat, we recommend that the heat should be gradually increased over a period of a week or more if possible. 

All of our oak is PEFC certified, meaning that it is sustainably sourced, and the forest management is environmentally appropriate, economically viable and socially beneficial management for present and future generations.

See our image gallery for a representation of how the different coloured oils will look on your oak beam, bearing in mind that the grain and colour of each piece of wood is different so this is a rough guide only.

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.

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.

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.

Learn more about how we ensure sustainability, here.