CookieThis website uses cookies to measure and improve performance (click here to read our privacy policy).
Thanks For Telling Me

Oak Beams and Oak Boards

UK Timber is one of the UK's leading stockists of high quality oak beams. We operate nationwide, offering both air dried and fresh sawn oak beams.

The 2 Types of Tree used for UK Timber Oak Beams

1. Green Oak Tree

  • A popular building material in England
  • Affords great strength and durability
  • High moisture content
  • Great resistance to decay
  • Requires no chemical treatments
  • Maintenance-free
  • Eco-friendly

2. Larch Tree

  • Durable
  • Moisture, sun and pest resistant
  • Anti-slip surface and fully reversible
  • Resistant to decay
  • Does not require treatments
  • Universally available
  • Affordable

Oak Beam Uses

  • Decorative purposes
  • Home structure
  • Roof structure
  • Construction of oak framed buildings
  • Bridges
  • Marine structures

Oak Beam Sizes

Our oak beams are available in the following standard sizes:

Structural Green Oak Beams

Air Dried Oak Beams

  • 150mm x 150mm
  • 200mm x 150mm
  • 200mm x 200mm
  • 250mm x 150mm
  • 250mm x 250mm
  • 100mm x 100mm
  • 150mm x 150mm
  • 200mm x 75mm
  • 200mm x 150mm
  • 250mm x 150mm
  • 200mm x 200mm
  • 250mm x 250mm

Douglas Fir / Larch Beams

  • LENGTH: 20-9000 mm
  • WIDTH: 20-350 mm
  • DEPTH: 20-350 mm

Our Custom Cutting Services

Our custom milling services can cut Green Oak Beams up to 12.5 metres long. All beams can be cut straight from the tree and in all dimensions. We also offer a planing service for an additional charge using our PAR beam calculator.

Custom Cut Beams

  • Structural Oak Beams (Air Dried)
  • Structural Oak Beams (Fresh Sawn)
  • Douglas Fir / Larch Beams
  • Structural Oak Beams THB/TH2 (Fresh Sawn)
  • Structural Oak Beams THA/TH1 (Fresh Sawn)
  • Landscaping Rustic Grade Oak

Custom Cut Beams P.A.R. (Planed All Round)

  • P.A.R Structural Oak Beams (Fresh Sawn)
  • P.A.R Structural Oak Beams (Air Dried)

Custom Cut Boards

  • Kiln Dried (First)
  • Kiln Dried (Character)
  • Air Dried (Joinery Grade)
  • Air Dried (Joinery First Grade)

Custom Cut P.A.R. (Planed All Round)

  • P.A.R K/D European Oak (First)
  • P.A.R K/D European Oak (Character)
  • P.A.R Air Dried Oak (Joinery Grade)
  • P.A.R Air Dried Oak (Joinery First Grade)

(IMPORTANT: When preparing oak beams for delivery, we always try to include a little extra length to be assured that the beam will fit the customer's requirements. If you would like us to crosscut the ends, please let us know when you place your order).

Oak Beam Finishes

Our oak beams are available in the following finishes:

  • Freshly cut beams
  • Cleaned
  • Cleaned and waxed
  • Cleaned, sanded and waxed

Oak Beam Grading Service

Our oak beams are cut according to the European QP1 standards and the THA or THB standards, as approved by TRADA. We aim to buy from FSC (Forest Stewardship Council) and PEFC (Programme for the Endorsement of Forest Certification) acclaimed sources only.

Different Grades of UK Timber Oak

Green Structural Oak

A fresh cut oak that has been clear-cut in the last 3 - 6 months, it is of high moisture content and is prone to shrinkage and movement during the drying process. Also known as falling boards, these oaks are used for all sorts of external and landscaping purposes.

Air Dried Structural Oak

This oak dries relatively more slowly compared with other types. Machine-sawn and straight, it can easily be cut into different precise dimensions. Sometimes displaying surface checking, splits, a little sap and a few historic bore holes, these flaws will doubtless add a little character to the finished project.

QP1 Grade Beams

These oak beams have a minimum of 3 straight edges with tolerance of a small amount of wane to one edge. They are better utilised in the construction industry and for property renovations.

Fresh Sawn Vs Air-Dried

UK Timber offers both air dried and fresh sawn oak beams.

Here is a comparison of these options:

Fresh Sawn



  • Adaptable for many various projects
  • Used where some movement and shrinkage is permitted
  • It dries slowly and adjusts naturally
  • Used for framing and restoration
  • Suitable for more sensitive situations
  • The beams are dried in square sections for 1-4 years
  • Appropriate for projects that require an aged aesthetic

UK Mainland Delivery
We have a large fleet of dedicated vehicles fitted with cranes for offloading.

Please add products to your shopping cart to obtain a delivery quotation based on your location and shopping cart contents.

Click here to view our shipping and returns policy.

Customer Support


"I had my order of timber delivered today. I just wanted to mention how helpful your driver was. He called and waited until I arrived, then followed quite a distance to the drop off, very pleased. We transfered the load to one of my trucks for ease, signed for everything, drove home."

Tony Payton