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Structural Green & Air-Dried Oak

Oak Framing & Structural Landscaping Products

Key Features

  • Superior Strength & Load-Bearing Capacity – Naturally dense and durable, perfect for beams, frames, trusses, and other structural elements.
  • Workability & Ease of Shaping – Green oak beams are easier to cut, carve, and joint due to its higher moisture content, making it ideal for precision craftsmanship.
  • Aesthetics - As it seasons, oak develops beautiful splits, cracks and a silver-grey patina, adding to its rustic charm without compromising strength.
  • Low Maintenance - High tannin content helps natural resistance to fungal decay and many wood-boring insects, increasing longevity.
  • Sustainably Sourced & Eco-Friendly – All our structural oak beams and posts are responsibly harvested from managed forests, ensuring a minimal environmental impact and long-term sustainability.
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Structural Beams, boards, rafters & trusses

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Seasoned Structural Beams & Posts

Square, rounded & weathered tops

Green Oak

Suitable for structural applications, including oak-framed buildings, porches, pergolas and other architectural features. Its high moisture content allows it to be worked more easily when freshly cut, making it ideal for traditional timber framing.

Air-Dried Oak

Ideal for heritage & conservation projects requiring interior air dried oak beams, posts or decorative elements. Commonly used where pre-seasoned stability is vital or for retrofitting existing structures.

Gate & Fence Posts

Shaped green oak posts suitable for hanging gates and ornamental structures. Pre-formed bollards provide elegant solutions to create safe zones.

Bracing & Framing Accessories

Handcrafted in various lengths

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Mortise and tenon jointing
 

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Rounded pegs sold in lengths

Curved Tie Beams

Handcrafted curved beams ideal for entrance porches, pergolas and garden rooms. These beams provide both structural support and an elegant architectural feature, softening rooflines and openings. Available in varying sizes.

Curved Wind Braces

Our pre-cut fresh sawn oak braces are expertly crafted to enhance both the structural stability and aesthetic appeal of your project. Perfect for oak-framed buildings and architectural structures alike.

Oak Dowelling Pegs

Made from sustainably sourced oak, these pegs are an essential framing accessory for traditional mortise and tenon jointing, providing strength, durability and timeless craftsmanship.

Why It’s Important to Choose Structural Grade Oak

When constructing load-bearing structures such as oak-framed buildings, porches, trusses, car garages, or summerhouses, selecting the correct structural grade oak is crucial for safety, durability, and long-term performance.

Structural-grade oak is specifically classified and tested to meet British Standards BS5756:2007+A2:2017, ensuring it can safely carry the required loads without excessive bending, splitting, or failure.

Unlike lower-grade or decorative oak, structural-grade timber is carefully inspected and tested for knots, splits, and grain irregularities, ensuring predictable performance across every component. This reduces the risk of structural failure and ensures longevity.

Understanding Visual Strength Grading

Visual strength grading is a method used to assess the structural strength and load-bearing capacity of a piece of timber by inspecting its visible characteristics, rather than judging its appearance for decorative purposes.

Although it shares some similarities with appearance grading, the primary aim of visual strength grading is structural performance. The strength of timber depends on its species and is influenced by how the tree grew during its lifetime.

Growth conditions affect characteristics such as:

  • Slope of grain
  • Knots (size, position, and frequency)
  • Wane (missing wood at edges or corners)
  • Fissures and checks (cracks along or across the grain)

Visual strength grading rules set out clear limits for the type, size, and quantity of these defects that are permitted within each strength grade. If a piece of timber meets the criteria for a given grade, it can be reliably used in structural applications such as beams, joists, oak framing or outdoor structures.

Strength Classification of Visual Grades (BS 5756) for Hardwoods

 
Visual Strength Grade Minimum Thickness Minimum Cross-Sectional Area Strength Class*
TH1 20 mm 2,000 mm 2 D30
TH2 20 mm 2,000 mm 2 D24
THA 100 mm 20,000 mm 2 D40
THB 100 mm 20,000 mm 2 D30

* PD 6693-1:2025 Recommendations for the design of timber structures to Eurocode 5: Design of timber structures. General - Common rules and rules for buildings. Strength Class for European Oak.

Explore our range of European solid oak joinery products

Available to purchase from our online shop today

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PAR Boards

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Prepared European Oak Planks

Air-dried Oak Mantels

Fireplace Beams

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Oak mantels & architectural accents

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Windowboards

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Bullnose & Rounded & Square Profiles

Solid oak window boards and linings in kitchen

Door Linings

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Solid oak Singles & Double Liners

H&H Forestry

Specialist oak hardwood timber merchants, supplying high-quality European and English Oak for construction use and interior joinery projects.

We provide fast custom order quotes, a sawn-to-size cutting service and bespoke oak frame kits on request, ensuring every project meets your exact specifications.

With a wide selection of available sizes on our website, customers can purchase structural oak building materials and interior oak products 24/7, all sourced from sustainably managed forests to ensure strength, durability, and the natural beauty of European and English oak.

Check out our range of feather & waney edge oak cladding , oak fire surrounds and smooth planed all round boards for your bespoke oak furniture and interior design installations.

If you need custom sizing or bespoke features, please contact us with your project requirements.

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