Carpenter Oak Ltd

Engaging a timber frame specialist early in the design process provides architects, engineers, and contractors with crucial insights that streamline decision-making and improve project outcomes. We will assess your project’s geometry, constraints, and performance requirements from the outset, ensuring timber is integrated efficiently and effectively.

Key benefits of early engagement include:

• Early Timber Frame Design Support: Quickly determine whether a timber structure suits your project and align it with planning, regulatory, and performance targets.
• Reduced Risk and Improved Coordination: Identify potential clashes, structural challenges, or fabrication issues before they become costly problems.
• Better Budget and Programme Certainty: Receive guidance on timber availability, lead times, and costs to support accurate tendering and procurement.
• Value to Your Client: Deliver stronger proposals, smoother builds, and more reliable outcomes, enhancing client confidence and satisfaction.

By incorporating timber expertise at the concept stage, professional teams gain a clear, buildable strategy, reduce risk, and improve both design quality and project efficiency.

End-to-End Timber Frame Engineering

With nearly 40 years’ experience in timber frame design and engineering, Carpenter Oak works seamlessly with your architectural and engineering teams to deliver precise, buildable designs. Our approach ensures every timber frame aligns perfectly with your client’s vision, your project brief, and regulatory requirements. From green oak structures to engineered timber and glulam frames, we provide expert guidance at every stage - from initial concept to fabrication-ready documentation.

• Collaborative workshops to align timber strategies with architectural and structural design
• Assessment of timber suitability for spans, loads, and project constraints
• Detailed advice on integration with other materials such as steel, masonry, and glazing
• Early-stage feasibility checks to optimise frame geometry and structural performance

Every Carpenter Oak frame begins in our workshops, where traditional craft and careful attention to detail meet modern precision. For almost 40 years, we’ve been shaping timber into homes that feel warm, grounded, and full of character. Our fabrication process is where your vision becomes something real - carved, cut, shaped, and refined by skilled hands.

Keeping fabrication entirely in-house allows us to maintain accuracy and consistency at a level that external suppliers simply can’t match. From the first cut to the final quality check, every component is crafted and verified under one roof. This approach reduces risk dramatically, particularly on projects where tolerances, sequencing or interfaces with glazing and steelwork are critical.

All workshop activity is closely aligned with our design and engineering teams, allowing rapid communication and immediate problem-solving if a detail needs adjusting. This avoids delays and prevents costly rework further down the line. With no outsourced production, the supply chain is shorter, more resilient and easier to control - giving contractors and consultants complete confidence in the process.

We install more than 80 frames each year across the UK — and sometimes further afield. Thanks to our specialist knowledge in lifting, logistics, and construction planning, we’ve successfully raised frames in challenging and extraordinary settings, from Scottish loch shores to London rooftops and steep Dartmoor landscapes.

Professional Timber Frame Installation

Whether you're delivering a complex architectural build or embarking on a self-build project, our skilled team guarantees a safe, accurate, and well-managed installation that stands the test of time.

Get in touch to find out how we can help deliver a seamless and expertly coordinated frame installation for your project.

At Carpenter Oak, collaboration is at the heart of our ethos. We believe in sharing knowledge across the profession, fostering strong relationships, and working in unison to deliver ambitious, high-quality timber frame projects. This philosophy underpins our commitment to supporting the architectural community through our CPD programmes.

As the UK’s leading experts in timber frame construction and timber engineering, we deliver CPD sessions that offer an authoritative overview of timber framing, combining deep technical knowledge with the practical insight gained from decades of experience across both contemporary and historic projects.

Our programme explores key core topics while aligning closely with the RIBA curriculum. Each session equips architects with practical guidance, strategic insights, and design inspiration for specifying and integrating timber structures across a wide variety of projects. By sharing our expertise in working with both green and engineered timbers, we support professionals in deepening their knowledge of sustainable, high-performance timber construction.

Choosing the Right Timber

We offer guidance on timber selection and specification — from service class and availability to cost — ensuring the final finish supports your design vision.

With deep knowledge of the timber supply chain and long-standing partnerships with reputable European sawmills, we guarantee responsible sourcing and FSC-certified materials.

Expert Support in Timber Specification

Maximise the quality and performance of your project by working with our specialists, who can help you select the ideal oak or engineered timber solution for durability, appearance, and structural needs. Contact us to find out more.

What does “home” look like to you?

Perhaps it’s a cosy farmhouse kitchen warmed by a log burner, with a door leading into a garden and wide countryside views.

Or maybe it’s a contemporary, light-filled urban space with clean Scandinavian design.

It could even be a combination — classic charm paired with spacious, modern open-plan living.

At Carpenter Oak, we create homes that are shaped by the individuality of our clients and the character of the landscape around them.

Our visible timber frames introduce natural warmth and enduring craftsmanship to any design. With thoughtful planning and material selection, we can craft a home in virtually any architectural style.

Create a Standout Space in Your Home

You might already love your home — it just needs that extra room or a truly memorable feature.

Perhaps you’re dreaming of a bright, characterful kitchen-dining space that becomes the heart of family life.

Maybe you’re replacing an outdated extension or conservatory with something beautifully crafted and built to last.

Or you may be planning a larger addition that significantly increases both space and property value.

At Carpenter Oak, every extension is an exciting opportunity — from compact garden rooms to bold, expansive additions.

Timber framing works especially well for single-storey extensions, where exposed trusses and vaulted ceilings add height, light, and visual drama. We frequently design single-storey wings for new homes too, bringing the warmth of an oak roof structure into everyday living spaces.

Planning an extension?

Our team delivers oak, Douglas fir and glulam frame extensions that offer striking design, robust structure and excellent energy performance.

Get in touch to discuss your ideas and begin shaping your future space.

Adding Space Without Extending Your Home

There are many ways to increase your living space without building a traditional extension.

In some cases, an extension works well, but a detached annexe or outbuilding can offer a practical alternative — providing substantial new space while remaining private and separate from your main home.

Every client’s needs are unique, and one solution doesn’t fit all.

At Carpenter Oak, we design and construct a wide range of annexes and outbuildings, tailored in scale, style, and function to suit each project.

Our buildings are usually created from prefabricated components assembled onsite, rather than fully factory-built cabins. This approach allows us to deliver larger, robust structures that match the quality and solidity of your home.

Sunrooms, Orangeries, & Conservatories

Our oak-framed garden rooms fill your home with natural light and offer stunning views, creating a seamless connection between indoor living and the outdoors. Designed for year-round comfort, they stay warm in winter and cool in summer, all within a beautifully crafted oak structure.

Glazing Systems

Timber-framed buildings are naturally energy-efficient and comfortable, and carefully considered glazing can enhance natural light while framing spectacular views. With 35 years of experience, we seamlessly integrate glazing into timber structures, providing precision joinery for all fittings and fixtures.

Glazing timber presents unique challenges because green oak naturally moves, shrinks, twists, and splits over time. Our skilled carpenters ensure beautiful, durable results despite these changes.

Standard oak window frames are available with double or triple glazing, while bespoke options for windows, doors, and panels can be tailored to suit your design and budget. We also offer solutions to manage solar gain and reduce glare.

Clients often praise our “frameless” style windows, which maximise views and bring the outdoors inside. Glazing can be full-height, sit on dwarf walls, or follow gables, creating light-filled, airy interiors that showcase the surroundings.

Modern oak-framed homes are often more efficient and comfortable than older houses, frequently exceeding current building regulations.

Specialist Glazing, Seamlessly Integrated

Bespoke glazing solutions, designed to work in harmony with complex timber frames, are a key part of any timber-framed project.

Contact us to discuss your plans, so we can provide guidance on requirements and costs.

Roof Boarding for Timber Frames

Our roof boarding service is specifically designed to complement our timber framing solutions, providing essential weatherproof protection that enhances the durability and efficiency of your build. By installing high-quality roof boarding, we create an immediate protective cover, allowing the drying process to begin as soon as the oak frame is erected. This enables the next phase of construction to proceed without delays, regardless of weather conditions.

Our precision-cut roof boarding is installed tightly against the timber frame, leaving only a minimal gap to ensure a seamless, integrated appearance. This not only enhances the aesthetic appeal but also maintains the structural integrity of the green oak frame, ensuring long-term stability and weather resistance.

Our expert team ensures a high-quality installation, tailored to your project’s specifications, using premium sustainably sourced timber. Whether you are constructing a traditional oak-framed building or a modern timber structure, our roof boarding solutions provide the ideal foundation for a durable and efficient build.

Contact us to discuss our boarding service in more detail.

Wrapping Your Timber Frame

Encapsulation systems, often described as a ‘wrap’ for the structural skeleton of our large-section timber frames, play a crucial role in the long-term energy performance of a building.

Once the wrap is installed and windows and doors are fitted, it creates a weathertight, secure shell, protecting the interior from weather and allowing materials to be safely stored inside. This shell also enables the majority of interior work to proceed, often alongside external cladding, helping to speed up the build process and reduce pressure on completing the external walls and roof.

Achieving a wind- and watertight structure is also important for financing a self-build. Many mortgage lenders will release funds once this stage is reached. Key self-build milestones typically include:

• Land acquisition (with at least outline planning permission)

• Substructure completion

• Wallplate/eaves height (just before roof trusses are added)

• Wind- and watertight roof with tiles

• First fix

• Second fix

• Certified completion

While Carpenter Oak does not manufacture encapsulation systems, we partner with carefully selected suppliers to provide a range of options for wrapping your frame. Each system has its advantages, and we can help you choose the one that best suits your project.

With extensive experience integrating panels and timber frame design, we ensure a cohesive, energy-efficient build. We focus on low-energy homes, aiming for many of our new builds to be net energy exporters.

With nearly 40 years of expertise, we can support projects of all sizes and complexities, including helping self-builders reach Stage 4 of a self-build mortgage when required.

Contact us to learn more about our frame-wrapping service and explore the options available for your project.

Sustainable and durable, the natural beauty of timber gives any newly built space impressive character. We work with a variety of materials and specify suitability for your project. We also embrace the use of steel connections where appropriate.Taking a bespoke approach to all projects enables us to work in a variety of styles, with the most challenging designs. We work with a project’s design team to identify the right materials in terms of aesthetic and finish to make the most of your build and budget.

A complex frame for a boathouse on the shoreline of a river, using Douglas fir and larch sourced from the bordering forest.

A stunning oak frame barn creates a special wedding venue.

A barn reborn in the Cotswolds.

A Refined Glulam Structure.

Crafting Excellence in Education Spaces.

A contemporary addition to a listed manor creates a harmonious kitchen and living space that blends into its environment.

A Timeless Oak Framed Extension.