Square edge cladding is a popular and versatile timber cladding profile known for its clean, contemporary appearance and straightforward installation. Whether you’re designing a rustic barn conversion, a modern extension, or a commercial project, square edge cladding offers a timeless, unfussy aesthetic with exceptional durability.
In this guide, we’ll explore what makes square edge cladding unique, how it’s used in building design, what timber species it’s commonly made from, and why it might be the perfect fit for your project.
What Is Square Edge Cladding?
Square edge cladding refers to timber boards that are cut with perfectly straight, planed edges and no overlapping rebates or grooves. Unlike shiplap or tongue and groove profiles, which are designed to interlock, square edge boards are simply butted up against each other, either side-by-side or with a slight gap, depending on the desired look.
This straightforward profile offers a minimal, flat-faced finish that can be installed horizontally, vertically, or even diagonally for added design interest. It’s particularly well-suited to contemporary builds but also works beautifully in traditional settings, especially when using characterful, locally sourced timber.
Why Choose Square Edge Timber Cladding?
1. Clean and Contemporary Aesthetic
The simplicity of square edge cladding is its greatest strength. The sharp, uniform lines create a sleek visual rhythm across the exterior of a building, making it ideal for minimalist architecture or modern countryside builds.
2. Versatile for Different Styles
Though it suits modern buildings, square edge timber can also complement traditional designs. Whether you’re after a clean Scandinavian look or a natural, weathered barn façade, square edge boards can be finished to suit your style.
3. Straightforward Installation
With no grooves, rebates, or overlaps, square-edge boards are simple to install. They can be face-fixed directly onto battens and spaced evenly, depending on your design requirements. This makes them a popular choice among both professional builders and capable DIYers.
4. Cost-Effective Profile
Because the boards don’t require intricate shaping, square edge cladding tends to be more affordable per linear metre than profiles like tongue and groove or rainscreen. It’s also easier and faster to install, helping reduce labour costs.
5. Flexibility in Spacing
Boards can be installed tightly for a flush finish or with a small gap between each board to allow for airflow or a visual effect. This flexibility means square edge timber is commonly used in both cladding and screening applications.
Common Uses for Square Edge Cladding
Square edge timber is widely used in residential, commercial, and agricultural buildings. Some of the most common applications include:
- Exterior Wall Cladding – Ideal for houses, garden offices, extensions, and garages
- Interior Wall Panelling – Brings warmth and texture to modern interiors
- Outbuildings & Sheds – Offers a refined finish without the complexity of grooved profiles
- Barn Conversions – Adds a simple, timeless look when combined with natural materials
- Retail Units or Office Buildings – For clean, modern façades that feel natural and high-end
- Fencing and Screening – Also used to create privacy screens, gates, or feature fencing
Timber Species Commonly Used
At The Larch Cladding Company, we supply high-quality square edge cladding in three of the most reliable and sustainable timber species available:
Larch
Larch is naturally durable and rich in resins, which give it excellent resistance to moisture and insects. It’s ideal for exterior use and is particularly popular in the UK due to its availability and warm, golden tones. Our Welsh-grown larch is FSC® certified and sustainably harvested from responsibly managed forests.
Cedar
Western Red Cedar is another top choice for cladding thanks to its dimensional stability, fine grain, and natural decay resistance. It weathers beautifully over time and offers a lighter weight option for those seeking a softer aesthetic.
Douglas Fir
Douglas Fir is strong and straight-grained, with a light orange-brown hue. It’s well-suited for projects that require structural integrity along with an attractive appearance.
Square Edge Cladding vs. Other Profiles
While there are many cladding profiles to choose from, square edge stands out for its simplicity and modern appeal. Here’s how it compares to some other popular profiles:
- Shiplap – Overlapping boards that shed water well, offering a traditional aesthetic.
- Tongue and Groove – Interlocking design for a seamless look, often used for tighter weatherproofing.
- Feather Edge – Tapered boards that overlap, great for rustic or agricultural-style buildings.
- Rainscreen – A ventilated system that leaves a shadow gap, offering enhanced moisture control.
Square edge cladding doesn’t interlock like these profiles, but can still be weather-resistant when properly installed with the right finishes and spacing. It’s best suited for design-led projects where clean lines and simplicity are prioritised.
How to Install Square Edge Cladding
Square edge boards are generally face-fixed onto timber battens. Depending on the look you’re going for, you can:
- Fix them flush for a seamless façade
- Add a small uniform gap between boards for a ventilated effect
- Stagger joints to avoid alignment lines
We recommend using stainless steel screws or nails to prevent corrosion and staining, especially in outdoor settings. As with any timber cladding, you should allow for expansion and contraction depending on seasonal changes and moisture content.
Maintenance and Finishes
Square edge cladding can be left untreated to weather naturally to a silver-grey hue, especially with timber species like cedar or larch. If you want to maintain the original colour, we recommend applying a UV-protective oil or stain annually or biannually.
Routine maintenance might include:
- Cleaning the surface to remove dust, debris, and mildew
- Checking fixings for any signs of movement or corrosion
- Re-applying the finish as needed, depending on the exposure level
Thanks to the natural resilience of the timbers we supply, your square edge cladding can last for decades with minimal upkeep.
Sustainability Matters
All of our square edge timber cladding is sourced from FSC® (FSC-C134890) certified forests. Choosing sustainable timber helps:
- Support responsible forestry
- Minimise carbon footprint
- Reduce dependence on non-renewable materials
- Promote biodiversity in managed woodland environments
Why Choose The Larch Cladding Company?
We’re specialists in sustainably sourced, high-quality timber. Whether you’re an architect, builder, or homeowner, we’ll work with you to supply the best timber cladding for your project.
With The Larch Cladding Company, you get:
- FSC® Certified larch, cedar, and Douglas fir timber
- Expert advice from a knowledgeable and friendly team
- A bespoke cutting service to meet exact lengths
- Nationwide delivery across the UK
- Timber is proudly sourced and milled in Wales
Ready to Order?
Whether you’re planning a modern new build or adding a touch of natural charm to an existing structure, square edge cladding offers the perfect balance of style, simplicity, and performance.
Get in touch today for expert advice, samples, and quotes. Call us on 01352 746293 or email info@thelarchcladdingcompany.co.uk.