


Arran 3m x 4m
Arran 3m x 4m – More Room, More Possibilities
Need a little more space to spread out? The Arran 3m x 4m Cabin offers the same timeless design and high-quality finish as its 3x3 sibling — but with added length to give you even more flexibility. Whether you're setting up a business base, a hobby room, or a relaxing retreat, this cabin has you covered.
Built to Last — and Built to Live In
While some garden buildings feel like glorified sheds, the Arran is built differently. With 45mm slow-grown timber walls, double-glazed timber windows and doors, and a bitumen shingle roof, this cabin is warm, weather-resistant, and secure. It's made to be used — and enjoyed — all year round.
A Cabin That Works Around You
With 10 square metres of floor space and a generous overhang, the Arran 3m x 4m is ideal for:
- A full home office setup
- A client-facing studio or consulting space
- A garden gym or meditation room
- A dual-purpose workspace and chill-out zone
- Stylish overnight guest accommodation
Its rectangular layout makes zoning and furnishing simple and intuitive.
Cabin Specifications
External Size | 3m x 4m (9.8ft x 13ft) |
Wall Thickness | 45mm |
Windows | Double Glazed Timber Windows |
Doors | Double Glazed Timber Doors |
Roof Type | Bitumen Shingles |
Ridge Height | 2450mm |
Wall Height | 2050mm |
Floor and Roof Boards | 19mm |
Floor Bearers | 45mm x 50mm |
Premium 45mm Thick Timber Walls
Designed for excellent thermal efficiency, durability, and a luxury finish.
Bitumen Shingle Roof
Strong, stylish, and built to withstand the unpredictable British weather.
Bright, Secure Windows & Doors
Double glazed as standard. Let the light in while keeping the cold out with optional uPVC upgrades.
Efficiently Designed
Makes the most of its footprint to give you a functional space for work, rest, or hobbies.
Sustainably Sourced Timber
FSC-certified Scandinavian Pine ensures your cabin is strong, attractive, and eco-conscious.

Arran 3m x 4m
We include free UK delivery with every cabin — no hidden fees, no confusing shipping charges.
Here’s how it works:
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Built to Order
Your cabin is custom-manufactured at our European factory using slow-grown Scandinavian Spruce for superior quality.
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Shipped & Cleared
Once ready, your cabin is securely packed and shipped in a freight container. All customs and import paperwork are handled on your behalf — there’s nothing you need to do.
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Delivered to Your Door
Once in the UK, your cabin is stored at our partner’s secure depot and scheduled for kerbside delivery using a specialist lorry with forklift (Moffett).
You’ll receive a dispatch confirmation and a call to book a delivery date (usually within 14–21 days).
You (or someone you’ve told us about in advance) must be present to accept delivery. Our delivery partner may request access photos to ensure a smooth handover.

Built for Life
We partner with trusted manufacturers who craft cabins using proven techniques and sustainably sourced materials. With the right care and setup, your cabin will remain a stylish, functional space for years to come. It’s not just a shed — it’s a smart investment in your everyday wellbeing. Please note: All images shown are for illustration purposes only. Actual product appearance may vary due to enhancements, supplier changes, or customer-selected options.

Ready to Create Your Space?
Whether you’re working from home, launching a new hobby, or simply craving more breathing space, your Clever Built Cabin is ready to bring your vision to life.
Pay a 50% deposit today to reserve your cabin and take the first step toward transforming your space.
FAQs
We know buying a cabin is a big decision — and we’re here to make it easy. Below you'll find answers to the most common questions we get asked. If you can’t find what you're looking for, don’t worry — just get in touch and we’ll be happy to help.
Do you have any showrooms I can visit?
We don’t currently have physical showrooms — and that’s a deliberate choice. By not being tied to one location, we can serve customers across the entire UK while keeping our prices competitive. Instead of spending on costly display sites, we focus on what really matters: delivering high-quality, great-looking cabins for the best possible price. So, while you won’t find us on the high street, you’ll find your budget goes further.
What is a flat pack log cabin?
A flat pack cabin is a high-quality wooden structure delivered as a kit — ready for you to build.
Think of it like adult LEGO, but with more satisfaction at the end. Every piece is precision-cut and labelled, and our easy-to-follow instructions make assembly simple for most DIYers or local tradespeople. Flat pack gives you flexibility, convenience, and cost savings — all delivered to your door.
How do I look after my log cabin?
Your log cabin is built to last — and with a little TLC, it’ll keep looking its best for years. We’ve created a simple Cabin Aftercare Guide that covers everything from treatment tips to seasonal checks.
Regular maintenance helps preserve the timber and ensures your warranty stays valid. You’ll receive this guide with your order, or you can download it here.
Do I need to insulate my log cabin?
That depends on how you’re using your cabin. For occasional use in summer, many customers are happy without insulation. But if you plan to use your cabin year-round — for work, guests, or hobbies — insulation is a smart investment.
We offer models with insulated floors, walls, and roofs, or you can add insulation yourself. Check out the handy diagram below:
Do I need planning permission for my cabin?
In most cases, no — our cabins are designed to fall within permitted development rules. As a general rule, you’re fine if:
- The cabin is under 2.5m in height (for flat roofs) or 4m (for apex roofs)
- It’s not being used as a permanent residence
- It sits behind your house and doesn’t cover more than 50% of your garden
However, rules can vary slightly by council. We always recommend checking with your local authority or visiting the Planning Portal for peace of mind.
How warm are log cabins in winter?
Timber is a natural insulator, and our log cabins are built using high-grade slow grown Scandinavian timber that retains heat well.
Add insulation and a small heater, and you’ll be surprised how cosy your cabin becomes — even in the colder months.
For all-season comfort, choose one of our insulated models or speak to us about how to upgrade yours.
Do you deliver across the UK?
Yes — we deliver nationwide and free of charge.
Delivery is kerbside using our trusted partner. This means the cabin will be brought to the nearest accessible point next to your property (e.g. driveway or roadside).
Please let us know in advance if there are tight lanes, steep gradients, or limited turning space so we can plan accordingly.
Our cabins arrive securely wrapped and palletised, and will be professionally offloaded by our experienced delivery team.
What are Clever Built Cabins made from?
All our cabins are crafted from high-grade Scandinavian spruce — a timber grown in the coldest regions of Northern Europe, where trees grow slowly and steadily.
This slower growth results in dense, fibrous wood that’s naturally strong, stable, and resistant to cracking or warping — exactly what you want in a long-lasting log cabin.
Scandinavian spruce is a favourite for premium log buildings because it:
- Has a fine grain and tight growth rings for structural strength
- Offers natural insulation and weather resistance
- Comes from FSC-certified, sustainably managed forests — so you can build your dream cabin without harming the planet
In short: it’s the ideal material for a robust, great-looking cabin that stands the test of time — and the British weather.
What can I use my cabin for?
The better question might be — what can’t you use it for?
Customers have turned their cabins into:
- Home offices or studios
- Garden bars and entertainment rooms
- Hobby workshops
- Guest bedrooms
- Kids' dens
- Gyms and yoga spaces
- Therapy rooms
- Airbnb pods (where planning allows)
Your imagination sets the limits.
Can I customise my cabin?
Absolutely. Whether it’s extra windows, a double door, higher walls, or a custom layout — we’ve got options.
You can submit a request through our Custom Cabin Builder here, or drop us a message with your ideas.
Your space, your way — just let us know what you need