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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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Description
Mercia 3m x 3m(D) Insulated Garden RoomThe 3 x 3m Mercia Insulated Garden Room offers year round comfort with Eco quilt insulation in the walls, roof, and floor. Built with triple layer construction, double glazed argon filled windows, and an EPDM rubber roof for superior weather resistance, its perfect as a home office, studio, or retreat. Crafted in the UK from sustainable timber, this modern garden room is under 2. 5m high, so it typically avoids planning permission. Professional
The 3 x 3m Mercia Insulated Garden Room offers year-round comfort with Eco-quilt insulation in the walls, roof, and floor. Built with triple-layer construction, double-glazed argon-filled windows, and an EPDM rubber roof for superior weather resistance, it’s perfect as a home office, studio, or retreat. Crafted in the UK from sustainable timber, this modern garden room is under 2.5m high, so it typically avoids planning permission. Professional installation is included.
Key Features
- 3 x 3m insulated garden room for all-year use
- Triple-layer wall construction with Eco-quilt insulation
- Double-glazed argon-filled windows for warmth and efficiency
- 16mm tongue & groove roof and floor with insulation
- Durable EPDM rubber roof for long-lasting weather protection
- Under 2.5m height — often no planning permission required*
- Made in the UK from sustainably sourced timber
- Free professional installation included
*Check with your local authority to confirm.
Specifications
| Feature | Detail |
|---|---|
| Imperial Size | 10 x 10 ft |
| Metric Size | 3 x 3 m |
| Treatment Type | Untreated |
| People Required | Fully Fitted (Installation Included) |
| Guarantee | 10 Years (with annual treatment) |
| Cladding | Shiplap+ |
| Cladding Material | 16mm Shiplap+ Tongue & Groove |
| Roof Material | OSB & 12mm Matchboard |
| Floor Material | 16mm Matchboard |
| Roof Type | Flat Roof |
| Roof Covering | EPDM Rubber (Firestone) |
| Door Style | Double Door |
| Building Type | Garden Room |
| Width | 10' 5" / 3.18 m |
| Depth | 12' 8" / 3.86 m |
| Door Width | 4' 11" / 1.50 m |
| Door Height | 6' 1" / 1.85 m |
| Internal Width | 9' 10" / 3.0 m |
| Internal Depth | 9' 10" / 3.0 m |
| Floor Width | 10' 3" / 3.12 m |
| Floor Depth | 10' 3" / 3.12 m |
| Under 25m² | Yes |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Definitely worth the price
Size: 6.5, Color: Black/Black
Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.
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Reviewed in the United States on January 3, 2026
★★★★★ 5
Snagged a deal
Size: 7, Color: Redwood/Gum 10
I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Cute, comfortable waterproof boots (a little snug to put on)
Size: 7, Color: Velvet Tan/Gum 2
These are really cute Chelsea-style boots and feel very comfortable once they’re on. The waterproof material is great for wet weather and the sole feels sturdy with good traction. They look stylish enough to wear casually but still feel practical for rainy days.
The only downside is they can be a little difficult to put on at first because the opening is somewhat snug, but once they’re on they fit well and feel supportive. Overall they’re a great waterproof boot and I’ve enjoyed wearing them.
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Surprisingly great for my wide feet and high instep!
Size: 10.5, Color: Velvet Tan/Gum 2
So thrilled I took a chance on these. Finding boots is impossible for me. I have wide feet, a super high instep, a bunion on one foot, and I wear a hard to find size (10.5). I ordered the 10.5 and 11 in these expecting I might need to size up for width (if I could even get them on). It was a struggle getting the 10.5s on the first time, and once I did they were somewhat uncomfortable on the top of my left foot. But I read that they would relax so decided to give it a go because I need waterproof boots for an upcoming trip and the 11s felt too long. After two days of light wear, they are already breaking in and I have no more discomfort. Getting them on is already easier and they are plenty wide enough and very comfortable to walk in. These are true to size. Super happy and worth a day of mild discomfort to break them in!
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Reviewed in the United States on March 7, 2026
★★★★★ 5
Comfortable, sturdy, waterproof
Size: 9.5, Color: Black/Black
Loce, love, love these boots. Have walked ten miles with no foot pain around NYC. They go with everything and and are so comfortable. As they are waterproof/resistant, they get a little warm in high temps, but perfect three-season boots.
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Reviewed in the United States on May 17, 2026