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Description
Mercia Sherwood Harlow 4mx3m Insulated Garden Room - (UPVC Windows & Doors) - GreyThe Harlow Insulated Garden Room with Anthracite UPVC delivers contemporary style and all year usability. Featuring double glazed Anthracite UPVC doors and windows, EcoQuilt insulation, and a waterproof EPDM roof, its ideal as a home office, gym, or studio. With sleek winged architecture, sustainable UK manufacturing, and customisable layouts, the Harlow is a premium, low maintenance solution to expand your living space. Key Features Anthracite UPVC
The Harlow Insulated Garden Room with Anthracite UPVC delivers contemporary style and all-year usability. Featuring double-glazed Anthracite UPVC doors and windows, EcoQuilt insulation, and a waterproof EPDM roof, it’s ideal as a home office, gym, or studio. With sleek winged architecture, sustainable UK manufacturing, and customisable layouts, the Harlow is a premium, low-maintenance solution to expand your living space.
Key Features
- Anthracite UPVC Doors & Windows – Stylish, secure, and low-maintenance
- All-Year Comfort – Eco-Quilt insulation in walls, roof, and floor
- Enhanced Security – High-performance locking system on doors & windows
- Double-Glazed Glazing – Excellent thermal and acoustic insulation
- EPDM Roof Membrane – 50-year lifespan, waterproof and UV-resistant
- Customisable Layout – Flexible door/window placement and upgrades available
- UK Made & Sustainable – FSC-certified timber and expert British craftsmanship
- Electrics-Ready Walls – Removable internal panels for concealed wiring
Specifications
| Feature | Details |
|---|---|
| Product Name | Harlow Insulated Garden Room – Anthracite UPVC |
| Range | Sherwood Premium Range |
| Treatment Type | Untreated (Annual treatment recommended) |
| People Required | Fully Fitted by Expert Installers |
| Guarantee | 10-Year Anti-Rot Guarantee |
| Cladding | Shiplap+ Tongue & Groove |
| Wall Thickness | 72mm Double Skinned with EcoQuilt Insulation |
| Roof Material | OSB & 12mm Tongue & Groove |
| Roof Covering | EPDM Rubber Membrane (50-Year Lifespan) |
| Floor Material | 16mm Tongue & Groove + AirTec Insulation |
| Door Style | Double French Doors (Anthracite UPVC, Double Glazed) |
| Window Style | Anthracite UPVC, Double Glazed |
| Available Finishes | Anthracite, Oak, White, or Timber |
| Customisation Options | Window/Door Placement, Additional Openings |
| Building Type | Insulated Garden Room / Home Office / Garden Studio |
| Manufactured In | United Kingdom |
| Timber Source | Sustainably Sourced, FSC-Certified |
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
4.1 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Finally a Toy My Aggressive Chewer Can’t Destroy
Color: Green, Pattern Name: Hammerhead Shark
My dog is an extremely aggressive chewer, and finding toys that last more than a few minutes has always been a challenge. Most toys are destroyed almost immediately, but this one has held up incredibly well. He chews on it constantly, and it still hasn’t been destroyed!
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Reviewed in the United States on May 30, 2026
★★★★★ 3
A Green Hard Plastic Sea Creature? Chew Toy
Color: Green, Pattern Name: Hammerhead Shark
This is a sturdy chew for my 40 lb retriever who is 9 months old. BUT after she has been chewing on it there are sharp edges which hurt my fingers when she wants me to throw it.
It is strong and she enjoys it, so she can continue as long as she wants but, If it cuts her tongue or mouth it’s gone.
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Reviewed in the United States on January 30, 2026
★★★★★ 5
Strongest squeak toy for aggressive chewer
Color: Green, Pattern Name: Hammerhead Shark
I have been through so many toys for my aggressive super chewer pit bull puppy. He has shredded the bark box super chewer toys and most super chewer toys. Wet have had this toy for over a month and he still lives it! The squeaker odds in the middle of the toy and impossible to tear out and it still squeaks! This has been a very impressive toy.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
My Puppy Loves this Indestructible Dragon
Size: Large, Color: Pink, Size: Large, Color: Pink
My puppy (8 month old black lab mix) loves, loves, loves her dragon. She has had it for 2 months now. It is one of her favorites and gets daily rough play time. It's her go-to toy for fetch and tug games, as well as just general mouthy play. The squeaker gave out after about 4 weeks, but she would binge squeak for prolonged periods (kind of like chomping on gum) so it was almost a blessing when it went silent. She still chomps on it, but at least now I don't have to hear it. Other than the fact that it's a little grungy and bedraggled from so much loving, it is still in amazing shape. The seams and fur are all still intact. There are no visible holes, rips, or weak spots. I love Chew Guard Technology.
This dragon replaced her goDog Iguana (from PetSmart) that developed a tear in the fur after about 4 months of heavy use. (It was superficial, just the outer fur layer and not the innards, but we disposed of it before she could eat more fur.) She can be pretty rough on her toys and I can never predict if any given toy will last minutes or months. The goDog stuffies definitely fall into the "months" category, even with rough daily use.
Edit: The dragon lasted about 6 months of intensive, hard play before it developed a small tear in the fur. I patched it a couple times, but once my pup discovers a weak spot, it's the kiss of death for any stuffed item. We had to dispose of the dragon (so sad) to keep her from eating any more of the fur. We replaced the dragon with the goDog Chameleon, which is still going strong. I think we will go back to the dragon for our next toy because it's just so darned cute. We gave the dragon to my niece for her golden retriever puppy who is very chew-happy. That dragon is also doing well. You've just gotta love that chew-guard technology. This is one tough toy.
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Reviewed in the United States on September 26, 2015
★★★★★ 5
Precious toy for big dogs too
Size: Large, Color: Skinny Green
Not only is this toy cute and fun, but material is thick and durable even for my crazy GSP who is a destruction artist. This is, the favorite toy his go to in the toy box.
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Reviewed in the United States on May 15, 2026