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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28
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Description
Mercia Sherwood Harlow 4mx4m Insulated Garden Room - (UPVC Windows & Doors) - GreyThe Harlow 4m x 4m Insulated Garden Room is a modern, all season space ideal for a home office, studio, or garden gym. With a bold architectural wing design, Eco Quilt insulation, double glazed doors and windows, and a 50 year EPDM rubber roof, it blends high performance with style. Customisable and UK made from sustainable timber, the Harlow is perfect for adding value, space, and functionality to your outdoor area. Key Features Striking Contemporary
The Harlow 4m x 4m Insulated Garden Room is a modern, all-season space ideal for a home office, studio, or garden gym. With a bold architectural wing design, Eco-Quilt insulation, double-glazed doors and windows, and a 50-year EPDM rubber roof, it blends high performance with style. Customisable and UK-made from sustainable timber, the Harlow is perfect for adding value, space, and functionality to your outdoor area.
Key Features
- Striking Contemporary Design – Features unique winged architecture and clean geometric lines
- Year-Round Use – Insulated walls, roof, and floor keep it warm in winter and cool in summer
- Double Glazing Throughout – French doors and windows provide natural light and insulation
- Removable Internal Panels – Easy to install and conceal electrical wiring for a clean finish
- Superior Roofing – Long-lasting EPDM rubber roof with a 50-year lifespan
- Fully Customisable – Choose window/door locations and upgrade options to suit your needs
- Sustainable Timber – Ethically sourced and manufactured in the UK by skilled craftsmen
- Low Maintenance – Premium cladding and finishes ensure long-term durability and style
Specifications
| Feature | Details |
|---|---|
| Product Name | Harlow Insulated Garden Room – 4m x 4m |
| Range | Sherwood |
| Size Variants | 3x4m, 4x3m, 4x4m, 5x3m, 5x4m, 6x3m, 6x4m |
| Treatment Type | Untreated (Annual treatment required for guarantee) |
| Build Method | Fully Installed by Expert Team |
| Guarantee | 10-Year Anti-Rot Guarantee |
| Wall Thickness | 72mm Double Skinned with Removable Internal Panels |
| Roof Material | OSB & 12mm Tongue & Groove |
| Roof Covering | EPDM Rubber Membrane – 50-Year Lifespan |
| Floor Material | 16mm Tongue & Groove |
| Insulation | Eco-Quilt (Walls & Roof), AirTec (Floor) |
| Doors | Double French Doors (Double Glazed) |
| Windows | Double Glazed (Configurable Layout) |
| Door Style | Double Doors |
| Building Type | Garden Room / Office / Gym / Studio |
| Manufactured In | United Kingdom (Using Sustainable Timber) |
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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
This is the best luster, the double-sided
Size: 13"x19"
I was disappointed when I accidentally bought the single-sided luster because I like getting double-sided luster from a sub, as it gives you the superior 74 lb paper. I don't even use it to print on both sides. I have it simply because it is thicker, and one thing that I've also noticed that is kind of strange, is this has a better and more textured surface than a Subs single-sided luster for the 13x19 format. I consider the luster that is single-sided, to be a texture that is between what this double-sided Buster is, and A-Sub's Satin finish. Now that I have the premium glossy, the double-sided luster, luster, and satin, I have everything I need for a ton of prints! Thank you so much asub, because you are better quality than the Staples paper which I figured would be the more expensive paper and maybe better because it's coming from a brick-and-mortar store, but your resin Coatings are better than theirs, and therefore yours soaks up the ink faster and doesn't leave Pizza wheel marks. There is simply no reason, unless you have to have the watermarks on the back from the professional paper, to buy professional paper. This stuff is professional just without the water mark or the higher price
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Excellent Quality – Perfect for Custom Projects
Size: 13"x19"
When I ordered this paper, I wasn’t sure if it would be thick enough. My daughter wanted to create a custom calendar for the family, and I offered to handle the printing. I noticed it was double-sided and appeared to have a similar finish on both sides, so I decided to give it a try.
To my surprise, the quality was even better than expected. The thickness was just right for the project, and the calendars turned out beautifully—crisp, vibrant, and professional-looking. The paper held the colors well throughout the entire print job.
In the end, the whole family loved how the calendars came out. I’d definitely use this paper again for future creative projects!
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Reviewed in the United States on May 30, 2025
★★★★★ 5
A-SUB Iron-On
Number of Items: 20
I am thoroughly impressed with the A-SUB Iron-On Heat Transfer Paper! The color accuracy is excellent; my designs printed vividly and transferred beautifully to my white cotton shirts with pigment ink, looking almost like a professional sublimation print. Printer compatibility is a breeze as it works perfectly with my standard inkjet printer, and I experienced no paper jams.
For use, it's incredibly versatile for DIY projects like t-shirts, tote bags, and aprons. The included instructions were clear, making the transfer process with my home iron straightforward for a beginner like me. The paper's thickness feels sturdy enough to go through the printer without issues but isn't overly bulky on the fabric after pressing.
Considering the quality and the number of sheets in the pack (I got 20 sheets for around $14 USD), the value for money is fantastic. The transfers have held up well after several washes (following the care instructions carefully—inside out, cold water, no bleach), with no cracking or peeling. This is a great product for anyone looking to personalize their wardrobe!
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Looking for JetProSS? This is the closest you will find on Amazon, might even be better?
If you are like us and have been in need of JPSS quickly, i'm sure you have tried various brands on here that were available for white the next day. Some come close to Neenah's almost perfect Jet Pro line but you typically get the 'negative' area dark box on lighter greys and even on some whites.
Since we are familiar with A-Sub's amazing Sub paper, we deceided to give this a run for the money.
Impressive. This paper is awesome! Really like the outcome of the graphic. Were just a few of the comments made by pressers that day.
Think we are going to give a head-to-head competition with some this week and will post pics post-press and after washing to see how it holds up vs JPSS
Stay away from brands on here that appear to be beta versions and actually have their models labeled with 1.0, 2.0 etc. They might be ok for a one off event where the likely hood of someone wearing again post event is slim
Happy with the outcome thus far!
Great quality and price
we will be back for sure!
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Reviewed in the United States on February 17, 2024
★★★★★ 5
Highly recommend
This transfer paper work exceptional well on white fabric. I’m super happy with the outcome.
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Reviewed in the United States on January 20, 2026
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