SKU: 23209617154

Mercia 4m x 3m(D) Insulated Garden Room

Sale price$4308.75 Regular price$4787.50
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

Mercia 4m x 3m(D) Insulated Garden RoomThe 4 x 3m Mercia Insulated Garden Room provides versatile, year round space with superior Eco quilt insulation in walls, roof, and floor. Featuring triple layer walls, double glazed argon filled windows, and a durable EPDM rubber roof, it ensures warmth and weather protection. Crafted from sustainable UK timber, this garden room stands under 2. 5m, typically avoiding planning permission. Professional installation included for a hassle free

The 4 x 3m Mercia Insulated Garden Room provides versatile, year-round space with superior Eco-quilt insulation in walls, roof, and floor. Featuring triple-layer walls, double-glazed argon-filled windows, and a durable EPDM rubber roof, it ensures warmth and weather protection. Crafted from sustainable UK timber, this garden room stands under 2.5m, typically avoiding planning permission. Professional installation included for a hassle-free experience.

Key Features

  • 4 x 3m insulated garden room for all-season use
  • Triple-layer wall design with 44mm Eco-quilt insulation
  • Double-glazed argon-filled windows for energy efficiency
  • 16mm tongue & groove roof and floor with insulation
  • Long-lasting EPDM rubber roof membrane by Firestone
  • Under 2.5m height — usually no planning permission needed*
  • Manufactured in the UK with sustainably sourced timber
  • Free professional installation included
    *Verify with your local authority.

Specifications

Feature Detail
Imperial Size 13 x 10 ft
Metric Size 4 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 13' 8" / 4.17 m
Depth 12' 8" / 3.86 m
Door Width 4' 11" / 1.50 m
Door Height 6' 1" / 1.85 m
Internal Width 13' 1" / 4.0 m
Internal Depth 9' 10" / 3.0 m
Floor Width 13' 6" / 4.11 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:
  1. 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
SKU: 23209617154

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Ryan flores
Fort Morgan, US
★★★★★ 5
Great duvet insert
Size: King, Style: Light
Perfect duvet insert. I got a pretty expensive duvet to cover this and they worked great together. The fit was perfect and I didn’t feel like the duvet was smaller than its cover. This was a cheap option that keep us warm while not being too think. This product is also breathable and recommend if you live in a place that transitions from hot to cold often.
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Reviewed in the United States on April 6, 2026
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Juliane P.
Cuba, US
★★★★★ 5
Great mid-weight comforter
Size: King, Style: Light
Great comforter, especially for the price. I put it in the dryer for a bit when I first got it and it became nice and fluffy. Perfect mid-weight duvet.
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Reviewed in the United States on May 12, 2026
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Stressed Mama
Carnegie, US
★★★★★ 5
Totally love them
Color: Dark Tortoise, Size: 55-18-140
Super cute a little bigger than I expected but still adorable and trendy!
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Reviewed in the United States on January 17, 2026
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TR
Cuba, US
★★★★★ 5
Attractive Quality
Color: Dark Tortoise, Size: 55-18-140
Attractive and comfortable. May need adjusted depending on your head size. I have gotten several compliments on these frames.
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Reviewed in the United States on December 18, 2025
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Heyseht
New York, US
★★★★★ 5
Lo que necesitaba
Color: Dark Tortoise, Size: 55-18-140
Muy bonitas, me quedaron perfectas, a buen precio.
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Reviewed in the United States on December 11, 2025

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