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      SKU:SI-011-002-0005
Mercia
Mercia 4m x 3m(D) Self Build Insulated Garden Room
Mercia 4m x 3m(D) Self Build Insulated Garden Room
Regular price
        
          £6,780.00
        
    
        Regular price
        
          
            
              
            
          
        Sale price
      
        £6,780.00
      
    
    
      Unit price
      
        
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- Free UK Delivery *
- 1 - 3 weeks
- We accept major credit card providers including Mastercard, Visa, Discover and American Express as well as PayPal. See our footer menu for all payment methods.
Transform your outdoor space with the 4 x 3m Mercia Self-Build Insulated Garden Room — the perfect solution for a home office, studio, or hobby space. Built with 72mm double-skinned insulated walls, double-glazed windows, and a fully insulated roof and floor, it’s ideal for year-round use. The modular design offers flexible door and window placement, while the sleek pent roof ensures durability, style, and excellent rainwater run-off. Made in the UK with sustainable timber.
Key Features
- Spacious 4 x 3m insulated garden room for all-year use
- 72mm thick double-skinned walls with full insulation
- Double-glazed windows for warmth and energy efficiency
- Modular design allows custom door and window placement
- Contemporary flat pent roof with high-grade mineral felt
- Manufactured in the UK using sustainably sourced timber
- Fixtures, fittings, instructions, and video guide included
- 10-year anti-rot guarantee (annual treatment required)
Specifications
| Feature | Detail | 
|---|---|
| Imperial Size | 14 x 11 ft | 
| Metric Size | 4 x 3 m | 
| Treatment Type | Untreated | 
| Guarantee | 10 Years (with annual treatment) | 
| Cladding | Shiplap+ | 
| Roof Material | Tongue & Groove | 
| Floor Material | Tongue & Groove | 
| Roof Type | Pent | 
| Door Style | Double Door | 
| Building Type | Garden Room | 
| Width | 13' 8" / 4.17 m | 
| Depth | 10' 11" / 3.34 m | 
| Eaves Height | 7' 2" / 2.2 m | 
| Ridge Height | 7' 8" / 2.36 m | 
| Door Width | 4' 11" / 1.51 m | 
| Door Height | 6' 0" / 1.85 m | 
| Internal Width | 13' 1" / 4.0 m | 
| Internal Depth | 9' 10" / 3.0 m | 
| Floor Width | 13' 6" / 4.14 m | 
| Floor Depth | 10' 3" / 3.14 m | 
| Under 25m² | Yes | 
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