The Mercia 18 x 6 Maine Summerhouse with Patio Area is a stylish and functional addition to any outdoor space. Featuring a modern pent design, it offers a spacious indoor area alongside a sheltered patio, making it perfect for a hot tub for relaxation, entertaining, or outdoor dining. Whether you're looking for a peaceful retreat or a social hub for gatherings, this summerhouse delivers versatility in any garden setting.

Built from high-quality 12mm shiplap tongue and groove cladding, the structure ensures durability and weather resistance. The tongue and groove roof and floor provide extra strength, while the internal framing enhances stability. The fully glazed double doors allow plenty of natural light to flow in, creating a bright and welcoming interior.

This summerhouse comes with a 10-year anti-rot guarantee, ensuring long-term protection. With easy-to-follow instructions, assembly is straightforward, allowing you to enjoy your new garden space with minimal hassle.

Key Features

• Modern pent design – Provides a sleek and contemporary look
• Spacious indoor area – Ideal for relaxation, storage, or hobbies
• Sheltered patio – Perfect for a hot tub, garden furniture, or entertaining
• 12mm shiplap tongue and groove cladding – Ensures durability and weather resistance
• Tongue and groove roof and floor – Adds strength and longevity
• Fully glazed double doors – Allows plenty of natural light inside
• 10-year anti-rot guarantee – Provides long-lasting protection
• Simple assembly – Includes detailed instructions for easy installation
• Windows – Shatterproof styrene glazing

Dimensions

• Width: 17'5" / 5.32m
• Depth: 7'7" / 2.33m
• Ridge Height: 7'1" / 2.17m
• Eaves Height: 6'10" / 2.09m
• Internal Width: 9'4" / 2.86m
• Internal Depth: 5'7" / 1.71m
• Door Width: 3'0" / 0.92m
• Door Height: 5'7" / 1.71m

Base Requirements

To ensure stability and longevity, the summerhouse must be installed on a firm and level base such as concrete, paving slabs, or pressure-treated timber bearers.

Click here to view Mercia summerhouse main building assembly instructions

Click here to view Mercia summerhouse patio area assembly instructions

Delivery Information

• Mainland UK: Delivery within 1–3 weeks.
• Surcharge Areas: Delivery times may vary, and additional charges may apply.

The courier will contact you in advance to confirm the delivery date. The summerhouse is supplied as a ready-to-assemble kit with pre-cut panels, fixtures, and detailed instructions for an easy build. An installation service from Mercia is available.

Mercia Garden Products Installation Delivery Process

What to Expect From A Mercia Delivery

Mercia Installation Service