Mercia 9 x 9 Premier Corner Summerhouse

The Mercia 9 x 9 Premier Corner Summerhouse is a stylish and spacious garden retreat, perfect for relaxing, entertaining, or creating a hobby room. Designed to fit neatly into any garden corner, this timber summerhouse features four large windows and glazed French doors, offering panoramic views and natural light. Made in the UK using sustainably sourced, high-quality 12mm Shiplap tongue & groove cladding, it’s built for durability and long-term performance. With interlocking roof and floor panels, weatherproof felt roofing, and shatterproof styrene glazing, this summerhouse combines premium construction with elegant design.

Key Features

• Neatly fits into garden corners to maximise space

• Glazed double French doors with four large windows

• Shatterproof styrene glazing for added safety

• Made in the UK with FSC-certified, dip-treated timber

• 12mm Shiplap tongue & groove cladding for strength

• Interlocking tongue & groove roof and floor panels

• Includes secure lock & key plus roofing felt

• 10-year anti-rot guarantee (with annual treatment)

Dimensions

• Width: 291cm

• Depth: 291cm

• Ridge Height: 215cm

• Eaves Height: 200cm

• Internal Width: 275cm

• Internal Depth: 275cm

• Floor Width: 280cm

• Floor Depth: 280cm
  *All measurements are approximate

Base Requirements

This summerhouse must be installed on a solid, level surface such as concrete, paving slabs, or a wooden decking base to ensure stability and long-term durability.

Click Here for the 9x9 Premier Corner Summerhouse Instruction Manual

Delivery Information

Estimated delivery is within 1–3 weeks. The courier will contact you to confirm a convenient delivery date. Free delivery is available to most mainland UK postcodes, but some areas may incur a surcharge.

What to Expect From A Mercia Delivery

Mercia Installation Service