18ft (5.32m) Wide

Immerse yourself in the luxury of space and sophistication with our exquisite range of 18ft front-width summerhouses, the pinnacle of garden elegance. The Mercia Maine Summerhouse with Patio Area is a standout model meticulously designed for those wh...Read more

Immerse yourself in the luxury of space and sophistication with our exquisite range of 18ft front-width summerhouses, the pinnacle of garden elegance. The Mercia Maine Summerhouse with Patio Area is a standout model meticulously designed for those who appreciate the finer things in life. This summerhouse is not just a building; it's a lifestyle statement, offering ample space for various uses. Whether you envisage it as a sheltered area for outdoor seating, a chic garden bar, or even a splendid hot tub location (not included), this model transforms your garden into an exclusive retreat.

Its expansive size makes it ideal for hosting gatherings, indulging in hobbies, or simply unwinding in a luxurious space that bridges the comfort of your home with the beauty of the outdoors. Looking for different options for your 18ft Summerhouse? We offer a bespoke service on the Shire Cali, Mayfield, Miami and Lela Summerhouses, so you can choose to make these 18ft to fit your needs. These bespoke models also have optional side shed/storage.

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Bring unparalleled scale and timeless character to your garden with the 18 x 10 Powersheds Apex Log Cabin, meticulously fashioned from 44mm interlocking logs for supreme structural resilience. Equipped with premium anthracite uPVC double doors and windows, this extraordinarily wide outbuilding delivers a highly insulated, secure, and adaptable setting designed for all seasons. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £6,829.99
Save £554.01
Was £7,384.00

Command ultimate outdoor luxury with the breathtakingly proportioned 18 x 12 Powersheds Apex Log Cabin, constructed from exceptionally dense 44mm interlocking logs for lifelong stability. Showcasing architectural-grade anthracite uPVC double doors and windows, this colossal garden building furnishes a remarkably secure, highly insulated, and sophisticated environment tailored for year-round habitation. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £7,199.99
Save £584.01
Was £7,784.00

Establish an imposing, year-round haven in your garden with the extraordinarily deep 18 x 14 Powersheds Apex Log Cabin, constructed from substantial 44mm interlocking logs for uncompromising durability. Outfitted with high-security anthracite uPVC double doors and windows, this colossal timber retreat provides a thermally efficient, beautifully finished environment that easily accommodates your grandest plans. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £7,532.99
Save £611.01
Was £8,144.00

Maximise your property's potential with the extraordinarily deep and wide 18 x 16 Powersheds Apex Log Cabin, meticulously engineered from formidable 44mm interlocking logs for superior structural resilience. Featuring top-tier anthracite uPVC double doors and windows, this colossal garden building delivers a highly secure, impeccably insulated, and visually stunning environment for year-round utilisation. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £7,916.99
Save £642.01
Was £8,559.00

Command ultimate architectural presence with the perfectly square, monumental 18 x 18 Powersheds Apex Log Cabin, meticulously crafted using ultra-thick 44mm interlocking logs for uncompromising rigidity. Outfitted with superior anthracite uPVC double doors and windows, this colossal timber retreat delivers a highly insulated, secure, and visually breathtaking environment tailored for luxurious year-round use. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £8,244.99
Save £669.01
Was £8,914.00

The 18 x 6 Maine Summerhouse with Patio Area has everything in one garden building. Relax in the bright and airy space inside the summerhouse and keep garden tools in the handy side shed. Top features include:

  • Fully glazed french doors
  • Two full-length fixed styrene glazed windows
  • Patio area for relaxing or to home a hot tub
  • Shiplap 12mm tongue and groove cladding
  • Window and door can be reversed
  • Manufactured in the UK using sustainably sourced timber
COLOURS
Castle GreenCloveDoveDriftwoodLakesideOlive Tree
ONLY £1,448.99
Save £201.00
Was £1,649.99

Introduce a spectacular panoramic aesthetic to your garden with the exceptionally wide 18 x 8 Powersheds Apex Log Cabin, constructed from dense 44mm interlocking logs for unyielding durability. Featuring architectural-grade anthracite uPVC double doors and windows, this extended timber building offers a highly secure, thermally sound, and elegant solution for all-season use. The key features include:

  • 44mm precision-cut interlocking logs
  • Anthracite grey uPVC-framed double-glazed double doors and windows
  • Doors and windows can be positioned to suit your preferred layout
  • 19mm tongue and groove roof and floor boards
  • Perfect height for ample headroom while remaining under 2.5m overall
  • Durable EPDM rubber roofing cover
  • Complimentary 5L premium exterior wood preserver included
  • Finished with decorative Burford-style skirting
  • Backed by a 10-year guarantee and designed for durability of up to 50 years
 
FROM £6,492.99
Save £526.01
Was £7,019.00

18ft (5.32m) Wide

The features found in these 18ft wide models are carefully selected to enhance your experience. A 10-year anti-rot guarantee might be included, ensuring your summerhouse remains a lasting feature of your garden. Large French double doors add grandeur and create an inviting and accessible entrance, while fixed glazing allows for uninterrupted views and natural light. The construction might boast high-quality shiplap tongue and groove boards, offering durability and a refined finish. Dip-treated timber could be used for extended life, further underlining the commitment to quality. Complemented with mineral roof felt, the pent roof design adds a contemporary flair and ensures efficient water runoff.

Additionally, using environmentally friendly FSC-certified timber in some models reflects a commitment to sustainability without compromising style. These 18ft wide summer houses are more than just garden buildings; they are a testament to luxury, functionality, and environmental consciousness, designed to elevate your outdoor living experience to new heights.