Karl Harrison
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| Name | Karl Harrison |
| Company Name | Karl Harrison Landscapes Ltd |
| Professions | |
| City | Amersham |
| State/Region | Buckinghamshire |
| Website | |
| Bio | The UK’s Leading Decking and Design Consultant | Founder of The Decking Network | Industry Ambassador Karl Harrison stands as a respected and influential figures in the global decking and landscaping industry. For more than two decades, he has been at the forefront of exterior design, timber engineering, and the evolution of decking standards across the UK. As the creator of The Decking Network (founded 2012), Karl built the UK’s most recognised professional platform for decking design, construction standards, and industry collaboration. His technical leadership and outspoken advocacy for professional practice have shaped the way decking is specified, built, and maintained across both domestic and commercial markets. Karl has worked with the world’s leading decking brands, having been retained as a brand ambassador, technical consultant, and industry influencer for international manufacturers including Owatrol, GRAD Concept, FH Brundle, Country Supplies, Millboard and Trex, and is currently collaborating with Deckorators on UK and European market development. His role bridges technical expertise, design innovation, and public communication — helping global brands connect authentically with professional audiences. Recognised as the UK’s go-to expert for all things decking, Karl has authored the Industry Code of Practice for Timber and Composite Decking for the Association of Professional Landscapers (APL), where he also serves on the Committee. His standards-based approach underpins countless decking installations, ensuring durability, safety, and excellence in design and construction. A natural communicator and educator, Karl regularly presents at FutureScape — the UK’s largest landscaping event — where he leads the Decking Hub, a live platform dedicated to industry innovation, technical education, and product advancement. He lectures for design colleges, Associations, Societies and serves as an instructor at TASK Training Academy, delivering LANTRA-accredited training for professional landscapers and contractors. Karl’s expertise extends beyond the trade — he has featured across mainstream media, including The Telegraph, Daily Express, Homes & Gardens, Grand Designs, Love Your Garden, and Garden ER, and has appeared on George Clarke’s Ugly House to Lovely House and The Tonight Show. His contributions to the Spons External Works and Landscape Price Book further demonstrate his role as a trusted technical authority.
RICS Certificate Holder for Independent Expert Witness Fellow of the Professional Garden Consultants Association Member of the Association of Professional Landscapers Member of the Horticultural Trades Association Member of the Institute of Engineering and Technology Graduateship of the City & Guilds Institute Member of Trustmark |
Recent Posts
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How to Reduce the Cost of Landscaping a Garden
April 25, 2022How to reduce the cost of landscaping a garden The Design As a landscape consultant, I always suggest researching the most able company locally to you. Qualification and experience are essential, this coupled with a sensible portfolio of work, of course, will lead you in the right direction. Choose a company that is able to ... Read more
Decking at the APL World Skills UK
November 11, 2021Decking at the APL World Skills UK Decking at World Skills is an important component to a detailed and complex structure that the Apprentices must create. This being part of a whole garden landscaping scheme. The design details are exact and so is the judging. It’s a global competition too, as long as your country ... Read more
Garden landscaping legal expert
November 11, 2021Independent Expert for Decking This is what you need to do if you think your garden landscaping or decking project hasn’t been installed correctly. “My garden floods, my patio holds water, my wall is not level, the render is coming off the wall, the gaps in my decking are massive, my deck moves when I ... Read more
Building a designer deck in Beaconsfield
June 15, 2021Building a designer deck in Beaconsfield I received a minimal brief on this project. The clients desired a decking terrace to immediately step onto when entering their back garden. This deck would need to be made from timber and achieve a natural aesthetic. They very much wanted to walk barefoot on this deck and feel ... Read more
Making a minimum maintenance garden
May 5, 2021Making a minimum maintenance garden As per your usual a typical new build garden. This space was mainly grass with a small flagstone paving area. The garden also has a raised rail sleeper planter and path. Very basic but the grass needs regular cutting and these clients wanted to enjoy their garden with little to ... Read more