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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TASK Academy Gains Advantage Accreditation for Practical Landscaping Training
April 30, 2026The landscape industry needs more than enthusiasm. It needs structured training, real-world knowledge and practical skills that help people build better gardens, patios, decks and outdoor spaces. That is why the news from TASK Academy deserves attention. TASK Academy has now become an Advantage Accreditation training centre, and selected courses now carry Advantage Learning Material ... Read more
The race for realistic composite decking, and whether the market actually needs another one
April 28, 2026Not Another Deck Board? Every now and again, another decking board appears and tells us the world has changed. It arrives with handsome photography, a confident launch, a technical story and a promise that decking has moved on again. The surface is better, the colour is deeper, the grain is more convincing and the warranty ... Read more
The Correct Maintenance of Timber Decking
April 26, 2026Why Most Decks Fail Early (and How to Prevent It) Timber decking does not fail by accident. It fails through neglect, poor preparation, or the wrong products applied at the wrong time. That may sound blunt. However, it reflects what experienced contractors see repeatedly across the UK. Homeowners invest thousands in a deck, yet they ... Read more
When a Decking Job Goes Wrong: What Homeowners and Installers Should Do Next
April 16, 2026A decking dispute rarely begins with one dramatic failure. Do you need decking dispute advice? More often, it starts quietly. A homeowner notices movement underfoot. Rainwater sits where it should run away. Board gaps look inconsistent. Steps feel awkward. A balustrade moves more than it should. The installer insists the work is acceptable. The client ... Read more
How To Structure Your Decking Business: A 10-Point Plan For Long-Term Profit
April 15, 2026Running a decking business is not the same as being good at building decks. That may sound blunt. However, it is true. Many installers work hard, stay busy, and still feel under pressure. Usually, the weakness is not on site. More often, it sits behind the tools. Pricing lacks structure, overheads remain unclear, staffing becomes ... Read more