Online merchant launches its biggest-ever website

Online builders’ merchant,, has unveiled its new online portal


In 2018, £38m-plus revenue, previously known as Construction Materials Online (CMO), launched Door Superstore alongside its existing, and websites.

The new website brings together all 75,000 products from 350 suppliers provided by the specialist websites operated by It aims to bring to the trade builder the experience of a consumer online retailer and offers trade credit and bulk discounts for companies.


“We’re disrupting a market that historically had seen few of the benefits that technology and e-commerce can bring, and to offer the largest range of building products available anywhere online is a great way to launch the new site,” said CEO Andy Dunkley.


“Every independent builder, whether you are two men and a van, or a multi-million turnover operation with multiple sites, wants to save time and keep projects on or ahead of schedule and budget, and we have been working to build a business that makes that easier.”


Over the last 10 years, the Plymouth-based online merchant has seen huge growth, tripling its revenue in just three years as it has added more specialist websites to its portfolio and expanded its warehousing and logistics capabilities following private equity investment by Key Capital Partners (KCP) which specialises in scaling online businesses.


The business aims to take market share from traditional builders’ merchants that have made relatively little investment in their online presence and service models, and the company has made significant progress towards this goal since the investment in 2017.

Trade website 12r
Rob Martin (left), trade manager at, with CEO Andy Dunkley Picture by Paul Slater/PSI

About Fiona Russell-Horne

Group Managing Editor across the BMJ portfolio.

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