Asda is to test a new convenience store format and launch B&Q shop-in-shops inside four of its largest superstores.The Walmart-owned business has tied up with DIY giant B&Q as it seeks to make better use of space in its largest sheds.The first two B&Q shop-in-shops will open in Dagenham and Sheffield later this year and will be operated by B&Q staff.The locations, measuring 2,000 sq ft to 3,000 sq ft, will sell a limited selection of paint, tools, hardware and other DIY essentials. B&Q’s full product range will be available for customers to order for home delivery or click and collect.Chris Bargate, director of business development at B&Q, said: “We believe in testing small formats and are committed to trialling new initiatives. We’re delighted to be trialling with Asda to test a more convenient way for customers to access our range of home improvement products and services.“Our customers are continuing to adapt and change to new ways of living and shopping and this is just one way in which we’re responding by getting closer to customers and making it easier for them to improve their homes.“The trial B&Q concession stores at Asda will have a great selection of DIY essential items, expert help and advice from our colleagues, as well as digital access to our broader range of products.“We’re excited by the potential of this new model and are looking forward to seeing how customers respond.”