I would say it counts as a hardware store as it sells DIY goods. It also sells pet stuff and cleaning products/toiletries. There is a long list of stores that can stay open.
Supermarkets and other food shops
• Medical services (such as dental surgeries, opticians and audiology clinics, physiotherapy clinics, chirpody and podiatry clinics, and other professional vocational medical services)
• Pharmacies and chemists, including non-dispensing pharmacies
• Petrol stations
• Bicycle shops
• Hardware shops and equipment, plant and tool hire
• Veterinary surgeries and pet shops
• Agricultural supplies shops
• Corner shops and newsagents
• Off-licences and licenced shops selling alcohol, including those within breweries
• Laundrettes and dry cleaners
• Post offices
• Vehicle rental services
• Car garages and MOT services
• Car parks
• High street banks, building societies, short-term loan providers, credit unions and cash points
• Storage and distribution facilities, including delivery drop off points where they are on the premises of any of the above businesses
• Public toilets
• Shopping centres may stay open but only units of the types listed above may trade