Who's modular units did you use in the end Rob?
thanks for that.NewAge, an American company. They used to be sold in the UK in Argos and Costco, but seem a bit more difficult to find these days.
NewAge Products garage cabinets let you organize gear, tools and supplies with modular pieces engineered to fit together perfectly. Get exactly the storage you need with premium garage cabinets, shelving, slatwall, lighting and a full line of accessories.newageproducts.com
Garage Pride & Sealey seem to have cloned versions readily available.
Carefully selected garage storage cabinets, workbenches and wall storage systems. Organise and take a pride in your residential garage. Friendly help and advice with a 5 star service.www.garagepride.co.uk
Just a word of note. When you see them advertised, the thickness of the steel decreses as the 'gauge' increses. So 24 gauge steel is thinner then 18 gauge.