The rib design of the internal walls of the spa/pebbledash L & M Concrete garages does readily facilitate the addition of a plasterboard lining; you may even consider insulated plasterboard. The plasterboard is attached using an adhesive designed to bond concrete and wood together. This adhesive can be purchased from many DIY stores or timber merchants.

Or another alternative as this picture shows the panels have been battened.

Everything went as promised, I'm a person to keep promises and enjoyed Liam's company

- Shirley Smith