Active job

Garage Loft Plywood

Hello, Need someone to ply our garage loft space. There is currently some ply up there along with some loose boards that previous owners added over the years but would like to make it look nice and tidy as I operate a gym from my garage. Garage size is 7.65m x 6.25m so approx 48m2 overall. Depending on cost might decide to only ply a certain amount. Would likely need to add some additional joi --- but not 100% sure how much would be required - would probably be best to come around and have a look? Also, would like to add some ply to the walls for mounting a TV and various other equipment. Likely approx. 10 - 15m2 onto blockwork wall so would need battens etc. to suit.