Thanks @sovietspybob, I've obtained three quotes; for non-insulated, just the roof insulated and roof and walls insulated. The difference in each is quite a lot due to the increase in materials, effectively skinning the inside of the building again. To go from non-insulated to fully insulated is about £6k of a difference, that buys a lot of 50mm Kingspan and OSB. I think I'll be opting for only the roof insulated (hardest part to diy) and insulate the walls myself like you.
Did you get the supplier to erect it for you? All the companies want around £5k to put it up which seems a lot for what is a kit of parts. I know there's a bit of fettling required with steel buildings and some working at height but I suppose those quys know what they're doing so they'll be less mistakes and it'll be built quicker.
Still considering reducing the height of the garage as it'll reduce costs but then again I could work on a larger car in the future. Plus extra height means I could build a simple mezzanine area for storage later.
Did you get the supplier to erect it for you? All the companies want around £5k to put it up which seems a lot for what is a kit of parts. I know there's a bit of fettling required with steel buildings and some working at height but I suppose those quys know what they're doing so they'll be less mistakes and it'll be built quicker.
Still considering reducing the height of the garage as it'll reduce costs but then again I could work on a larger car in the future. Plus extra height means I could build a simple mezzanine area for storage later.