Cheers thanks for that, it will save some time marking out
List of toys CZ .22, CZ .17 HMR Varminter, .44 Remington BP revolver, a .223 Remington s/s Verminator and various Muzzle loaders and shot guns (hope the wife never reads this ) a Grumpy Wolfhound and a jack Russel that has a pathological hatred of rats
Bought my plywood from B&Q and took the measurements with me and got them to cut the bits on their super duper lazer saw bench
Careful with that axe Eugene
I had problems finding the intumescent strip until I discovered you could buy intumescent door seals cheap on that auction site and cut the strip out of the plastic housing.