9 sq ft 3ft high locker 10 sq ft Telephone box size 15 sq ft Double wardrobe size 20 sq ft Large walk in wardrobe size 25 sq ft Small garden shed size 30 sq ft Garden shed size 40 sq ft Large garden shed size 50 sq ft Transit van size 75 sq ft Luton van size 100 sq ft Standard single garage size 125 sq ft Large single garage or 7 tonne lorry 150 sq ft One and half garages or 2 luton van loads 175 sq ft 7.5 tonne lorry size 200 sq ft Standard double garage size 225 sq ft Standard double garage size 250 sq ft Large double garage size 275 sq ft Large double garage size 300 sq ft 3 single garages or a 40ft container 350 sq ft 3.5 single garages 400 sq ft 2 double garages 450 sq ft 2 double garages 500 sq ft 2 shipping containers 550 sq ft 2 shipping containers 600 sq ft 650 sq ft 700 sq ft 750 sq ft 800 sq ft 1000 sq ft