The Schill GT 380 large cable drum with door from SoundTools is the best way to store your long run cables. Built from rugged materials and equipped with a door with double hing and single latch.
464 meters of cable measuring 5mm in diamter.
239 meters of cable measuring 7mm in diameter.
Drum measures 14.96" wide, 19.33" tall, 11.46 deep.