This unit is designed more for protecting against Fire and Water, rather than security for cash and valuables as it is only accredited a £1000 cash - £10,000 valuables rating. If your primary aim or concern is the protection for cash and valuables I would consider one of the higher security level ranges such as the £4,000 Cash Rated.

All the shelves and compartments are removable if required which would leave you with an empty space of 500 x 340 x 350mm (HxWxD).