At Knox Safe Custody, our Size B Safe Deposit Box offers a refined balance of space and discretion — ideal for clients who require slightly more room for documents, jewellery, and compact valuables. Stored within our climate-controlled, specialist vault in Houghton, Johannesburg, every Size B box includes complimentary R2 million insurance underwritten by Lloyd’s of London, with the option to increase cover for higher-value collections.

This box is well-suited for items such as:

• Multiple A4-sized documents, folders, bound agreements, slim books
• Jewellery collections
• Small gold and silver bullion bars
• Personal archives, passports, and sensitive business files
• Digital storage devices, hard drives, or encrypted backups

Size B is an excellent choice for clients who want additional capacity without stepping into a large box category — giving you insured, private custody supported by Knox’s quiet professionalism, controlled access, and long-established approach to secure preservation.