The CA-18 answers a budgeting question that every practice opening or refitting faces: how many frames can go on show for a given spend. Optical practices building a large frame wall, sunglass retailers with deep ranges and groups costing a fit-out across several sites can all treat the rod as a known cost per position. A long column concentrates capacity on two fixings, and the face-on arms mean each position is a selling position.
The lock belongs in the same calculation. UK retailers lost £2.2bn to customer theft in the year covered by the British Retail Consortium's 2025 crime survey and spent a further £1.8bn on prevention, so a one-off mechanical lock is a modest entry on that ledger. Lost sales belong on the other side. In Numerator's 2024 survey of more than 5,000 US shoppers, 27% said locked products would make them switch retailer or give up. A realistic costing sets expected theft savings against the sales a slow key might lose.
Installation has costs that do not appear on a price list. A long rod needs a sound wall and correct fixings, which UK employers answer for under the Health and Safety at Work etc. Act 1974, and it needs ceiling height. Mounting should keep lower arms within the reach guidance of BS 8300-2, in line with the Equality Act 2010. Groups and landlords usually approve fixtures through a costed fit-out specification or tender. The conformity documentation those procurement routes require is issued by the manufacturer and shared by the enquiry team.