Hasp Lock (also known as a "latch lock")

Pros

• The cheapest of the different lock options (excluding the cost of the required padlocks)
• Users do not have to have £1 coin on them to use the locker
• Users can use combination padlocks so keys do not have to be carried - ideal for children going to play sport without needing somewhere to keep their keys

Cons

• Lockers can be kept out of action by users putting their own padlocks on the lockers to keep as "their" personal locker - and bolt cutters are therefore required to reclaim the locker by the site owner
• No incentive for users to return the locker to use
• Users have to provide their own padlocks or padlocks have to be made available / sold by the site owner

Ideal Uses

Hasp locks are very popular for school sites without dual / community use, especially when used in conjunction with combination padlocks. The main benefits are that keys do not have to be carried by pupils participating in sport and pupils do not have to be relied upon to carry £1 coins with them (or the PE teacher does not have to keep a supply of £1 coins to lend to forgetful pupils). The school often provides a combination to each pupil with a deposit paid for its safe return at the end of the school year.

In non-school situations such as health clubs, the sale or rental of combination padlocks to members or guests can provide an additional source of income to the site owner.

Cam Lock

Pros

• A cheap and simple locking solution
• Users free to access lockers without having to remember a coin or their own padlock

Cons

• No access restrictions or incentives to return keys - unscrupulous users could keep their "own" locker and not return the key
• Malicious users could lock all the locks and remove the keys from site (master keys do allow access but new keys would need to be purchased)

Ideal Uses

Cam locks are very popular in trusted environments such as schools or members clubs where the risk of malicious or unscrupulous use is low. Often in schools a member of staff controls access to the keys to control usage.

Coin / Token Return Lock

Pros

• Easily understood by users. This is by far the most popular lock choice
• Users incentivised to return their keys to recover their £1
• Any misuse (e.g. key retained overnight) can be "punished" by retention of the £1

Cons

• Users are required to have a (£1 coin) or a token ("€1 coin") on them to use the lockers (which is sometimes considered to be an issue on a school site)
• Users have to carry a key (potentially a problem if going outside to play football or rugby - a problem resolved by hasp locks)

Ideal Uses

The universal solution. Often chosen as the ideal compromise between different lock types when faced with different user groups. This is normally therefore used in schools which also have dual use facilities, and is the lock type most expected to be encountered by users.

Coin / Token Retain Lock

Pros

• Benefits of coin return locks but with the added benefit of revenue generation

Cons

• Potentially seen as unfair - for example users returning to collect a towel or to collect a forgotten item would lose their first £1 and have to pay twice.
• Locks are the most expensive option
• Member of staff has to empty the lockers periodically (and before any locker's coin retain box becomes full)

Ideal Uses

In sports centres or leisure centres that need the benefits of a coin lock that also intend to generate revenue from locker provision. Particularly suited to a high volume usage site.