1. Mortise Locks
Mortise locks are widely used in commercial settings due to their durability and high security. They involve a pocket (the mortise) being cut into the door where the lock is fitted. Mortise locks can come with various functions, such as deadlock, latchbolt, or a combination of both, and can be operated with a key or a thumb turn from one or both sides.

2. Cylindrical Lever Locks
Cylindrical lever locks are another popular choice for storefronts, particularly where ease of use is important. These locks are easier to install than mortise locks and are operated by a lever handle rather than a knob, making them more accessible, especially for individuals with disabilities. They can be keyed alike or differently, depending on the business's needs.

3. Deadbolts
Deadbolts provide additional security for storefronts and are often used in conjunction with other lock types. They are available in single and double cylinder options. Single cylinder deadbolts are operated with a key from the outside and a thumb turn from the inside, while double cylinder deadbolts require a key for both sides, offering extra security but potentially posing a safety risk in emergencies.

4. Electronic Locks
Electronic locks are becoming increasingly popular for commercial use due to their versatility and the added security features they offer. They can be programmed for multiple users, time-specific access, and can be operated using keypads, key fobs, or smart devices. Electronic locks eliminate the need for physical keys, making them ideal for businesses that require high levels of access control.

5. Push/Pull Paddle Handles
Push/pull paddle handles are commonly used in commercial settings, particularly in areas with high traffic. These locks are easy to operate, allowing doors to be opened by pushing or pulling the paddle, and can be locked or unlocked with a key. They are often used in combination with other locking mechanisms for added security.

6. Panic Bars (Exit Devices)
Panic bars, also known as exit devices, are installed on the inside of doors and allow for easy exit in case of emergencies. They can be paired with external keypads, levers, or knobs to control access from the outside while ensuring safe and quick egress from the inside.

7. Glass Door Locks
For businesses with glass doors, specialized locks are designed to secure these without affecting aesthetics. Glass door locks can be mechanical or electronic and are made to fit the unique construction of glass doors, providing security without the need for extensive modifications.