Berth is the term used in ports and harbours to define a specific location where a vessel may be berthed, usually for the purposes of loading and unloading.
Most berths will be alongside a quay or a jetty (large ports) or pontoons (small harbours and marinas). Berths are either general or specific to the types of vessel that use them. The size of the berths varies from 5-10m for a small boat in a marina to over 400m for the largest tankers.
The following is a list of berth types that you may find in a large port.
General Berth - used to handle smaller shipments of general cargo. Vessels using these would usually have their own lifting gear, but some ports will provide mobile cranes to do this.
Container Berth - used to handle 20' and 40' standard containers. Vessels are loaded and unloaded by container cranes, designed specifically for the task. Alongside the quay there is often a large flat area used to store both the imported and exported containers.
Bulk Berth - used to handle bulk cargo. Vessels are loaded using either excavators and conveyor belts or pipelines. Storage facilities for the bulk cargo are often alongside the berth - e.g. silos or stockpiles.
Product Berth - used to handle oil and gas related products, usually in liquid form. Vessels are loaded via loading arms containing the pipe lines. Storage facilities for the products are usually some distance away from the berth and connected by several pipes to ensure fast loading.
Marina Berth - used to allow the owners of leisure craft on and off their boats. Generally alongside pontoons and accessed by hinged bridges (in tidal locations) to the shore.
While beds on large ships are little different from those on shore, the lack of space on smaller yachts means that bunks must be fitted in wherever possible. Some of these berths have specific names: Quarter berth : A single bunk tucked under the cockpit. Usually found in smaller boats where there is not room for a cabin in this location. Typically, the head and chest will be in the main saloon, with the remainder of the body extending into a "pipe" leading aft. Preferred by some skippers as they can be close to the cockpit while off-watch; there's also no possibility of falling out of bed. Settee berth : The archetypal layout for a small yacht has seats running down both sides of the cabin, with a table in the middle. At night, these seats can usually be used as beds. Because the ideal ergonomic distance between a seat-back and its front edge (back of the knee) makes for a rather narrow bed, good settee berths will have a system for moving the back of the settee out of the way; this can reveal a surprisingly wide bunk, often running right out to the hull side underneath the lockers. If they are to be used at sea, settee berths must have lee-cloths to prevent the user falling out of bed.
Unless the structure of the boat renders them unnecessary (quarter berths, pilot berths with partitions), bunks on a yacht must have lee-cloths to prevent the sleeper falling out due to the motion of the vessel. These are sheets of canvas attached to the open side of the bunk (very few are open all round) and usually tucked under the mattress during the day or when sleeping in harbour. Lengths of rope are attached to the upper corners of the lee-cloth, and fittings are provided above the bunk to which these lines can be tied, holding the cloth in place as a kind of wall across the open side of the bunk.
Lee cloths have some secondary uses:
Long-distance trains running at night sometimes have beds in them, often in sleeping compartments, and the beds are known as sleeping berths, or just berths. In the case of compartments with two berths, one is on top of the other in a double-bunk arrangement. These beds (the lower bed in a double-bunk arrangement) are usually designed in conjunction with seats which occupy the same space, and each can be folded away when the other is in use.