A pane refers to a flat sheet of glass used in windows, doors, and other structures . This definition is relevant to the construction industry, where glass panes are a common material used in building design and construction.

In the context of Australian commercial construction projects, the term "panel" can refer to several different components or concepts, depending on the specific context in which it is used.

A parapet is a barrier or low wall that extends above the edge of a roof, balcony, walkway, or other structure . It is designed to provide a safety barrier to prevent falls from heights and to protect the building and its occupants from wind, rain, and other environmental elements.

Particle board is a type of engineered wood product made from wood chips, sawmill shavings, or even sawdust, which are bonded together with a synthetic resin or other suitable binder and pressed into sheets. It is commonly used for a variety of applications due to its affordability and versatility.

In the context of Australian commercial construction projects, a "partition" refers to a non-load-bearing wall or divider used to separate spaces within a building.

A "party wall" refers to a wall that is shared by two adjoining properties. This type of wall is typically constructed on the boundary line between two separate properties and serves as a structural support for both buildings. Party walls are common in urban areas where buildings are constructed closely together, such as in commercial districts or densely populated areas.

A "pediment" refers to an architectural element that is typically found above the entrance of a building or as a decorative feature on the facade. It is a triangular or arched section that sits atop a horizontal structure, such as a portico or a series of columns. Pediments are often used to add a classical or formal aesthetic to a building's design.

A pergola is a structure that provides shade and shelter, typically consisting of a framework of vertical posts or columns supporting horizontal beams or rafters. It is often used to create an outdoor living space or to enhance the aesthetic appeal of a building's exterior. Pergolas can be made from various materials, including wood, metal, or composite materials, and can be designed in different styles to complement the architectural design of the building.

In the context of Australian commercial construction projects, "perpends" refer to the vertical joints between bricks or blocks in masonry work. These joints are typically filled with mortar and are crucial for the structural integrity and aesthetic appearance of a wall. Proper alignment and filling of perpends are essential to ensure the stability and weatherproofing of the masonry structure. In construction specifications, attention to perpends is important to maintain consistent spacing and alignment, contributing to the overall quality and durability of the building.

A "pier" typically refers to a vertical structural element that is used to support loads and transfer them to the foundation. Piers are often used in situations where the soil near the surface is not capable of supporting the structure's load, so the load is transferred to deeper, more stable soil or rock layers.

A pilot hole is a small, preliminary hole drilled into a material to guide a larger drill bit or to facilitate the insertion of fasteners such as screws or bolts. The purpose of a pilot hole is to ensure accuracy and precision in drilling, to prevent the material from splitting or cracking, and to make the insertion of fasteners easier and more secure.  

The term "pitch" refers to the angle or slope of a roof or other inclined surface. It is typically expressed as a ratio of the rise (vertical height) to the run (horizontal distance) of the roof. For example, a pitch of 1:4 means that the roof rises one unit for every four units of horizontal distance.

A "plank" typically refers to a long, flat piece of timber, metal, or engineered material used in various construction applications. Planks are typically made from sturdy materials, such as Laminated Veneer Lumber (LVL) or aluminium , to provide a stable and secure working platform for workers and materials.

Plaster is a versatile and commonly used material for interior wall and ceiling finishes. It is a mixture of gypsum, water, and other additives that harden to form a smooth and durable surface. Plaster is available in various forms, including traditional plaster, plasterboard, and specialized plaster products.

Plaster is valued for its ability to provide a smooth and uniform finish, which is essential for creating a professional and aesthetically pleasing appearance in commercial buildings. It is also fire-resistant, easy to clean, and can be painted or wallpapered to match the desired interior design.

Plasterboard, also known as drywall or gyprock, is a panel made of calcium sulfate dihydrate used in the construction of interior walls and ceilings . In the context of commercial construction projects in Australia, plasterboard is a widely used material for building interior linings.