the term "stud" typically refers to the vertical framing members used in wall and partition systems. These studs are made of wood, metal, or engineered wood products and serve as the structural support for the walls.

a suspended ceiling, also known as a drop ceiling or false ceiling, is a secondary ceiling that is hung below the main structural ceiling. It is commonly used in commercial buildings for various functional and aesthetic purposes.

a suspended concrete slab refers to a horizontal structural element that is elevated above the ground or another floor level. Unlike ground slabs, which are directly supported by the earth, suspended slabs are supported by beams, columns, or walls. They are commonly used in multi-story buildings, parking structures, and other commercial edifices where floors need to be elevated.

"to tamp" generally refers to the process of compacting or packing down materials to ensure stability and support. This is commonly done with soil, gravel, or other base materials to create a solid foundation for construction. Tamping is essential for preventing settling and ensuring the structural integrity of the building. It can be performed manually with a hand tamper or mechanically with equipment like a plate compactor or a roller, depending on the scale and requirements of the project.

a "threshold" in the context of a door typically refers to the horizontal component at the bottom of a doorway.

a "tiler" is a skilled tradesperson responsible for laying tiles on floors, walls, and other surfaces. Their work involves preparing surfaces, cutting tiles to fit specific spaces, and applying adhesives and grout to secure the tiles in place. Tilers work with a variety of materials, including ceramic, porcelain, stone, and glass tiles, and they must ensure that the tiles are installed evenly and with precision to achieve a high-quality finish. Their role is crucial in both the aesthetic and functional aspects of construction projects, contributing to the durability and appearance of surfaces in commercial buildings.

"timber" refers to wood that has been processed into beams and planks, a stage in the process of wood production. Timber is used for structural purposes in construction, such as framing, flooring, and roofing, as well as for aesthetic applications like cladding and interior finishes.  

"tooled joints" refer to specific types of joints in concrete work that are created using a tool to shape and finish the joint. These joints are typically used in concrete slabs, pavements, and other flatwork to control cracking and to allow for slight movements due to temperature changes, shrinkage, or other factors.

a "transom" refers to a horizontal structural element or beam that is typically found above a door or window. It serves both functional and aesthetic purposes. Functionally, a transom can provide additional support to the structure above the opening, distribute loads, and enhance the stability of the wall. Aesthetically, transoms can be used to allow additional light into a space or to create a visual separation between different sections of a building.

a "trench" typically refers to a narrow excavation in the ground that is deeper than it is wide. Trenches are commonly used for installing underground utilities such as water pipes, electrical conduits, gas lines, and telecommunications cables. They can also be used for drainage systems or foundations.

a "trestle" typically refers to a temporary or permanent framework used to support structures during construction. Trestles are often employed to support platforms, scaffolding, or bridges, providing stability and access to elevated areas. They can be made from various materials, including wood, steel, or aluminum, and are designed to bear significant loads.

a "trimmer" typically refers to a structural component used to support openings or edges in a building framework. Specifically, trimmers are often used around openings for doors, windows, or staircases. They are horizontal or vertical members that provide additional support and stability to the structure by distributing loads around these openings.

See "Heartwood"

a "truss" refers to a structural framework designed to support roofs, bridges, or other structures. It is composed of interconnected elements, typically arranged in triangular units, which provide stability and distribute loads efficiently. Trusses are commonly made from materials such as timber, steel, or a combination of both, and are engineered to span large distances without the need for intermediate supports. They are favored in construction for their strength, versatility, and ability to cover wide spaces economically. In commercial projects, trusses are often used in the construction of large roofs, auditoriums, warehouses, and industrial buildings.

Roof composed of roof trusses. See "truss" definition