What is the unit of measurement (UOM) for taking off sheathing?

The unit of measurement for taking off sheathing is the square foot because sheathing is typically applied over walls, roofs, or floors and is measured in terms of area. When estimating the quantity of sheathing required, it’s essential to calculate the surface area that will be covered. Since sheathing boards are usually either 4 feet by 8 feet or similar dimensions, the area can be easily calculated in square feet.

Though other units measure different aspects of construction materials and tasks, the square foot is specifically suited for surface area calculations, making it the correct choice for sheathing takeoffs. Using linear foot would apply more to materials such as lumber or piping, cubic foot pertains to volumetric measurements which are not applicable here, and square yard is more relevant in scenarios involving larger surface areas or different types of floor coverings.