The building span is 36 feet wide and located in an area where the snow load is 30 pounds per square foot. What is the maximum span that a header of 2-2x10's can support, if the dead load includes a roof, ceiling, and 1 clear span floor?

The building span is 36 feet wide and located in an area where the snow load is 30 pounds per square foot. What is the maximum span that a header of 2-2x10's can support, if the dead load includes a roof, ceiling, and 1 clear span floor?

• A. 4 feet - 2 inches
• B. 6 feet
• C. 5 feet - 0 inches
• D. 3 feet - 6 inches

Answer: (A)

To determine the maximum span that a header made of two 2x10 boards can support, various factors must be considered, including the type of load (live and dead) and the materials used. The dead load in this scenario encompasses the roof, ceiling, and an additional clear span floor, while the snow load contributes to the live load. The maximum allowable span for a double 2x10 header is influenced by the total load per square foot imposed on it. Given the snow load of 30 pounds per square foot, along with the weight of the roof, ceiling, and flooring materials, it becomes evident that the total load may exceed the structural capacity of the header at larger spans. When structural engineers calculate allowable spans for beams and headers, they use standard tables that take into account materials, load types, and certain safety factors. For a double 2x10 header made of typical lumber, the calculation will show that beyond a specific span – which is determined based on the load it supports – the structural integrity may not meet safety standards. The choice of 4 feet - 2 inches as the maximum span aligns with common engineering practices and tables that indicate safe spans for headers under similar conditions. Such recommendations ensure that headers can adequately bear the

To determine the maximum span that a header made of two 2x10 boards can support, various factors must be considered, including the type of load (live and dead) and the materials used. The dead load in this scenario encompasses the roof, ceiling, and an additional clear span floor, while the snow load contributes to the live load.

The maximum allowable span for a double 2x10 header is influenced by the total load per square foot imposed on it. Given the snow load of 30 pounds per square foot, along with the weight of the roof, ceiling, and flooring materials, it becomes evident that the total load may exceed the structural capacity of the header at larger spans.

When structural engineers calculate allowable spans for beams and headers, they use standard tables that take into account materials, load types, and certain safety factors. For a double 2x10 header made of typical lumber, the calculation will show that beyond a specific span – which is determined based on the load it supports – the structural integrity may not meet safety standards.

The choice of 4 feet - 2 inches as the maximum span aligns with common engineering practices and tables that indicate safe spans for headers under similar conditions. Such recommendations ensure that headers can adequately bear the