What is the maximum span for a No. 2 Southern Pine, 2 x 10 wood floor joist in a kitchen with a dead load of 20 psf, spaced 19.2" on center?

What is the maximum span for a No. 2 Southern Pine, 2 x 10 wood floor joist in a kitchen with a dead load of 20 psf, spaced 19.2" on center?

• A. 11'8"
• B. 10'10"
• C. 12'10"
• D. 12'6"

Answer: (A)

The scenario involves determining the maximum allowable span for a No. 2 Southern Pine 2 x 10 wood floor joist under specific loading conditions. For a dead load of 20 pounds per square foot and joists spaced at 19.2 inches on center, it is crucial to reference acceptable span tables that relate to the capabilities of the material being used. When assessing the span for floor joists, the lumber grade and dimensions, as well as the applied load, are key factors. No. 2 Southern Pine is commonly used in construction due to its adequate strength and availability. Based on standard span tables for this material, a No. 2 2 x 10 joist, under a dead load condition of 20 psf and spaced 19.2 inches on center, can safely span up to approximately 11 feet and 8 inches. This span ensures that the joists will provide structural integrity without excessive deflection or failure under the specified load. Thus, considering these parameters and typical construction practices, the maximum span of 11'8" is appropriate and aligns with building standards, making it the correct choice for this scenario.

The scenario involves determining the maximum allowable span for a No. 2 Southern Pine 2 x 10 wood floor joist under specific loading conditions. For a dead load of 20 pounds per square foot and joists spaced at 19.2 inches on center, it is crucial to reference acceptable span tables that relate to the capabilities of the material being used.

When assessing the span for floor joists, the lumber grade and dimensions, as well as the applied load, are key factors. No. 2 Southern Pine is commonly used in construction due to its adequate strength and availability. Based on standard span tables for this material, a No. 2 2 x 10 joist, under a dead load condition of 20 psf and spaced 19.2 inches on center, can safely span up to approximately 11 feet and 8 inches. This span ensures that the joists will provide structural integrity without excessive deflection or failure under the specified load.

Thus, considering these parameters and typical construction practices, the maximum span of 11'8" is appropriate and aligns with building standards, making it the correct choice for this scenario.