A 6 inch beam depth can have an allowable cantilever span of what value according to the rule of 24 inches per 1 inch depth?

A 6 inch beam depth can have an allowable cantilever span of what value according to the rule of 24 inches per 1 inch depth?

• A. 12 ft
• B. 18 ft
• C. 24 ft
• D. 30 ft

Answer: (A)

The main idea is a quick rule: for each inch of beam depth, you can cantilever 24 inches. For a six-inch beam, multiply 24 inches by 6, giving 144 inches, which is 12 feet. So the allowable cantilever span is twelve feet. This rule is a handy estimate showing deeper beams can cantilever farther, though real design would check loads and code requirements.

The main idea is a quick rule: for each inch of beam depth, you can cantilever 24 inches. For a six-inch beam, multiply 24 inches by 6, giving 144 inches, which is 12 feet. So the allowable cantilever span is twelve feet. This rule is a handy estimate showing deeper beams can cantilever farther, though real design would check loads and code requirements.