When establishing site layout for a building foundation, batter boards should be placed at what distance from the actual building corners?
Correct Answer
A) 4-6 feet
Batter boards should be placed 4-6 feet away from building corners to allow adequate working space for excavation equipment while maintaining accuracy for layout strings. This distance prevents damage to the layout during construction activities.
Why This Is the Correct Answer
Batter boards placed 4-6 feet from building corners provide the optimal balance between accuracy and practicality. This distance allows sufficient clearance for excavation equipment to operate without damaging the layout strings or batter boards. It also provides adequate working space for construction crews while maintaining precise measurements for foundation layout. The distance is close enough to ensure accurate string lines but far enough to avoid interference with construction activities.
Why the Other Options Are Wrong
Option B: 8-10 feet
8-10 feet is unnecessarily far from the building corners, which can reduce the accuracy of layout strings and make it more difficult to maintain precise measurements over longer distances.
Option D: 2-3 feet
2-3 feet is too close to the building corners and would likely result in damage to the batter boards during excavation work, as heavy equipment needs more clearance space.
Memory Technique
Remember 'BATTER at FOUR to SIX' - Batter boards at 4-6 feet, or think of a standard parking space width (about 9 feet) and take roughly half that distance.
Reference Hint
Florida Building Code, Chapter 18 - Soils and Foundations, or construction surveying sections in general contracting reference materials
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