Seismic/Wind Foundation Estimator

Our seismic and wind foundation calculator helps estimate anchoring requirements for sheds, workshops, and small outbuildings. Proper anchoring prevents structures from shifting during high winds or seismic events, protecting both the building and its contents from damage.

The calculator considers your building dimensions, local wind speeds, and seismic zone to determine the governing lateral force. It then calculates the number of anchors needed and suggests minimum footing sizes based on typical soil bearing capacity. Wind is usually the controlling factor in most areas.

This tool is essential for anyone building a shed, workshop, or outbuilding and asking "how do I anchor my shed?" or "what size footings for my outbuilding?" While this provides planning estimates, always verify requirements with local building codes and consult an engineer for larger or critical structures.