Per geotechnical report; auto-estimated from soil class if unknown
Passive earth pressure coefficient × soil unit weight
Moist in-situ unit weight; 100-130 pcf typical
Depth to seasonal high groundwater
🌊 Seismic, Frost & Code Parameters
ASCE 7-22 Chapter 11; per site-specific SDS/SD1
Short-period design spectral acceleration
ASCE 7-22 Fig. 7.2-1; 0 in FL, 15-30 in PA, 100+ in mountains
Local building code minimum; 0 in FL, 36 in PA, 60+ in northern states
Governing structural design code for jurisdiction
⚓ Foundation Engineering Analysis
Structural
Configure site conditions above to generate foundation analysis...
⚡ Live Project Summary
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☷ Bill of Materials
Procurement
Category
Item
Part # / SKU
Unit
Base Qty
Waste %
Final Qty
Notes
Layout-Driven Design: The visual builder is the source of truth. All totals, section counts, and BOM quantities derive from the sections placed on the canvas.
Section Structure: Every section contains exactly 2 module rows. An 8-panel section = 4 modules/row. A 10-panel section = 5 modules/row.
Post Count: 4 posts per section (2 per module row, at each end).
Beams: 2 per section (1 per module row).
Clamps: Mid clamps between adjacent modules in a row. End clamps at outer edges.
Splices: 2 per section — one splice per beam for field-joined segments.
Bonding: 1 clip per panel, 1 grounding lug per section.
Inverter: Sized by ratio of total DC to max DC input per unit.
Waste: Applied to structural categories (clamps, splices, wire, fasteners, brackets, bonding). Not to modules, inverters, or optimizers.