Solar Panel Row Spacing Calculator
Estimate minimum solar-row pitch, clear gap between rows, total array depth, modules per row and module cost from panel dimensions, tilt and design sun elevation.
Default project preview
13.33 ft
Panel vertical rise
2.87 ft
Horizontal panel projection
6.16 ft
Shadow-clearance component
6.16 ft
Total array depth
46.14 ft
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Panel rise = panel length × sin(tilt). Shadow-clear gap = rise ÷ tan(design sun elevation). Row pitch adds panel projection and service clearance; total array depth repeats that geometry across rows.
FAQ
Solar Panel Row Spacing Calculator questions
What design sun elevation should be used?+
Choose a project-specific seasonal design condition based on site latitude, orientation and acceptable shading rather than relying on a universal value.
Does this account for terrain slope?+
No. Sloped or uneven sites change relative row elevation and shadow geometry.
Why add service clearance?+
A geometric no-shadow gap may still be too narrow for access, drainage, vegetation control or equipment maintenance.