Enter your wall and portrait dimensions (inches). The calculator will lay out even spacing so the outer margins equal the gaps between pictures, center the row vertically, and show nail-to-nail distances and the first nail's offset from the wall's left edge.
Nail spacing (center → center)—
First nail offset from left—
Nail height from top—
Gap (between frames & outer margins)—
Notes: Nails are assumed at the top-center of each portrait. The row is centered vertically on the wall. Outer margins equal inner gaps for a clean, even look.