Art & Gallery Hanging Calculator

Calculate exact spacing gaps and nail heights for perfect walls.

Exact Gap Between Frames 20.0 cm

Picture Wire
Sawtooth
D-Rings
French Cleat
Keyhole Slot
Hammer Nail Exactly Here (From Floor) 165.0 cm

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Measurement Key

Calculator Inputs & Technical Terms

A step-by-step visual reference to taking accurate measurements for gallery walls, frame gaps, and hardware drops.

Tab 1: Gallery Wall Spacing Inputs

Total Wall / Sofa Width

The total horizontal boundary constraint of your installation area. When hanging above furniture, enter the width of your sofa, credenza, or headboard. When hanging on an open wall, enter the full wall length or target focal section.

Artwork Width (Per Piece)

The full exterior horizontal width of each individual piece, measuring from outer frame edge to outer frame edge. Do not measure the canvas opening, glass, or mat window.

Exact Gap (Calculated)

The resulting horizontal breathing room between adjacent frames. This measurement is engineered to match the outer left and right margins for complete visual symmetry across your wall.

Tab 2: Nail Height & Hardware Inputs

Artwork Height

The full exterior vertical height from the top edge to the bottom edge of the outer frame or carved mask.

Target Eye-Level

The standard museum baseline is 145 cm (57 inches), aligning the artwork’s vertical center with average human sightlines. Over sofas, set this so the frame bottom clears the sofa back by 20–25 cm.

Top Frame Edge Slack wire (Never measure this) TAUT DROP
Most Frequent Question

Taut Wire Drop Distance

The vertical measurement from the top outer frame edge down to the apex (peak) of the hanging wire when pulled completely tight.

  • How to measure: Hook a finger or tape measure under the center of the wire and pull firmly upward toward the top frame edge until all slack is eliminated.
  • The Trap: Never measure wire hanging loose or resting flat against the backing board. Picture wire stretches upward into a triangle under the artwork's weight; measuring it slack causes the piece to hang significantly lower than intended.
Sawtooth Drop
Distance to Center Groove Measure vertically from the top edge of the frame down to the bottom serrated notch where the nail head rests. Sawtooth hangers sit flush against the wall and do not require picture hook offsets.
D-Ring Spread
Distance Between Both Loops Measure the horizontal distance between the center of the left D-ring and the center of the right D-ring. This ensures your two wall anchors are spaced correctly and kept level.
Cleat & Keyhole Drop
Distance to Bearing Contact Surface For French cleats, measure from the frame top down to the bottom resting lip of the wooden/aluminum cleat bar. For keyhole slots, measure down to the top seat of the narrow neck where the screw head lodges.
Hook Saddle Offset
The Standard +2 cm (0.75 in) Bracket Offset Angled brass picture hooks seat the wire roughly 2 cm lower than where the nail pierces the drywall. Checking this option in the calculator automatically raises the nail target so your frame settles at the exact calculated height.