Wallmark: Gallery Wall Planner

Plan a gallery wall you can trust with real measurements, not a decorative room mock-up.

Wallmark turns the width and height of your wall, the exact outer dimensions of each frame, and the position of every hook into a measured layout and printable nail-position sheet.

Preview before drilling
Choose a wall photo from your device or work on the clean measured wall. The photo stays local and is used only as a visual preview. Every physical result comes from the measurements you enter.

Use standard frames or exact custom sizes
Start with familiar frame templates, rotate them in one tap, or enter the precise outer width and height. Record one centred hook or two side hooks, including the measured drop from the top and inset from each edge.

Arrange with confidence
Build a row, grid, column, or pinwheel. Set an exact gap, centre the group on a measured eye line, drag with snapping, or enter coordinates and nudge in 1, 5, 10, or 25 mm steps.

Finish with the hang guide
Wallmark calculates every nail or screw position from the left edge, right edge, floor, and ceiling. Export an A4 or US Letter PDF, print at actual size, and verify the calibration line before marking the wall.

Built for careful work
* Centimetres and inches
* Exact internal millimetre calculations
* One-hook and two-hook frames
* Equal spacing and measured alignment
* Local wall photos and plans
* No account or cloud upload
* No adverts on the printable Guide screen

The free app contains one small banner on general planning screens. A permanent Remove Ads purchase is available for GBP 2.99.