Updated 19 September 2026 · Planning guidance with linked calculators
Gallery Wall Planner checkpoint
Four 400 × 500 mm frames are planned in one row with 80 mm gaps. The outside frame dimensions—not the artwork size—are used to calculate the finished group footprint.
Inputs used
| Number of frames | 4 |
|---|---|
| Columns | 4 |
| Average frame width | 0.4 m |
| Average frame height | 0.5 m |
| Gap | 0.08 m |
Calculator result
- Rows
- 1 rows
- Gallery width
- 1.84 m
- Gallery height
- 0.50 m
- Layout note
- Use 4 columns across 1 rows
Decision from this checkpoint
Mark the calculated group on the wall with paper templates and measure each frame’s real hook position before drilling.
- Hardware offsets can differ between same-size frames.
- Furniture below the gallery may define the useful visual width better than the full wall.
Tools referenced in this project
Define the display area, not just the wall size
Measure the wall, then mark the part that is visually available after accounting for furniture, switches, sconces, doors, and architectural features. A gallery above a sofa or console is usually judged against that anchor rather than the full wall width. Keep the anchor dimensions with the wall measurements.
Choose an outer boundary for the composition
Use the art and gallery tools to compare the overall width and height of the group. Decide whether the composition should read as a neat rectangle, a central cluster, or an intentionally irregular arrangement. The outer boundary helps prevent the collection from spreading wider or higher as more frames are added.
Test frame spacing at full scale
Frame spacing that looks small on a screen can feel wide on the wall. Cut paper templates for each frame or mark the outer dimensions with removable tape. Keep the real frame moulding width in mind because the visible art size may be much smaller than the external frame size used for hanging.
Locate hanging points from the frame hardware
The nail or hook position depends on the actual hanging hardware, wire tension, and frame construction. Measure from the top or side of each frame to its hanging point and transfer that measurement to the wall plan. Do not assume that two same-size frames use the same hardware position.
Photograph and record the approved layout
Once the paper layout is approved, photograph it with a tape measure or reference dimension visible. Record the key centre lines and spacing before removing the templates. This gives you a simple way to recreate the arrangement or check a shifted frame later without starting the layout process again.
Reference for units
This reference supports unit notation and conversions; it does not validate product coverage, installation allowances, or this particular room.