Wall layout
Turn a wide wall into reachable sections.
A visible grid gives you a simple route across a large wall so you can focus on the section in front of you without losing the overall composition.
Free drawing reference tool
Grid Maker
Grid Maker is a free browser tool for adding a clear, adjustable grid to a reference image for drawing on paper, canvas, or a larger surface.
Reference preview
No image selected
Add a reference image
Choose a JPEG, PNG, or WebP from your device, or try the built-in portrait.
Mural grid calculator
Scale a reference drawing onto a wall
Prepare a practical wall grid before you paint a mural. Set the wall size, see the physical cell dimensions, and carry the reference across one manageable section at a time.
Step by step
How to use a mural grid calculator
A mural grid makes a large surface easier to navigate by giving every mark a shared row and column address.
- 01
Load the reference
Choose a readable JPEG, PNG, or WebP. Your image is prepared in the browser and is not sent to a server.
- 02
Set the wall target
Enable real-size mode and start with the 3 × 2 m mural preset, or enter the measured width and height of the wall.
- 03
Mark the wall by coordinates
Use the calculated cell width and height to lay out the wall, then transfer major shapes before adding color and detail.
Where it helps
Built for large surfaces and clear decisions
Mural planning needs more than an overlay. It needs a frame, a scale, and a way to keep the drawing readable as you move around the wall.
Signage and lettering
Place a wordmark before paint makes it permanent.
Use row and column intersections to check the position of lettering, icons, and strong horizontal or vertical edges.
Proportional scaling
Keep the source drawing recognizable.
Grid Maker fits the whole reference uniformly inside the wall frame. Any ratio mismatch remains visible instead of becoming a hidden distortion.
Inspectable plan
Example: an 8 × 8 plan for a 3 × 2 m wall
With the mural preset selected, eight columns make 0.375 m cells across the wall and eight rows make 0.25 m cells high. That gives each wall mark a physical starting point.
- Target
- 3 × 2 m wall
- Grid
- 8 columns × 8 rows
- Each cell
- 0.375 × 0.25 m
Browser-local by design
The reference remains on your device while you prepare the mural plan. There is no account, cloud image storage, or image upload endpoint in this free tool.
Questions, answered
Mural grid calculator FAQ
Is the 3 × 2 m wall size fixed?
No. It is the default mural example. Enter the measured wall width and height in meters, centimeters, inches, or feet for your project.
What happens if my reference has a different ratio than the wall?
The complete reference is scaled uniformly and centered in the target frame. Unused bands remain visible, so the mural is never silently stretched.
How large should mural grid cells be?
Choose a row and column count that keeps each section reachable and detailed enough for the marks you need to transfer. Grid Maker shows the resulting physical width and height for every cell.
Can I use the mural grid without signing up?
Yes. The editor is free and accountless. Select an image, set the target, and download or print the project sheet from the browser.