Garage door
A double garage door is wide, easy to see, and usually on the same wall as the front eaves.
Interactive planning tool Beta
Measure your roofline from a photo.
Set one real-world reference, trace the eaves you want to light, and get an instant roofline length estimate.
- 01Add a clear photoLandscape and straight-on works best.
- 02Set one known distanceA garage door width is a useful reference.
- 03Trace every eaveTap each corner and start a new run when needed.
- 04Review the estimateSee the total and each individual run.
Step 1 — Add your house
Start with a clear daytime photo.
Stand near the middle of the house, keep the camera level, and fit every roofline you want to measure in the frame.
- Photograph the house as straight-on as possible.
- Use landscape orientation for more tracing room.
- Include an object whose real width you know.
Your photo stays in this browser and is not uploaded to our servers.
Roofline estimator
Calibrate, then trace your eaves.
Enter the actual distanceThen tap its two endpoints on the photo.
Set your scaleTap the two ends of the known distance.
Tap two points to mark your known distance.
A better reference makes a better result
Choose something wide, visible, and close to the eaves.
Window or entry door
Use the outside frame width and measure it before taking the photo.
Objects far in front
Vehicles, fences, and objects on another wall plane can distort the scale.