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Free measurement tool
Bay Window Curtain Track Calculator
Enter the width of every straight bay section and any track required beyond the sides. The calculator gives you the total track run and a clear section breakdown.
Step 1
Choose the bay layout
Select the number of straight sections that follow the bay.
Step 2
Enter each section width
Measure along the proposed track line, from one corner or change of direction to the next.
Step 3
Add the side extensions
Add any straight track needed beyond the bay at the left and right.
Step 4
Installation preferences
Mounting position
Curtain heading
How the calculation works
The calculator adds every bay section, then adds the selected straight extension at the left and right. It does not calculate the final bend shape or replace an installation survey.
total track run = all bay sections + left extension + right extension
Questions answered
Frequently asked questions
Do I need to enter the bay angles?+
No. This tool is designed to estimate the total track run from the straight section measurements. Final fitting still needs to be checked at the exact mounting line.
Where should I measure each bay section?+
Measure along the proposed wall or ceiling track line, from one corner or change of direction to the next.
Should I include track outside the bay?+
Yes. Enter any straight extension required beyond the left and right sides of the bay.
Can I order a curved track from this result alone?+
The total is useful for planning, but the final track shape and fitting measurements should be checked before cutting or bending.