Remington CroftHow to Measure Bay Windows for Curtains and Rods
Last updated: September 16, 2026 — rechecked against Dunelm and M&S measuring guides plus Jane Clayton hardware specs and updated where details changed.
Reviewed by Emily Holmes, General Reviewer, following our test method.
A practical walkthrough for how to measure bay window for curtains: bay window angles, face width segments, return overlap inches in plain order, the main options compared side by side, and the mistakes that cause redos flagged up front. Pick one option from the table and work it fully.
Quick answer: compare paths first using the table below. Confirm fit against bay window angles, face width segments, return overlap inches, flexible curtain track. Check the mistakes section before you commit. Details and FAQs below.
Quick Comparison Table Single Rod vs Track vs Three Rods
Pick one path first — that choice matters more than any single tip below. The table maps the main options; the sections below resolve fit and failure modes.
| Method | Key Points | Best For |
|---|---|---|
| Quick Comparison Table Single Rod vs Track vs Three Rods | Main checks for quick comparison table single rod vs track vs three rods — full detail in the section below | See whether this matches your case below |
| Step 1 Measure Each Pane Face to Face | Main checks for step 1 measure each pane face to face — full detail in the section below | See whether this matches your case below |
| Step 2 Mark Angles With Cardboard Template | Main checks for step 2 mark angles with cardboard template — full detail in the section below | See whether this matches your case below |
Related: How to Measure for Curtains in 2026 (Width, Drop, Fullness).
Heads-up: bay window angles, face width segments, return overlap inches, flexible curtain track differ from case to case, so use the steps here as the reliable core and confirm current specifics in Sources before you decide.
Step 1 Measure Each Pane Face to Face
Work through bay window angles, face width segments, return overlap inches in order: confirm the starting point, run the steps once without skipping, then verify the result before moving on.
- Use it when: your case matches this option.
- Skip it when: another option below fits better.
- Spec to confirm: the one detail readers get wrong here — check it in Sources.
Step 2 Mark Angles With Cardboard Template
For step 2 mark angles with cardboard template, define the goal, try the smallest complete version first, and check it against bay window angles, face width segments, return overlap inches before continuing. Where details vary, verify specifics in Sources.
Step 3 Add Returns and Overlaps
For step 3 add returns and overlaps, define the goal, try the smallest complete version first, and check it against bay window angles, face width segments, return overlap inches before continuing. Where details vary, verify specifics in Sources.
Flexible Track Bend Radius Tips
Measure the hardware, not the window — that's the whole game. Blackout linings hem differently (a long single layer at the bottom) and radiators want three centimetres of clearance — plan both before you order (maker blogs). Width multiplies by header: pencil pleat wants about one pole-width per panel (two for the pair), eyelet about double, tab tops around one-and-a-half — window width alone always undershoots (Dunelm, M&S guides).
Setup Tips to Get Better Results Faster
Prep beats rework here: gather what you need once, note your starting point, keep bay window angles, face width segments, return overlap inches in mind while you work, and stop at the first unexpected result to re-check fit.
FAQs Bay Windows
What is the fastest way to handle this?
Start with the comparison table, pick one path, and finish its checks fully. Switching mid-way is slower than one clean pass.
What do most guides miss here?
Most short guides skip the fit checks — bay window angles, face width segments, return overlap inches. The sections above cover them so you don't have to piece it together from five tabs.
When should I choose a different option here?
When your situation points to another option below — use the related guide for that option instead of forcing this one to fit.
Where can I verify current details?
Use the primary sources in Sources below — provider pages and official references change faster than any guide.
How much wider than the window should curtains be?
Roughly double the pole width for eyelets, less for pencil pleats — the header sets the multiplier, not the glass.
Bottom Line
Compare the options first, confirm fit against bay window angles, face width segments, return overlap inches, then check the mistakes section. Use the related guides below for background and nearby options.
Related Guides
- How to Measure for Curtains in 2026 (Width, Drop, Fullness)
- How to Measure a Window for Curtains and Rod Placement
- How to Measure a Doorway for Curtains and Drapes
- Inside vs Outside Mount Curtain Measuring Compared
Sources: verify current details in primary references for how to measure bay window for curtains — Window treatment pro guides + track maker manuals + remodel tutorials. Evidence is thin where providers differ; prefer official pages over aggregators.