How to Choose the Right Width for Your Medicine Cabinet
Choosing the correct medicine cabinet width depends on four key factors:
vanity size, wall space, lighting layout, and installation style.
Here’s a practical sizing guide to help you decide.
1. Start with Your Vanity Width
As a general rule, your medicine cabinet should be slightly narrower than your vanity for proper balance and door clearance.
| Vanity Width | Recommended Cabinet Width |
|---|---|
| 30" Vanity | 24–26" |
| 36" Vanity | 28–32" |
| 42" Vanity | 32–36" |
| 48" Vanity | 36–42" |
| 60" (Single Sink) | 48–54" |
| 60" (Double Sink) | Two 20–26" cabinets or one 48-54" cabinet |
| 72" (Double Sink) | Two 28–32" cabinets or one 60–72" cabinet |
QueenFun Pro Tip:
Your cabinet should be at least 1 inch narrower than the vanity to allow the doors to open freely (minimum 90° opening clearance).
2. Plan Around Your Lighting
Lighting placement affects how wide your cabinet can be.
- If installing wall sconces, leave 5–6 inches between the cabinet edge and each sconce.
- If using an overhead light, you can typically choose a slightly wider cabinet.
Proper spacing ensures both functionality and visual balance.
3. Choose the Right Installation Style
Recessed Installation
- Sits inside the wall
- Can accommodate slightly larger widths
- Requires sufficient wall depth and framing
Surface-Mount Installation
- Mounted directly on the wall surface
- Slightly narrower widths often look cleaner
- Ideal for bathrooms without wall cavity space
4. Consider Aesthetics & Symmetry
- A centered cabinet above the sink creates a clean, balanced look.
- For double vanities, two separate cabinets (one over each sink) often look more proportional.
- A single long cabinet works well for a modern, seamless design.
5. Check Vertical Clearance
- Ensure enough space above the faucet and below light fixtures.
- Standard cabinet heights range from 24–30 inches, so confirm your ceiling height and plumbing placement allow comfortable spacing.
Still Unsure About the Right Size?
We’re happy to help.
Simply share:
- Your vanity width
- Sink configuration (single or double)
- Lighting setup
- Installation preference (recessed or surface mount)
Contact us at support@queenfun.com and our team will help you determine the ideal layout for your bathroom.

