What Size Flag for My Flagpole? The Complete Flag-to-Pole Ratio Guide
Shop Residential Flagpoles
American-made aluminum flagpoles priced delivered to your ZIP — shop while you read.
A flag that's too small looks lost; one that's too large puts dangerous stress on your pole and hardware.
The Standard Ratio
The flag length should be approximately 25-33% of the pole's above-ground height.
| Pole Height | Min Flag | Max Flag | Recommended |
|---|---|---|---|
| 15 ft | 2.5×4 ft | 3×5 ft | 3×5 ft |
| 20 ft | 3×5 ft | 4×6 ft | 4×6 ft |
| 25 ft | 4×6 ft | 5×8 ft | 5×8 ft |
| 30 ft | 5×8 ft | 6×10 ft | 5×8 ft |
| 35 ft | 5×8 ft | 8×12 ft | 6×10 ft |
| 40+ ft | 6×10 ft | 10×15 ft | 8×12 ft |
Factors That Affect Sizing
- Wind exposure: High-wind areas? Go one size smaller
- Multiple flags: Each should be one size smaller than single-flag recommendation
- Flag material: Nylon is lighter; polyester and cotton are heavier
Our American-made nylon flags are the best all-around choice. Use our flag size and wind guide for detailed recommendations.
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