Sliding vs. French Patio Doors: Choosing the Right Style

The two most popular patio door styles—sliding and French—serve the same purpose but differ significantly in operation, appearance, and space requirements. According to the U.S. Department of Energy, understanding these differences helps you choose wisely.

Sliding Patio Doors

According to FGIA, sliding doors (also called gliding doors):

How they work: One or more panels slide horizontally on tracks

Advantages:

• No swing clearance needed (space-efficient)
• Large glass area for views and light
• Lower cost than French doors typically
• Easy operation (especially for accessibility)
• Contemporary appearance

Disadvantages:

• Only half opens for ventilation (in two-panel)
• Track requires regular cleaning
• Can be harder to seal against air infiltration
• Limited style options (less traditional look)

Best for:

• Small patios/decks
• Contemporary homes
• Maximum view desired
• Accessibility needs

French Patio Doors

According to DOE, French doors (also called hinged patio doors):

How they work: Two panels swing open on hinges (inward or outward)

Advantages:

• Full opening for ventilation and access
• Traditional, elegant appearance
• Better air seal typically
• More architectural style options
• Can be single (one panel swings)

Disadvantages:

• Requires swing clearance (72" for full open)
• More expensive typically
• More complex hardware
• Must secure doors when open (wind catch)

Best for:

• Traditional or transitional homes
• Large patios with space
• When full opening is desired
• Formal aesthetic preferences

Space Requirements

According to FGIA design guidelines:

| Door Type | Floor Space Needed | Opening Width |
|-----------|-------------------|---------------|
| 6' sliding | None inside/out | 3' accessible |
| 6' French out-swing | 3' outside | 6' accessible |
| 6' French in-swing | 3' inside | 6' accessible |

Energy Efficiency Comparison

According to NFRC testing:

Both types can achieve excellent efficiency with proper specifications:

• Sliding: Excellent when tracks well-sealed
• French: Excellent when weatherstripping maintained

Neither has inherent efficiency advantage with quality products.

Cost Comparison

According to industry estimates:

| Door Type | Typical Cost Range |
|-----------|-------------------|
| Basic sliding | $800-1,500 |
| Premium sliding | $1,500-3,000 |
| Basic French | $1,200-2,000 |
| Premium French | $2,000-4,500 |

French doors cost 20-50% more at equivalent quality levels.

The Bottom Line

According to DOE, choose sliding doors for space efficiency and contemporary style; choose French doors for traditional aesthetics and full opening access. Both can be highly efficient with quality products.

*For complete patio door guidance, see: [Patio Door Types](/guides/patio-door-types)*