The Shade Factor: How Much Shade Does a Typical Pergola in Central Texas?

Pergolas are designed to provide filtered shade, not full coverage. Homeowners choose them for the balance of sunlight, airflow, and architectural style — especially in Central Texas where outdoor living is year‑round. If you’re comparing pergola options, start with our main Pergolas page.

What “Shade Factor” Really Means

A pergola’s shade factor refers to how much direct sunlight is blocked by:

• Slat angle
• Slat spacing
• Beam thickness
• Orientation to the sun
• Material (cedar vs aluminum)

For a deeper breakdown of materials, see Aluminum vs Wood.

How Much Shade Does a Typical Pergola Provide?

Most standard pergolas provide 40–60% shade, depending on design.

Here’s how the variables affect shade:

1. Slat Angle (The #1 Factor)

Angled slats can dramatically increase shade coverage.

• Flat slats → ~40% shade
• 15–30° angled slats → 50–70% shade
• Adjustable slats → variable shade throughout the day

Learn more about modern slat systems in Pergola Design Guide.

2. Slat Spacing

• Tighter spacing = more shade.
• Wide spacing → airy, open feel
• Medium spacing → balanced shade
• Tight spacing → maximum filtered shade

3. Pergola Orientation

Orientation determines how the sun interacts with the structure.

• East–west orientation → more morning/evening shade
• North–south orientation → more consistent shade
• South‑facing patios in Texas benefit from angled slats

If you’re designing a pergola for a specific home layout, explore Pergola Design Trends.

4. Material Choice (Cedar vs Aluminum)

Material doesn’t change shade percentage, but it affects:

• Heat absorption
• Longevity
• Maintenance
• Aesthetic style

Learn more about Aluminum Pergolas.

Want More Shade Than a Standard Pergola Provides?

Pergolas can be upgraded with:

1. Polygal Roof Panels (70–85% shade)

Polygal adds:

• UV protection
• Rain protection
• Higher shade factor
• Modern aesthetic

Learn more about Polygal Roofing.

2. Shade Cloth or Fabric Panels (60–90% shade)

A flexible, budget‑friendly upgrade.

3. Louvered Pergola Systems (Adjustable shade)

These systems allow you to control:

• Light
• Shade
• Ventilation
• Rain protection

Shade Performance in Central Texas

Sun intensity varies across the region, so shade needs differ:

San Antonio Pergolas

Hotter temps → homeowners often choose angled slats or Polygal.

Austin Pergolas

Modern homes → aluminum or louvered pergolas are popular.

Hill Country Communities

Cedar is common in:

• Boerne
• Bulverde
• New Braunfels
• Dripping Springs

Examples:

• San Marcos
• Round Rock
• Cedar Park

What Shade Level Do Most Homeowners Choose?

Based on Central Texas projects:

• 40–50% shade → homeowners wanting filtered light
• 60–70% shade → angled slats
• 70–85% shade → Polygal
• Adjustable shade → louvered systems

Ready to Build a Pergola With the Perfect Shade Level?

Start with our main Pergolas page or call us today.