What are the thermal expansion coefficients of granite vs. concrete outdoor chairs?

When selecting outdoor furniture, understanding the thermal expansion coefficients of materials like granite and concrete is crucial for durability and longevity. Granite, a natural stone, has a relatively low thermal expansion coefficient of approximately 8 x 10^-6 per °C, making it highly resistant to temperature changes. Concrete, on the other hand, has a higher coefficient, around 12 x 10^-6 per °C, which means it expands and contracts more with temperature fluctuations.

This difference affects their performance in outdoor environments. Granite chairs are less likely to crack or warp under extreme weather conditions, while concrete chairs may require additional reinforcement or design considerations to prevent damage. Both materials offer unique aesthetic and functional benefits, but granite's lower thermal expansion makes it a more stable choice for long-term outdoor use.

For homeowners and designers, this comparison highlights the importance of material selection based on climate and intended use. Whether prioritizing durability or design flexibility, understanding these properties ensures better investment decisions for outdoor furniture.