What are the thermal expansion coefficients of teak versus cedar in outdoor seating?

When selecting wood for outdoor seating, understanding the thermal expansion coefficients of materials like teak and cedar is crucial. Thermal expansion refers to the tendency of wood to expand or contract with temperature changes, which can affect the durability and stability of outdoor furniture.

Teak, known for its high density and natural oils, has a relatively low thermal expansion coefficient of approximately 5.5 x 10^-6 per °C. This makes it highly resistant to warping or cracking in fluctuating temperatures, a key reason why teak is a popular choice for outdoor furniture.

Cedar, on the other hand, has a slightly higher thermal expansion coefficient, around 7.0 x 10^-6 per °C. While cedar is also a durable and weather-resistant wood, it may experience more dimensional changes compared to teak when exposed to extreme temperature variations.

In summary, teak's lower thermal expansion coefficient makes it a more stable option for outdoor seating in environments with significant temperature fluctuations. Cedar, while still a reliable choice, may require more maintenance to ensure long-term performance. Both woods, however, remain excellent options for outdoor furniture due to their natural resistance to decay and weathering.