How do expansion and contraction rates of eucalyptus compare to teak in planters?

When selecting wood for outdoor planters, understanding expansion and contraction rates is crucial for durability. Eucalyptus, a fast-growing hardwood, exhibits moderate movement due to moisture changes—expanding in wet conditions and contracting as it dries. Its interlocked grain helps reduce splitting but requires proper sealing.

Teak, a premium tropical hardwood, has superior stability with minimal expansion and contraction. Its natural oils and tight grain resist moisture absorption, making it ideal for long-term outdoor use. While teak outperforms eucalyptus in dimensional stability, eucalyptus offers a cost-effective alternative with moderate care.

For planters in fluctuating climates, teak’s low movement reduces cracking risks, whereas eucalyptus may need more frequent maintenance to counteract seasonal wood movement. Choose based on budget and willingness to maintain the wood’s integrity over time.