If you’re looking for an attractive, exotic wood for your deck, many San Francisco, California carpenters recommend cumaru wood. It’s stronger than pine, redwood and cedar, and is naturally resistant to rot and insect damage. What’s more, it’s unique in that it has a flame spread rating of Class A, which is the same as concrete or steel. Cumaru is also popular among carpentry contractors in San Francisco because of its long-lasting potential, good looks, and smooth texture. Unlike most exotic woods, cumaru doesn’t change in color much when exposed to the sun, and doesn't absorb water, twist or splinter like softer woods.