Among exceptionally decay resistant tropical woods are ipe lignumvitae purpleheart and old growth teak.
Weather resistant hardwood.
Various species of cedar cypress redwood and white oak.
The following two sections list domestic and tropical tree species whose wood is exceptionally resistant resistant or very resistant and moderately resistant.
Cypress wood contains a natural preservative that is both rot and insect resistant.
Not quite as resistant as these but still defined as resistant or very resistant according to the fpl are more common woods that are widely sold for outdoor use.
Because of its ability to withstand weather it is often used for windows and exterior trim.
Cedar wood projects normally last more than 20 years sans any rot split or warp.
Cedar is also used for indoor furniture like dressers chests.
It is also commonly used for cigar boxes and humidors as well as the lining of closets and chests.
Shorea lumber is also resistant to both insects and rot.
Shorea is a durable dense tight grained hardwood that holds up well under the rough treatment of daily use and inclement weather.
These have the highest resistance to rot over time.
Like cedar cypress weathers to a silver gray over time when left unfinished.
Teak teak has been referred to as the gold standard for decay resistance.
Cedar is an insect resistant hardwood owing to its natural aromatic scent which makes it perfect for outdoor furniture.
One can find cedar application also for saunas closets house siding.
Left to its own devices the patina of shorea fades from gold to gray over time.