All seams are epoxied togeather. No screws were used other than to hold handles and hinges in place. So all endgrain is sealed.
The epoxy is" West System" brand, the same we used to make the 80' yachts. The Decon Bench was coated with epoxy before topcoat.
Also Teak does not split as easily as oak or other hard wood. It has alot of oil in it. Pat