A Fortress of Self-Defending Wood
The Mandalay Palace, constructed between 1857 and 1859, relied on the remarkable properties of teak wood (Tectona grandis). The heartwood of this tree contains high amounts of natural oils and silica, which act as a potent defense mechanism. These organic compounds are unpalatable to termites, deterring them from feeding on the timber. The silica content also makes the wood physically harder for insects to penetrate. This inherent resistance meant the palace's massive structural pillars and beams required no chemical preservatives to protect them from insect damage and decay, an engineering advantage in a tropical climate.
The size of the original teak construction was immense. The entire palace complex was built almost exclusively from this timber, with many components salvaged from the old royal palace at Amarapura and moved to the new capital of Mandalay. The fortress walls enclosing the palace grounds form a perfect square, each side running 2 kilometers long, surrounded by a moat 64 meters wide and 4.5 meters deep. Inside this fortified square, dozens of wooden buildings made up the royal residence. The builders used sophisticated timber joinery and a post-and-beam system, crafting the structures with minimal need for metal fasteners.