When evaluating Rubber Wood (Hevea brasiliensis), buyers must focus on moisture content (MC), which should ideally be between 8% and 12% to prevent warping or cracking in different climates. Ensure the wood has undergone pressure-impregnation treatment with boron preservatives to protect against fungal decay and insect infestation, as raw rubber wood is highly susceptible to pests. Additionally, verify the grading standards (e.g., Grade A, AB, or BC); Grade A should be free of knots, discoloration, and wormholes on all sides, making it suitable for high-end furniture.