<p>The production of <i>Acacia mangium</i> (acacia) logs in 2024 reached 42.25% from total production of logs in Indonesia. However, previous investigation revealed that acacia, especially sapwood, has low quality in basic properties and natural durability. In order to optimize the utilization of short rotation acacia wood, its inferior properties need to be enhanced. The goal of this present research was to investigate the effect of furfuryl alcohol (FA) and glycerol-citric acid (GCA) treatments on the technological properties of acacia. FA treatment was performed using mixture of 45% furfuryl alcohol and 5% tartaric acid at the polymerization temperature of 120&#xa0;°C and GCA was carried out using 34% citric acid and 10% glycerol at the polymerization temperature of 140&#xa0;°C. The properties of treated acacia wood were characterized by measuring their impregnation rate (IR), weight% gain (WPG), bulking effect (BE), density, leachability, colour change, dimensional stability, thermal stability, contact angle, durability, and mechanical properties (modulus of elasticity (MOE), modulus of rupture (MOR), Brinell hardness). The results show that the IR, WPG, and BE of treated sapwood were higher than those of heartwood. Fourier Transform Infrared (FTIR) analysis indicates that the reaction of FA or GCA polymer occurred with the wood polymers. Durability of the FA and GCA treated wood against brown rot and white rot was classified as very durable (class 1). The treated acacia wood also presented a darker colour, higher density, higher contact angle, higher Brinell hardness and better dimensional stability compared with the untreated wood. However, the FA and GCA treatments caused a slight decrease in the value of both MOE and MOR. The GCA treatment could be an eco-friendly promising method for improving the quality of short-rotation wood, turning it to be suitable for both interior and exterior applications.</p>