Table 6. Mechanical properties of wood specimens

Property	Treatment	Jabon	Sengon	Mangium	Pine
MOE (1,000 kgf/cm²)	Untreated	52.7 (4.4)^a	54.2 (7.1)^a	73.7 (5.5)^c	106.4 (12.0)^d
	FA wood	54.1 (3.9)^a	65.0 (6.3)^b	101.6 (8.1)^d	106.6 (8.3)^d
	Average	53.4	59.6	87.7	106.5
MOR (kgf/cm²)	Untreated	495 (26)^b	455 (39)^b	665 (63)^c	979 (105)^e
	FA wood	316 (34)^a	459 (43)^b	1,052 (81)^f	847 (55)^d
	Average	405.5	457.0	858.5	913.0
Strength class	Untreated	IV	IV	III	II
Strength class	FA wood	IV	IV	II	II
Hardness (kgf/cm²)	Untreated	128 (10)^a	135 (19)^a	259 (30)^c	433 (39)^d
	FA wood	262 (36)^c	188 (17)^b	478 (35)^e	447 (40)^d
	Average	195.0	161.5	368.5	440.0

Values in parentheses are standard deviations.
Values followed by the same letter within a row are not statistically different based on Duncan’s multiple range test.
MOE: modulus of elasticity, FA: furfuryl alcohol, MOR: modulus of rupture.