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Amapa doce
Amapa doce (Macoubea guianensis)

Family: Apocynaceae

Common names: Amapa doce, Huapa-caspi, Juapa-caspi, Liekapatoe, Mapa, Mappa, Molongo, Rokko-rokko, Roko-roko, Rokoroko, Sokko sokka, Sokko sokko, Yacosanango

Distributed in: Brazil, French Guiana, Peru, Suriname (Latin America)

Common uses: Boxes and crates, Food containers, Furniture, Joinery, Light construction, Matches, Mathematical instruments, Millwork, Plywood corestock, Plywood, Veneer

Tree size: Tree height is 20-30 m

Colors: the heart isPale brown, Yellow to golden-yellow to orangeand the sapwoodWhite to yellow .The grain isWeak (figure), the textureMediumand the lusterLustrous

Natural durability: Susceptible to attack from termites (Isoptera), Very durable

Kiln Schedules: Drying (speed) is fast

Drying Defects: Slight surface checking, Slight twist/warp

Ease of Drying: Moderate

Tree Identification: Bole/stem form is not buttressed

Comments: General finishing qualities are rated as good

Boring: Easy

Cutting Resistance: Cutting Resistance with dry wood is easy

Gluing: Easy to glue

Nailing: Easy to nail

Planing: Planes well, to a good finish

Response to hand tools: Fairly Difficult to Difficult to Work


Polishing: Satisfactory;

  • Numerical data Metric
  • Numerical data English
  • Strength properties
  • References
Item Green Dry Metric
Specific Gravity
Density 416 kg/m3
Bending Strength 954 1473 kg/cm2
Crushing Strength 212 362 kg/cm2
Hardness 144 kg
Impact Strength cm
Shearing Strength 62 kg/cm2
Stiffness 83 97 1000 kg/cm2
Tangential Shrinkage 6 %
Radial Shrinkage 3 %
Weight 400 368 kg/m3
Maximum Load cm-kg/cm3
Toughness cm-kg
Static Bending kg/cm2
Item Green Dry English
Bending Strength 13576 20956 psi
Density 26 lbs/ft3
Hardness 319 lbs
Maximum Crushing Strength 3027 5157 psi
Shearing Strength 882 psi
Stiffness 1188 1383 1000 psi
Weight 25 23 lbs/ft3
Radial Shrinkage 3 %
Tangential Shrinkage 6 %
Volumetric Shrinkage 8 %

Density (dry weight) = 23-30 lbs/cu. ft.
Shrinkage, Radial = very small
Shrinkage, Tangential = very small
Shrinkage, Tangential = small
Shrinkage, Tangential = moderate
Shrinkage, Radial = small
Shearing strength (parallel to grain) = very low
Hardness (side grain) = very soft
Density (dry weight) = 31-37 lbs/cu. ft.
Bending strength (MOR) = high
Shrinkage, Volumetric = small
Shrinkage, Tangential = fairly large
Shrinkage, Radial = moderate
Modulus of Elasticity (stiffness) = very low
Modulus of Elasticity (stiffness) = low
Max. crushing strength = medium
Max. crushing strength = low

Berni, C.A., Bolza, E., Christensen, F.J.,1979,South American Timbers - The Characteristics, Properties and Uses of 190,Species,C.S.I.R.O Div. Building ResearchFanshawe, D.B.,1954,Forest Products of British Guiana Part 1 Principal Timbers,Forest Department British Guiana Forestry Bulletin (New Series 2nd,Edition,No.1Record, S.J., Hess, R.W.,1943,Timbers of the New World,Yale University PressSurinam Forest Service,1952,Surinam Timber - A Summary with brief descriptions of the main timber,species of Surinam,Surinam Forest ServiceWangaard, F.F., W.L. Stern, and S.L. Goodrich. 1955. Tropical Woods - Properties and Uses of Tropical Woods, Volume V, No. 103. School of Forestry, Yale University, New Haven, Connecticut.Wood, B., Calnan, D.,1976,Toxic Woods,British Journal of Dermat 94 Suppl. 13
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