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Why should I buy C24 Imported Graded Timber and not C16 Home Grown Timber ?
  • C24 is slower grown timber with less defects
  • C24 is structurally stronger
  • C24 is much straighter
  • C24 has less bend, twist and warp
Strength Class       C16          C24  
 Bending parallel to grain (N/mm2)  5.3  7.5
 Tension parallel to grain (N/mm2)  3.2  4.5
 Compression parallel to grain (N/mm2)  1.8 7.9
 Compression perpendicular to grain (N/mm2)  2.2-1.7  2.4-1.9
 Shear parallel to grain (N/mm2)  0.67  0.71
 Modulus of elasticity mean (N/mm2)  8,800  10,800
 Modulus of elasticity minimum (N/mm2)  5,800  7,200
 Characteristic density (kg/m5)  310  350
 Average density (kg/m5) 370 420