Enhanced Fujita Scale Damage Indicators and Degrees of Damage

C-6 Sheds, Fences or Lawn Furniture (C-SFLF)

Typical Construction:

Shed

  • Single storey and less than 12 m2
  • Wood, metal and/or plastic construction
  • Metal, wood, plastic or shingle roof
  • May have wood, metal or vinyl siding
  • May have one or more windows
  • May be unanchored or weakly anchored

Wood fence

  • Wood rails, panels and posts (sunk into post holes)

Lawn Furniture

  • Light wood, metal and/or plastic construction intended for outdoor use

Notes:

  • Use upper bound wind speed for large and/or well-anchored sheds
Table 31. Degree of Damage (DOD) for Expected (EXP), Lower Bound (LB) and Upper Bound (UB)
DODDamage DescriptionEXP*LB*UB*
1Garden shed overturned, wood fence blown down, lawn furniture blown around9070110
2Garden shed rolled or carried through the air less than 10 m, lawn furniture carried through air135110160
3Garden shed carried through air 10 m or more180150210

*All wind speeds in km/h

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