Building Crossword

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Across
  1. 2. A device for climbing, consisting of steps.
  2. 5. A block of fired clay used in construction.
  3. 7. An upright structure forming part of a building.
  4. 9. A small metal spike used to join pieces of wood.
Down
  1. 1. A tool used to drive in fasteners.
  2. 3. The covering on the top of a building.
  3. 4. A tool with a toothed blade used for cutting.
  4. 5. A detailed plan for construction.
  5. 6. A binding material used in concrete.
  6. 8. A large machine for lifting heavy objects.