Building materials

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Across
  1. 2. plank
  2. 4. wood
  3. 8. cement
  4. 10. concrete
  5. 11. brick
  6. 12. gravel
  7. 14. steel
  8. 15. clay
Down
  1. 1. floorboard
  2. 3. stone
  3. 5. tile
  4. 6. slate
  5. 7. plaster
  6. 9. marble
  7. 12. glass
  8. 13. vinyl