Wood and manufactured board

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Across
  1. 3. A hard, strong and expensive hardwood
  2. 5. Describes a forest which can be kept productive forever
  3. 10. One of the main disadvantages of wood
  4. 11. A brown, weak manufactured board. Used in drawer bottoms
  5. 12. An inexpensive softwood grown throughout Scotland
  6. 14. A red-coloured tropical hardwood
  7. 15. The type of wood which comes from a deciduous tree
  8. 16. The type of wood which comes from a coniferous tree
  9. 17. Hardwood which is a pale cream colour
Down
  1. 1. A word which means 'long-lasting'
  2. 2. A lightweight, durable and waterproof softwood
  3. 4. The name for trees which keep their leaves over winter
  4. 6. Hard, heavy and durable
  5. 7. A manufactured board made from thin sheets of material
  6. 8. The most durable softwood
  7. 9. The name for trees which lose their leaves in winter
  8. 13. The long, thin cells which give wood its properties