Arbor Pergolas Wooden Top Boards Only , Unfinished . 1 Pc, for longer sizes text customer service at 2032497895 . Wood Is Pine or Fir . cutout in bottom is for 4x4 post Available also pressure treated Wood for 20% more , you can pay here after placing this order https://www.etsy.com/listing/1038918876 . Some Big & small Knots are Present. Md4 Solid Unfinished Untreated Rastick Wood Top Pc For Arbor Pergolas Gates Fences , Top Part, 1.5