Heavy duty refinishing of wood decking. Quick sanding of new build to remove planing chatter. New or old the key to proper protection is stain absorption. Proper sanding is the key to good absorption. Hardwood drum sander can get the job done right. Can cut deep through old weathered wood, exposing clean wood for stain. Also good fort along out some of the highs and lows of twisting boards. Call me for a free quote 20+ years experience