I have recently built a small deck to site a kids playhouse on. I used Wickes budget decking boards - and some of them ain't pretty - green (!) knots in some. Everyone seems to say that oil is best for decking, but I am thinking of using stain to hide the ugly blotches in the wood. Good idea or bad idea?
I prefer microporous decking oil,allows the wood to breathe, Osmo Decking Oil & Osmo Anti Slip Decking Oil would be high on my list,excellent products. A bit cheaper then look at Manns Decking Oil or Barrettine Decking Oil, not sure if they are microporous though http://www.wood-finishes-direct.com/product/osmo-anti-slip-decking-oil http://www.wood-finishes-direct.com/product/osmo-decking-oil http://www.wood-finishes-direct.com/product/manns-uv-decking-oil http://www.wood-finishes-direct.com/product/decking-oil
I've used Liberon Decking Oil, great product and long lasting. http://www.screwfix.com/p/liberon-decking-oil-teak-5ltr/3625f
Best advise I can give you when it comes to decking, where wood used is lower quality or recycled. Use a solid colour decking finish they come in many different colours that simulate a wood finish. They are highly durable, especially in the out door areas. You could stain or oil but you'll find your self having to redo every year or so. I have given customers the same advise. The decks I've prepared and painted with a solid colour decking finish have lasted and looked good 4-5 years Try it out