I am getting ready to install new baseboards. The baseboards I have chosen are 5 1/2 inches tall and 1/2 inch thick. They are just flat baseboards -- no curved tops or anything. I have found some at a good price that are pine boards - not MDF. I am going to try and use a finish nailer to attach them to the walls. Is there a possibility the finish nailer will splt the wood? I would definitely not like to pre-drill them. Does anyone know if a finish nailer will give me problems with 1/2 inch thick pine boards? And perhaps someone can sugges what size nails I should use? Thanks for any suggestions.