Treated rocking chairs are made of homegrown soft yellow pine that is pressure treated to resist all that nature can dish out. Pine is very popular for outdoor furniture, construction projects and decks because it is affordable, durable and easy to make into any shape and form. A well-constructed treated rocking chair will be as strong and durable as if made of any hardwood, but will cost you a fraction of the price. You will find some beautifully crafted treated rocking chairs, some left natural, others stained, varnished or painted. The most comfortable treated wooden rockers have oversized seat, rolled seat edge, curved and extra high back. If you buy your treated rocking chairs unpainted, you can have some fun with a stain or paint and make them totally personalized. You can leave them outdoors, especially if you use a marine grade paint, but expect some cracking and peeled paint with time. Your treated rocking chairs will be resistant to termites and other bugs and will give you years of pleasure with no worry.