Making your own adirondack chair has never been easier! kit contains templates cut from 7/32" mdf (medium density fiberboard) along with detailed instructions in one package. this favorite project among many woodworkers is now one of the simplest.. How to use the adirondack chair plans to make woodworking templates. so, in this post and video, i use the plans to make adirondack chair templates. i make the templates out of good quality phenolic plywood, so they will last a lot. and i can use them to copy all the parts with a flush trim router bit..