Look for chairs that look good from the side. Chairs that have a slight curve to them are best. The backs need to be one piece from the top down to the back legs. Also think about the height of the chair backs (ours are 16″ from the top of the bench seat) and if they have a cross-piece spanning the back legs where the wood for the seat can easily be attached.
Remove the front legs and seats. These knock-off Duncan Phyfe chair seats were held on by four screws. The legs were falling off and just pulled apart – the glue no longer held the dowels tightly.
Click On Link Below for Instructions: DIY Bench From Old Chairs