I just ordered my grids for smoker I plan on building. I plan on using 4x4 cedar for the four corners. cedar interior panels with insulation outside and a plywood exterior. Will I have any adverse problems with a cedar interior. I know I cant use pressure treated and the smoker will be in the open. It will have 4 grids of 24 3/8 x 14. Inside dimensions. will have 2 doors upper and lower with seperated fire/smoke box attatched with metal ductwork. Any help or advice would be great. Thanks and keep on SMOKIN!!!!!