5 racks untreated with stainless mesh . height 1.8m x0.75 deep x0.7m wide .stainless flue to external fire . this will smoke 30 fillets kahawai easily 30 to 40 degree temp at 3 hours . I used to do 5 hours but my beer consumption also went up waiting for fishos to cook....not really a bad thing ? Can deliver in timaru no problem . On purchase can set up a demo run if required . This works awesome .