43x23 round top cargo door, two 38x30 cargo doors, 24x16 wall vent for AC condensor air intake [in front of doors]. Since it will be a 4x8 super simple [no front roof rake] I will only be using one of the 38x30 cargo doors, as I will be using the 43x23 for ingress/egress and the 38x30 as a galley hatch.