A laundry chute for the log house

 As the utility room is adjacent to the stairs from the bedrooms, we have cut a hole in the ceiling so that laundry can be dropped down without having to go down the stairs. It will land in a cupboard near the washing machine. We have to make sure that we do not enable a fire path by making sure we use a thick wooden flap for the door at the top of the chute. We will take an idea from the vacuum system and make sure the smallest part of the chute is the bit where you put things in so that if items of clothing get past that point then they will make it through. As the total length of the chute is only 18 inches, it should not be a problem.