I'm not sure what version you use but anyway, you must set the elevation of the walls Select the wall--> Edit--> Set object elevation--> write the desired elevation or Select the wall --> right click the elevation slider--> write the desired elevation or Select the wall--> right click on the piece--> Set elevation--> write the desired elevation In addition, use Design--> Default ceiling height so Punch knows the right elevation for all the elements in each level Let us know if you need additional help Patricia