Disapering wall plane

[b-rad]

I've had this problem before but now its a big problem. I will start at the beginning. I created wall for this addition I am drawing by starting with a square, offsetting my wall thickness and pulling that up to the necessary height. I went ahead and drew some cabinets on the wall. I usually draw them on the floor or wall and pull them to there height/depth. I drew a window and pushed it through the wall. Well now it seems that the interior plane of the wall is not there so now that I have drawn siding on the exterior is shows up on the interior. Please help, how do I make that plans solid again?

[Gaieus]

Try to redraw some of the edges of the wall. If you have not gone out of alignment (and your "supposed to be" wall is still coplanar), this should heal the missing faces.

For the future however: make your walls a group before adding any furniture and stuff. If you cannot succeed, attach the model here.