I have a 27 foot Interstate Enclosed trailer. I want to put in a window in it, I have already purchased the Window on line and it is here. It is 24 wide and 26 tall dual pane slider. I have looked for just a little insite to putting this window in and cant find anything. I have put windows in Houses and stuff but this is a little diffrent. the window i bought is 1 7/8 of a inch tick, That is perfect. IT has a window trim ring that is what will hold the window in from the inside with metal screws. Since the window is 24 wide and i will have to remove part of a stud (metal) will i have to build a header for this or can i cut it just perfect so the window will carry the weight of only one stud. And i am going to mount it as high as i can so there should be a header in the whole trailer at the top i think. Well if anyone has done this let me know what little secrets are involved. I will caulk it on the outside and inside and make it pretty