You need to look at your current window and figure out how much of the window cutout you can use for your new bi fold french doors.
													
																	Turn a window into a french door. 
									
	
		
	
																	Dan faires explains why it s better to let a professional install french doors. 
																	Also measure the window s location on the wall compared to where you will place your door. 
																	Converting standard doors to french doors allows light into rooms in a unique way. 
																	These doors which are constructed with solid framing around a center of glass panes. 
															
													
									
	
		
	
																	The good news about turning a window into a door assuming it s wide enough is that the advanced carpentry required for altering a load bearing wall. 
																	So you ve just built a new deck on the back of your house and those once lovely double windows in the living room would now make a better door sliding glass or french out to that awesome deck. 
																	You will want to measure the height and width.