Builder s insulation foam 1 2 inch foam insulation only 8 per sheet from home depot.
													
																	How to make wood cornice window treatments. 
									
	
		
	
																	Use 2 wood screws to attach the l bracket to the window frame. 
																	Staple gun to staple the fabric and batting to the foam sheets. 
																	Level and mark the holes to install a heavy duty l bracket on the top right side of the window frame. 
																	A padded cornice gives a softer more textural feel to the. 
															
													
									
	
		
	
																	We put a little dot where we wanted to start the keyhole slot. 
																	To make your own diy cornice window treatment you will need. 
																	Duct tape to hold the builders foam together. 
																	A cornice is basically a decorative open box mounted above your window to frame the curtains and give the room a finished tailored look. 
															
													
									
	
		
	
																	Determine the exact placement of the cornice on the window. 
																	Pre drill holes using a 1 4 drill bit. 
																	Every wood cornice begins the same way with cutting and assembling the three sided lidded box photos 2 4. 
																	A wood window valance box might also be called a pelmet box which is typically more solid than a valance but covered in fabric to match the drapery. 
															
													
									
	
		
	
																	The cornice is then ready for mounting on the wall by screwing it to a 1 2 that s screwed to the wall above the opening photos 12 14. 
																	Fabric to drape over the builders foam. 
																	We made a little t on the top part of the pieces of wood in order to remember where the top was. 
																	Then you add the trim of your choice photos 5 9 and finish the cornice photo 11. 
															
													
									
	
		
	
																	A window cornice is typically solid like these made from wood in this tutorial while a window valance is traditionally made from fabric and more like a short curtain at the top of the window.