Before attaching your side pieces to the front board you will want to attach your brackets that will mount your cornice box to the wall to the side pieces as well.
How to hang cornice board to wall.
Keep in mind that the inside of the front piece will not be visible when hung but the inside of the side pieces will be visible so pay attention to detail there.
Cut a piece of low tack.
Mount it to the wall above the window where you ll be hanging the cornice using a level and 2 wood screws.
Measure from the bottom edge up to the top of the keyhole.
Place a spirit level on top of the board and adjust the angle until the cornice is level.
The wall mounting brackets are the ones in blue in the diagram.
As you can see we hung the standard curtain rod at this point too and put the curtains on.
Rest a level on the front edge and.
How to hang cornice boards with no tops 1.
Lay the batting on a table counter or floor and then place the cornice board on top front side down.
Have one person hold the cornice board up to decide the height and then mark where the d hooks need to be hung.
Cut a 1 x 2 strip of wood just shorter than the full length of your completed cornice box.
Hold the cornice board above the window at the location you want to install it.
Unless you happen to be screwing into a stud use drywall anchors and then put in your screws.
In this diy video series the plasterboard experts at gyprock have already shown how to measure cut install and join plasterboard.
Hold the cornice board over the window or on the wall centering it on the curtain rod.
Be sure to attach to studs and not just dry wall.
Pull the batting to the back and staple trimming the excess as you go.
Lay the cornice board face down on a work surface.