If you have a large wide opening and require your window shutters to fold all the way back to the side then you will need track mounted shutters.
A track style fitting, are shutters that hang from an aluminium track, rather than being hinged at the side. This means that the added weight of the wooden shutters required to cover the wide opening is correctly supported. The track is mounted on a batten which is fitted along the top of your window recess. The shutters have small wheels attached to the top which run inside the track. The sides have battens fixed to the side of the recess which helps support the top track and create a neat finish
Shutters fitted on a track can fold all the way to the left or right sides, or they can be split in the centre to fold half to each side. You can have horizontal dividing rails lining-up with any window rails allowing you to operate the louvres independently either side of the rail. Because this style of shutter hangs from a top track you cannot have top-opening (tier-on-tier) shutters as these would normally open like a stable door.
Track shutters are popular for patio doors and very wide windows, you can also use shutters for room dividers. They take more time to fit and it is very important to fit the top track dead-level to obtain smooth running shutters.
When the shutters are folded back, they will not wrap around the wall due to wheels being fitted in the top of the track, instead, they will protrude into the room at 90 degrees. This is rarely a problem since the large windows they are covering easily hide their protrusion and the fact that you can fold the shutters back to one side or the other, depending on which way your door slides, you always have enough room.
For some wide windows that are split into sections, you can order more than one shutter frame, or use T-Posts (interim support posts) to ensure your shutters are guaranteed for their width and match your window layout.