The hinge size is determined by the width of the gate or door.
For domestic use, the hinges should be 1/3 width of each gate
(or nearest size up).
For heavy use or industrial use, the hinge should be 1/2 the width of each gate (or nearest size up).
On doors or gates over 1500mm / 5ft high then a third hinge should be fitted. This is to ensure there is more than enough support.
All Kits come complete with the necessary fittings.