Selecting the correct hardware for a sliding gate begins with understanding the gate's design. The physical construction of the gate determines which hardware options are compatible, so it's important to identify your gate type before making any purchasing decisions.
Scenario 1: Metal frame gate with front-face cladding
This applies to gates with cladding — such as vertical slats, pickets, or Colorbond sheeting — attached to the front face of a metal frame, where the cladding runs vertically from top to bottom.
Because the cladding creates an uneven surface, rollers are not suitable in this scenario. Rollers require a smooth, flat surface to function correctly and lack the flexibility needed to accommodate the in-and-out variation caused by the cladding profile. The appropriate solution is to weld an angle iron to the back face of the gate (or alternatively, attach a screw-on Z-profile), which then allows a nylon support block to be used.
Exception: If a plinth board or capping piece has been installed along the top of the gate, creating a flat horizontal surface, then an overhead long bracket fitted with rollers — or independent rollers — becomes a viable option.
Learn more on Z profiles and Nylon Block System
Scenario 2: Metal frame gate with infill bars, slats, or pickets contained within the frame
This applies to gates where all vertical or horizontal infill elements sit entirely within the outer frame and do not protrude beyond it in any direction.
This scenario offers the greatest flexibility, as all hardware options are compatible. Common solutions include an over-the-gate bracket with a roller on each side, a block-and-channel system using a Z-profile, or independent rollers.
Learn more on Roller and Bracket Sets
Scenario 3: Metal frame gate with decorative elements extending above the frame
This applies to gates featuring spears, scrolls, or any other design elements that protrude above the top of the metal frame.
Because these elements obstruct the path of an overhead bracket, only two options are suitable. The first is to use independent rollers — one mounted on the fence post and one on a support post positioned behind the gate. The second is to weld an angle iron to the back face of the gate and use a nylon support block, as described in Scenario 1.
Learn more on Independent Roller and Brackets