Height Clearance Warning Bars: Planning Low-Clearance Entrances
A low entrance needs more than a visible yellow bar. Drivers need to recognise the restriction in time, and the site team needs to know that the message matches the route beyond it. For European facilities managers, distributors and project buyers, a clearance-warning system starts with a site survey and a clear purchasing brief.
Where a warning bar fits
Private car parks, garages and warehouse access points may have overhead restrictions. Review the approach, lighting, vehicle mix and any safe place for an unsuitable vehicle to turn away. Positioning must be agreed for the actual site; a warning at an entrance is of limited use if drivers cannot respond before reaching it. This product is a visual warning system, not a structural vehicle barrier.
Bar length is not vehicle clearance
The OranLite DH-HC-1-2M product page lists a two-bar set containing clearance-warning and no-entry warning bars. Each assembled bar is 2,000 mm long, formed from two 1,000 mm sections; overall bar height is 125 mm and thickness is 50 mm. The page describes suspension chains for positioning. The 2 m dimension is the bar length, not a permitted vehicle height. Do not derive a mounting height or a load rating from these dimensions.
Confirm the message before ordering
The product page states that the reference artwork uses an imperial clearance legend and that a metric-printed version is not confirmed. Ask the supplier to confirm the exact wording, units and artwork supplied before purchase. Do not assume a translated product page means translated printing. Have the actual clearance and mounting position checked for the site, including the route beyond the entrance and changes in level; do not copy the reference artwork's value into the site plan.
Installation and inspection
Ask for the assembly and suspension instructions, the fixing requirements and confirmation of the components supplied. A competent installer should assess the support and select fixings suited to it; this guide does not specify anchor sizes, chain capacity or installation clearances. Control access while work is under way. Before reopening, check alignment, attachment security and the view from the approach. Inspect for loose or damaged components, unreadable markings and changes to the overhead route. After contact or damage, control access and arrange assessment before returning the installation to service.
Give procurement a complete brief
Provide entrance photographs, route measurements, vehicle types, support details and the required wording. Confirm which of the two warning messages belongs at each location. Recheck the plan after changes to doors, services or surfaces. These details help the supplier and installer identify what must be confirmed before an order becomes an installation.