Description
Performance Specs – At a glance
Available in multiple heights and widths to meet almost any parking structure and need.
– The K12 Manually Operated Height Restrictor Swing Bar is designed to alert vehicles that there is a
height limit for entering a location.
– The signage signaling the maximum height is extremely effective for deterring over-height
vehicles. In fact, over height vehicles cannot enter without damage.
– It is locked into place using the deployment handle and a padlock.
– It uses heavy duty sealed bearings that will enable smooth deployment over a period of many
years if properly maintained.
– The materials used – Aluminum and hot-dipped galvanized steel – will provide many years of
service if properly maintained.
– Allows over-height emergency vehicles access using a Knox box.
– Can be easily and effortlessly deployed at ground level. No need for a ladder or machinery.
– 100% manually operated, no need for electricity.
– Can withstand winds up to 115mph.
– This design can be modified for various height restrictions and road widths.
– Can be deployed in single and double configurations.
– Can be installed by a licensed general contractor.
– Can be installed on uneven grades and terrains.
– Can be opened and closed in seconds.
– Virtually maintenance free.
– Modular component design allows for ease of on-site installation and replacement of
components due to vehicle strikes.
– Engineered for strength, speed of deployment and reliability.
Height Restriction Barriers
Also referred to as a Truck Height Notice, Maximum Truck Height, Turn-around Barrier, Overhead Height Notice, Proceed with Caution Barricade, or Overhead Height Warning – a height restriction bar or barrier is a simple and effective way to secure car parks, parking garages, and other vulnerable areas with low hanging structures from large vehicles that could cause damage. A height restriction barrier features a steel cross beam that is attached to two large upright posts in a fixed position.
Vehicles that exceed the restriction barrier height will be unable to gain entry without sustaining significant levels of damage to their vehicle.
As with all barriers manufactured by K12 Defense, our height restriction barrier is designed and built to be robust and sturdy with 100% American steel. With multi-height limitations and widths, our car height restriction barriers suit a diverse range of car and truck entrance points.
All of our height barriers are available with swing gate options, giving you the ability to lock the parking area off to all vehicles as required.
If you are looking to install vehicle height restriction barriers, K12 Defense can create a custom solution. Our design team can work with you to produce a restriction barrier that is tailored to your specific requirements. We can incorporate your company colors and build the height restriction barrier to a custom height and span.
Fixed Height Restrictor

Removable Arm Height Restrictor

Swing Arm Height Restrictor

Vehicle Height Chart

From small, single lane height barriers… to massive commercial entry points… K12 Defense can design and build any SWINGING height restrictor barrier needed to secure your facility from unwanted traffic and oversized vehicles. Protect buildings, parking garages, security entrances, doorways, low-hanging equipment and overhead structures. K12 Defense will design a barrier that is right for you, call (480) 898-1272 today for a free estimate.
For extra wide driveways, our cable restrictors are the ideal choice for adding signs and warning messaging to keep oversized vehicles from entering sensitive and restricted parking areas. Below – the USPS needed to keep large semi-trucks from entering the employee parking area. The driveway was 70 feet wide, and the cable system was the best method for spanning the distance. Contact K12 Defense to discuss your specific height restriction issues. We can design a barrier that will look both professional and solve your specific challenges. CALL (480) 898-1272
