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Sentinel Overhead Goalpost Kits - Warning Height Restriction

  • Was $899.00
  • Now: $795.00

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Sentinel Goalposts Height Warning Barrier Kits

Our Non-Conductive Height Warning Goalpost Barrier system is a lightweight, cost-effective solution to aid with on-site safety and warn users of overhead dangers. Use our kits in accordance with the INGAA Construction Safety & Quality Consensus Guidelines as well as other construction safety standards. This system is designed to be set up by bridging an access pathway before and after an overhead obstacle that is to be avoided.

Engineering and construction groups require multiple levels of safety control, one of which is a physical barrier to prevent damage to overhead structures or obstacles.  Many makeshift warning devices have been used in the past but our kit allows for fast adjustable deployment and improved safety where overhead obstacles are present. They are used to ensure that adequate warning is given to personnel and vehicles about overhead obstacles such as power lines and structures. 

These kits are also known as GS6 kits, guardian goalposts, overhead goalposts, safety bunting/ribbon warnings, non-conductive height warnings, and overhead cable protection posts. The poles are made from fiberglass and are non-conductive to 75kv.

Sentinel Goalposts Logo
Height of Safety and Fluid Safety Logo
Height Restriction kit in use

Each kit includes a choice of two bases, 2 telescopic non-conductive upright poles, and 82ft of bunting. Most users decide to use the water fillable Metro Bases for independent stability.

Four options for Overhead Goalposts to choose from

Bunting and Steel Base

Kit 1

  • 2 x 24ft Telescopic Poles
  • 2 x Galvanized Steel bases
  • 1 x 82ft of High-Visibility Bunting
Solid Cross Bar and Steel Base

Kit 2

  • 2 x 24ft Telescopic Poles
  • 2 x Galvanized Steel Bases
  • 1 x Solid Telescopic Crossbar
Solid Cross Bar and Steel Base

Kit 3

  • 2 x 24ft Telescopic Poles
  • 2 x Metro blocks
  • 1 x 82ft of High-Visibility Bunting
Solid Cross Bar and Steel Base

Kit 4

  • 2 x 24ft Telescopic Poles
  • 2 x Metro blocks
  • 1 x Solid Telescopic Crossbar

Features of the Sentinel Goalpost kit

  • No tools required assembly
  • Easy to use locking hand clamps
  • Choice of bolt down steel bases or plastic water-filled Metro Block bases
  • Insulated to 75kv with a multi-layered fiberglass tube construction
  • HSE GS6 Compliant (Avoiding Danger from Overhead Power Lines)

Rigid Crossbar or Bunting/Ribbon?

  • Bunting has flexibility and movement outside
  • Bunting is the most compact solution for transport
  • The Telescopic pole doesn't sag. maximum extension: 25ft
  • The Crossbar is becoming the recommended standard
  • Bunting is prone to sagging

No tools required locking hand clamps

The Sentinel System

Our unique "Anti-Pinch" clamping system makes extending the Sentinel Goalposts completely hassle-free!

With more prominent red and white sections, the kit is highly visible from distance, with a stronger glass fiber tube insulated to over 75kv.

Easy to use Hand Clamps

No tools required locking hand clamps

Quick-release clamps on each telescopic section make it a breeze to setup.

Key Applications

Roads & Bridges

Our kits can span almost any two-way road and withstand winds up to 50mph.

Overhead goalposts used before a low bridge


Made from non-conductive fiberglass making them ideal for warning against overhead electrical cables.

Non-conductive overhead goalposts used before electric powerlines

Construction Sites

Use to deploy limited height access entrances and exits to your project.

Non-conductive overhead goalposts used on a construction site

Water Fillable Metro Ballast Base for Sentinel Goalposts

Base Options

Water Fill Metro Ballast Base

The new plastic ballast base is the best option for short to medium timeframes as there are no fixtures or fittings needed by filling the Metro ballast base with 27 gallons of water to yield 242lbs in weight for heavy stability.
Constructed from polyethylene, it is extremely resilient and allows for continual use in harsh environments. Each unit is water tested in production before despatch.

Water Fillable Metro Ballast Base for Sentinel Goalposts

Fixed Galvanized Steel Base

If you require a fixed long-term solution in multiple places and only move the Telescopic Poles for the project location you're working on. The base has four 1/4" mounting holes to anchor the base in position.
Please note: you must always fix this base down through the 4 accessible holes before use.

Fixed Galvanized Steel Base for Sentinel Goalposts

Contact Options


All kits come with our reliable 82ft length of bunting.

This restriction method comes as in red and white color as standard, they are highly visible to anyone at a distance. The bunting impressively copes well in many conditions, but for a more secure method of height restriction.

Sentinel Goalpost Bunting/Ribbon Bundled


The crossbar is the most secure method of the overhead height restriction.

In harsher weather conditions, the crossbar can be more effective than bunting with more positive confirmation on contact. The pole is made from fiberglass, and functions in the same way our standard telescopic poles do.

Sentinel Goalpost Crossbar

What's in each kit & how to order more parts

Use the table below to view each individual part that makes up a kit. Each part can be ordered separately by clicking on the product photo or code.

Product 13419 13416 13415 13418
KIT 1 1 2
KIT 2 1 2 1
KIT 3 1 2
KIT 4 1 2 1
Bunting and Steel Base Bunting and Steel Base Bunting and Steel Base Bunting and Steel Base
Contents 2 x Telescopic Poles (6ft-24ft)
1 x 82ft of Hi-Visibility Bunting/Ribbon
1 x Galvanized Steel Base 1 x Metro Ballast Base 1 x Telescopic Crossbar (6ft-25ft)

Looking For Advice?

Contact our sales line on (800) 671-9662 to speak to our sales team about this Goal Post height restriction warning system.


Product may cause serious injury or death. Only use Telescopic Poles with a filled Metro ballast base or an anchored Galvanized Steel Base.

Always refer to product guide and advisory notes before setup or installation.

 WARNING: This product can expose you to chemicals including styrene, which is known to the State of California to cause cancer.
For more information go to www.P65Warnings.ca.gov


ExactPhoto ✔ (The photos are of the actual product type that you are ordering)
ExactSpec ✔ (The specification has been independently checked for accuracy)
Conforms HSE GS6 Compliant
Diameter Smallest Telescopic Pole Diameter: 1.2", Largest Telescopic Pole Diameter: 2"
Length Telescopic Pole: 71-288", Rigid Crossbar: 72-300", Bunting: 984", Metro Block: 19.5 x 19.5 x 21", Metal Base: 19.5 x 19.5 x 19"
Per Unit Bunting: 0.6lbs, Metro Ballast Base: 19lbs, Metal Base; 29lbs, Rigid Crossbar: 8.6lbs, Telescopic Poles: 7lbs
Color High Visibility Red and White alternate sections with Black bases
Type Poles: Fiberglass with Nylon hand clamps, Metal Bases: Powder Coated Steel, Metro Block: Polyethylene
Customization Custom signage available e.g. 'Caution Overhead Structures' and 'Live Wires Overhead'


Q & A

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30 Industrial Rd,
Cumberland, RI 02864


(800) 671-9662


(877) 405-6983


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