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COLA Steel Structures

The COLA structure (Covered Outdoor Learning Area) is a long-lasting, cost-effective shade solution.
Steel roof COLA structures
A metal roof or COLA structure is a very cost-effective, steel shade solution for schools needing waterproof cover to their playgrounds or sports courts. Options of the traditional gable or gentle curves mean your COLA structure can effortlessly fit in with the existing architecture.
Steel Structure Applications
Attention to detail is mandatory with metal roof structures: no bracing or sharp edges within reach, circular columns that not only look tidy, but are also safer around children’s play areas.

With spans up to 50m and lengths in excess of 100m, the COLA (covered outdoor learning area) is guaranteed to please. Curved or pitched roofing gives you design options to suit your requirements, while powder coated or galvanised steelwork provide both longevity and visual appeal. Ideal for any area including:

  • Schools
  • Shopping centres
  • Recreational areas
  • Car parks
  • Commercial applications
  • Bus shelters
  • Quadrangles
  • Playground equipment
Options for your COLA structure
Options available to enhance your metal roof structure include:

  • Skylights
  • Plumbing
  • Gable end in-fill and side skirts
  • Colourbond sheeting in your choice of 20 colours
  • Safety mesh under-cladding
  • Insulation
  • Bird proofing (box sections to provide no bird-roosting area)
  • AS approved height safety access systems.

Ring us now for an obligation free quote…    Free call: 1800 044 200

We maintain a high standard of integrity and honesty, which is why so many of our long-standing clients keep returning.


Long Term Warranty

Metal roof Shade Structures are great for covering walkways, courtyards, amphitheatres, playgrounds, seating areas and pools. When designed correctly, they are attractive, functional and economical. Steel structures are a long-term solution, often carrying warranties of 25 years plus and have almost zero maintenance requirements. Large areas can be covered with minimal columns, and yet still provide all-weather protection and exceptional durability.

Design, engineering and certification

Designing the actual layout and configuration of the structure is a very important component in achieving the desired style and functionality required. Early collaboration between the designer and engineer is critical to achieve the efficiencies and the optimal design required to make the project happen.

When you select Greenline to build your metal roof Shade structure, you get the team’s experience in designing a smart structure with efficient steelwork and durability. We often consult our engineers in the early stages, to ensure that the proposal is viable and cost-effective. Conceptual drawings are often produced, and before the structures are built, full engineering analysis and certification is completed and drawings are provided for council approval.

FREE Download

Steel COLA structure brochure pdf

Download our handy reference guide on the “Metal roof COLAs”  for your reference. (pdf)
  • Great communication, on time and perfect. Small problems were solved without fuss. Thank you

    Palmerston Primary SchoolShade sail
  • Excellent job - Great communication, looks fantastic and works well. Very impressed with the quality of work and the quality of product.

    South Wagga Primary SchoolShade sail over play equipment
  • Greenline worked in well with these jobs at Campbelltown BEC (Bike Educational Centre), with restrictions on availability to carry out the work. Thank you to your friendly staff & through work ethic.

    Campbelltown City CouncilBEC (Bike Educational Centre)
  • With the exception of the few minor issues we had with this project, I think the sails look great, you have done a good job. Council has received a lot of positive feedback from the community expressing how happy they are to have shade as well as how good the sails look. The bright colours also look great.

    Strathfield City CouncilAirey Park
  • "We were so pleased with the service we received from all at Greenline from start to finish. The guys that installed the sails were fantastic working in very tiring conditions. Service was first class from initially Cameron then Ben and finally the installers."

    Wantirna South Public School

Quality Assurance

Greenline is one of the only Australian shade companies with internationally accredited Quality (ISO 9001), Environmental (ISO 14001) and Safety (AS4801) Management Systems.

Customer Satisfaction

We strive to give you the satisfaction of comprehensive concept development, quick quote turnaround, efficient on-site installation and immediate after-sales service.

Australia Wide Installation

Greenline designs and constructs commercial Shade Sails Australia-wide, regularly completing projects in Adelaide, Brisbane, Perth, Sydney, Melbourne and Canberra.

Unlimited Design

We deliver an outstanding design and construction experience, expanding the possibilities of your outdoor space and providing solutions of true distinction.
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