Steel patio certified structural engineering drawings and details Australia


About this product

Engineering Plans Australia can provide online certification for standard patio details with maximum truss span of 8.5m. The patio detail can be constructed in a wide range of applications with a gable roof or skillion roof.


The structure classification under the Building Code of Australia for a retaining wall is a Class 10b structure. The structural engineering, drawing, details and construction specification for the patio is in accordance with the performance requirements of the National Construction Code and certified by a Chartered Professional Structural Engineer.


A Building Permit is required for patios greater than 10m2. Our certified engineering drawings are suitable for council submission Adelaide, Brisbane, Canberra, Melbourne, Perth and Sydney.


The standard patio detail has been designed to withstand wind load over and will be adequate to support the wind loads as per region A. Criteria for building requirements, development and building approval requirements are to be confirmed with the local government authority.


For other structures such as sheds, pergolas, carports, gazebos, retaining walls, fence and screen wall details, please send us a message and upload the available documentation via and one of our team members will be in touch with you within 24 hours.


How to order online

Step 1: engage an architect or building designer to produce architectural design drawings showing plan view and elevations;

Step 2: obtain advice from the relevant local government authority in relation to development approval and the building permit application;

Step 3: visit and complete the contact form where you can also upload the site plan and the architectural drawings;

Step 4: our engineering team will review the documentation provided and confirm the cost for the engineering certification;

Step 5: Order the standard certified structural engineering drawings online and receive the signed structural engineering drawings within 48 hours.


Technical specifications

Truss chords – span up to 4.0m:  76 x 38 x 1.6 patio tube

Truss chords – span up to 6.0m:  75 x 50 x 2.0 RHS

Truss chords – span up to 8.5m:  150 x 50 x 2.5 RHS

Vertical truss webs: 35 x 35 x 2.0 SHS

Columns: 90 x 90 x 2.5 SHS (up to 4m high)

Wind Region: A

Footings: engineered to site class ‘A’ in accordance with AS2870


Construction Requirements

We recommend that earthworks and site preparation is conducted in accordance with AS3798 "Guidelines on Earthworks for Commercial and Residential Developments".


Generally, this site preparation involves the removal of all organic material, rubbish, trees/stumps and back fill with clean compacted sand free of any voids. Place clean compacted sand fill to achieve the specified finished ground Levels. Compact to achieve minimum 7 blows per 300mm using a calibrated sand penetrometer and obtain compaction test certificates prior to pouring footings and retain for quality assurance.


Construct the footings as per the structural footing details. The footing detail recommended requires ongoing maintenance of the site to ensure its structural performance. Refer to CSIRO publication 10-91 “Guide to Home Owners on Foundation Maintenance and Footing Performance” for details. These recommendations and footing details provided are based on performance as defined in AS2870.


Engineering Plans Australia is a Registered Professional Engineer of Queensland (RPEQ) and can provides structural certification for projects in the Brisbane Area. We are a Registered Building Practitioner Victoria (RPBV) and can provide the structural engineering certification for projects in the Melbourne Area.


Engineering Plans Australia

Adelaide | Brisbane | Canberra | Melbourne | Perth | Sydney

Steel patio certified structural engineering drawings and details Australia