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FTI Group blog

Here you’ll find a range of articles that detail topical industry information and product news

Preformed stairs vs. in-situ concrete stairs

With over 20 years’ experience with prefabricated formwork systems, we’ve come up with this comparison for you to compare preformed stairs vs in-situ stairs.


» it’s typically the cheapest method on paper
» it’s a well-established construction method that’s been used for many years

» it’s very labour intensive & can take a long time.
» the method can be easily out of tolerance (at around +-20mm)
» it tends to create a lot of waste with stripping the formwork


» stairs that are preformed typically speed up the construction by 70-80%
» handrails can be fitted before the stairs are installed, providing immediate edge protection & a safer site
» an in-built screed fold ensures you have level, accurate treads every single time.
» it’s built to very, very high tolerances (+-2mm/3mm)
» the long-term costs are much cheaper & with handrails included in the package you have less trades onsite.
» it comes with a full design package

» it can seem expensive
» it’s an innovative construction method that many are unfamiliar with

So there you have it… preformed stairs vs in-situ concrete stairs.

If you’d like to know more about preformed stairs please call our office on 1300 751 701 



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Finding a supplier you can rely on can be one of the hardest and most stressful decisions. It’s important to find a supplier that works well with your company and who will give you the best product and service offering. The construction industry in Australia may be booming but beneath the surface, there is much uncertainty in relation to insolvencies and wind-up notices.

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You can trust Fast Tread®
to be compliant with:

• AS/NZS1657:2018
for fixed platforms, walkways, stairways, and ladders
• AS/NZS1428.1:2009
for design for access and mobility
• AS/NZS1170.1:2002
for structural design actions
• AS/NZS3990:1993
for mechanical equipment
• AS/NZS4100:1998
for steel structures
• AS/NZS4991:2004
for lifting devices
• AS/NZS1554.1:2011
for structural steel welding
• AS/NZS4761:2001
for steel reinforcing materials

Compliance assured for your peace of mind. For more information, contact our design team.