Category: Stair

Tek1s stair projects at Sydney, melbourne, WA and SA.
While detailing any stair, we check compliance of stair to AS1428, AS1657 or applicable building code.

  • Stair Construction

    Steel or Timber Stair

    You want to install a stair for your builidng. Need to decide what type of construction should you use for your stair.

    Lot depends on what is the type of building, where is the stair, what is the asthetics required.

    In a residential building, probably what matters most is the asthics for a millionaire residence, cost and asthetics for a middle class house and probably just cost for a low end residential.

    (more…)

    Steel or Timber Stair

    You want to install a stair for your builidng. Need to decide what type of construction should you use for your stair.

    Lot depends on what is the type of building, where is the stair, what is the asthetics required.

    In a residential building, probably what matters most is the asthics for a millionaire residence, cost and asthetics for a middle class house and probably just cost for a low end residential.

    (more…)

    Steel or Timber Stair

    You want to install a stair for your builidng. Need to decide what type of construction should you use for your stair.

    Lot depends on what is the type of building, where is the stair, what is the asthetics required.

    In a residential building, probably what matters most is the asthics for a millionaire residence, cost and asthetics for a middle class house and probably just cost for a low end residential.

    (more…)
  • MARYMEDE CATHOLIC COLLEGE – PLANTER BOX & STAIR

    MARYMEDE CATHOLIC COLLEGE – PLANTER BOX & STAIR

    We are proud to be a part of the team in Marymede Planter box project.

    Our detailing team worked closely with architects to ensure tolerances and offsets were met without compromising design intent With a limited fabrication and erection window, our detailing team adopted a fast-track workflow using Tekla Structures for 3D modeling.

    This allowed us to provide early shop drawings for procurement and parallel review of sections still under coordination.

  • Mezzanine floor & stair handrails

    Mezzanine floor & stair handrails

    TEK1 recently completed a Mezzanine steel & stair for a prominent organization in Australia. The goal was to provide detailed support steelwork for mezzanine floor & stair including handrails.

  • Spotting the Hidden Error in an “Approved” Stair Project

    Spotting the Hidden Error in an “Approved” Stair Project

    Recently, we received a stair project that had already been detailed by another party and even approved by the design consultants. For reasons unknown, the project eventually came to Tek1.

    The scope involved a large five-flight stair with a 90° turn. We were provided with the GA drawings and assemblies prepared by the previous detailer, stamped with approvals, and instructed to simply follow the approved drawings for any RFIs raised.

    At first glance, it would have been easy to assume everything was in order. But at Tek1, we believe that blindly following drawings — even “approved” ones — is risky. Every project deserves a careful check against standards.

    The Error That Changed Everything

    During our review, we noticed a critical issue: while all risers were at 190 mm, one riser was set at just 149 mm. This not only broke the uniformity but also violated the applicable stair standards.

    We immediately highlighted this to the client. What seemed like a “small” mismatch in a single tread had major implications. To correct it, the entire stair had to be revised:

    • Riser height was adjusted to 188 mm.
    • All mid-landing RLs shifted.
    • Stringer slopes changed.
    • Handrails and support frames were reworked.

    In short, one overlooked error had a ripple effect on the entire structure.

    Lessons Learned

    Projects that land with us after being dropped by other detailers often arrive with extreme urgency, as valuable time has already been lost. But no matter how hectic the schedule, Tek1 follows one principle: check the input drawings against standards before proceeding.

    This extra step not only avoids costly errors but also ensures safety and compliance — something no deadline should compromise.

  • Plate Stringer Sprial Stair

    Expert detailiing of spiral stair with plate stringers.

    Clear drawings and set outs for easy fabrication.

    Here is and example.

    Tek1 has the experience detailing different types of spiral stairs.

    There are challenges for the fabricator. Good drawings help to reduce the issues the fabricator will be facing.

    If you want the Tekla Model for this email me.

    Spiral Stair
  • Addressing Stair Landing Slopes with Steel Modifications

    Addressing Stair Landing Slopes with Steel Modifications

    In our previous blogs, we discussed common mistakes that can occur while detailing a stair landing with slopes. You can find the link to the previous blog here: https://www.tek1.com.au/australian-standards/designing-a-multi-level-staircase-common-mistakes-and-key-considerations/


    Now, the designers have replaced precast slabs with pavers. Since pavers cannot have varying thicknesses, we were instructed to do something with the steel structure to achieve the required falls.
    The stair landing system has steel frames, 10mm plates on their top & EA support members to bolt them. The 50mm pavers are placed on top of the 10mm plates.


    TEK1 played a key role in designing the modifications, adjusting the steel supports and slopes to achieve the necessary fall. If the required slope were unidirectional, achieving it would be straightforward. However, in this case, the stair turns 180°, and the mid-landing’s fall transitions in three directions.


    Handling Slope Transitions
    The landing below Flight-02 and the top of Flight-01 are in opposite 180° directions.
    A single rectangular plate cannot connect these two slopes seamlessly.
    To address this, we introduced two triangular plates in the middle to enable a smooth transition between the slope directions.


    Structural Adjustments

    The main steel structural members remain consistent throughout the mid-landing.
    We adjusted the RL (Reduced Level) and slopes of the EA support members to match the required slope of the 10mm plates that support the pavers.


    By implementing these changes, we successfully accommodated the required falls while ensuring structural integrity and proper drainage. This approach maintains a practical and efficient solution when using pavers instead of precast slabs in stair landings.