Description
Configurable off the shelf in 1 to 17 treads in a continuous pair, Dual Stringers can cover up to
3150mm in vertical height.
Suitable for interior or exterior applications, Dual Stringers are robust and weather resistant, hot-dip galvanised for maximum corrosion resistance.
Features
Designed with walking comfort in mind, Dual Stringers have an incline angle of 35 degrees with steps placed at a consistent 175mm rise allowing for a ‘going’ distance of 250mm.
- Simple to configure design.
- Easy to install via concrete cast-in or optional bolt-down bracket available.
- Hot-dip galvanised to AS/NZS 4680:2006.
- Designed to take a maximum tread width of 1000mm.
- Rectangular Hollow Sections (RHS) of up to 5mm thickness.
- Complies with the National Construction Code^ when a minimum tread height of 50mm is used.
- Complies with AS1657:2018, engineered to the requirements of AS1170.1:2002 (up to a UDL of 4.0kPa and a point load of 4.5kN).
^ Dual Stringers comply with the requirements of the National Construction Code Volume 2 for Class 1 and 10 buildings Part 3.9.1 when installed with treads at least 50mm thick. The minimum 50mm thick tread is to meet the dimensional requirements of Figure 3.9.1.4 to prevent a 125mm sphere from passing between the treads.
Configuring Dual Stringers
To calculate the number of treads required simply:
1. Measure the vertical height from the ground to the finished floor level of the landing.
2. Divide the height by the rise of each tread (175mm)
3. Round the result to the nearest whole number, then reduce by one for the top landing. The result is the number of treads required.
For Example:
Height = 1000mm divided by 175mm = 5.71.
Rounded up to 6, then reduced by 1 = 5 tread configuration required.
Dual Stringer Product Code | Number of Treads | Vertical Height# (mm) | Horizontal Distance# (mm) | RHS Thickness (mm) | Weight Per Pair (kg) |
---|---|---|---|---|---|
G1TS G2TS G3TS G4TS G5TS G6TS G7TS G8TS G9TS G10TS G11TS G12TS G13TS G14TS G15TS G16TS G17TS | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | 350 525 700 875 1050 1225 1400 1575 1750 1925 2100 2275 2450 2625 2800 2975 3150 | 240 490 740 990 1240 1490 1740 1990 2240 2490 2740 2990 3240 3490 3740 3990 4240 | 3 3 3 3 3 3 3 3 3 3 3 3 5 5 5 5 5 | 8 14 19 24 30 35 41 46 51 57 62 67 105 113 120 128 136 |
# Measurement is for stringer only and does not include the vertical or horizontal dimension of the added step tread.
Additional Parts
Dual Stringers are supplied as pairs with tread mounting brackets. Additional parts are available on request. Fixings not included.
Contact Galintel
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