LYSAGHT TOPSPAN® 61 is a 61mm deep profile used in the smaller framed shed and awnings market and is a convenient size to satisfy the niche market need of a section between a small purlin and large batten.
It is popular in the residential and rural markets and has found other applications such as framing, long-span plasterboard battens, fencing and handyman applications. It is commonly called a "garage batten".
The bottom flanges have two longitudinal stiffeners/grooves for improved performance, but also act as a guide for the correct positioning of the fixing fasteners. Lapping (structural) is simple and will ensure continuity and straightness and further improve the capacity of the configuration. The lapping results in a precise snug fit without deformation of the profile and only nominal step at the lap.
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LYSAGHT TOPSPAN® 61 light steel sections are made from ZINCALUME® steel (aluminium/zinc alloy coated) complying with AS1397, G550, AZ150 (550MPa minimum yield stress, 150g/m² minimum coating mass).
| Thickness (BMT, mm): | 0.6 | 0.75 | 1.0 | 1.2 | |
| Yield Strength (MPa): | 550 | 550 | 550 | 500 | |
| Coating Mass (g/m²): | 150 | 150 | 150 | 150 | |
| Mass (kg/m) |
0.95 | 1.18 | 1.56 | 1.87 | |

For spanning information please download LYSAGHT TOPSPAN® Light Gauge Steel Sections (603 KB)
LYSAGHT TOPSPAN® sections are availabile in all states.
Yes. though for detailed availability you should refer to your local BlueScope Lysaght branch or distributor. Generally, it is sold as stock lengths of 7500mm.
The main reason for this is the specially engineered shape of the LYSAGHT TOPSPAN® section.
The size of the cantilever is 10% of the adjacent internal span, or 350mm, whichever is the lesser. Please note that the LYSAGHT TOPSPAN® 61 must be one continuous length from internal span to the end of the cantilever.
LYSAGHT TOPSPAN® 61 light steel sections are made from ZINCALUME® steel (aluminium/zinc alloy coated) complying with AS1397, G550, AZ150 (550MPa minimum yield stress, 150g/m² minimum coating mass).
| Thickness (BMT, mm): | 0.6 | 0.75 | 1.0 | 1.2 | |
| Yield Strength (MPa): | 550 | 550 | 550 | 500 | |
| Coating Mass (g/m²): | 150 | 150 | 150 | 150 | |
| Mass (kg/m) |
0.95 | 1.18 | 1.56 | 1.87 | |

For spanning information please download LYSAGHT TOPSPAN® Light Gauge Steel Sections (603 KB)
LYSAGHT TOPSPAN® sections are availabile in all states.
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