STUBAI - Double Seaming Iron 140 mm | Professional Sheet Metal Tool for Precise Double Standing Seam Work

✔ Precise initial and final seaming of double-lock standing seam profiles for clean, watertight joints
✔ Angled, polished working surfaces for burr-free, controlled results in everyday use
✔ Hardened 25 mm and 35 mm prisms for precise guidance and powerful force transmission
✔ Ideal for zinc, copper, and aluminum in professional roofing and façade construction
✔ Robust professional quality made from C45 carbon steel – durable, hard-wearing, and reliable

Maximum precision for clean double-lock standing seam work

The STUBAI - 140 mm double-lock seaming iron is a high-quality sheet metalworking tool for demanding work in modern metal construction. If you want to shape, re-seam, or neatly close double-lock standing seam profiles with precision, this professional tool is the right choice. Especially for fine details on roofs, at joints, or in façade cladding, the double-lock seaming iron delivers controlled force transmission and precise guidance.

Thanks to its substantial weight of 3400 g, the tool works particularly efficiently. You achieve clean seam edges and consistent results, along with excellent watertightness in the finished seam. This model is a true classic for professionals in roofing supplies, sheet metalworking supplies, and metalworking.

Specialist use in sheet metalworking and roofing

The STUBAI double-lock seaming iron is used specifically for initial seaming, re-seaming, and shaping double-lock standing seam profiles. It is especially suitable for work on already installed sheet metal, when machines or larger tools can no longer be used. The angled, polished working surfaces sit neatly against the sheet metal and reduce the risk of material damage.

Ideal for precise finishing on installed components

Particularly at transitions, edge finishes, flashing joints, and detail points, the utmost accuracy is essential. This is where the double-lock seaming iron excels. Its stepped prisms provide secure guidance across different seam levels and help you close the double-lock standing seam cleanly and precisely. 

Technical details at a glance

Length: 140 mm
Width: 80 mm
Weight: 3400 g
Material: hardened C45 carbon steel
Prism heights: 25 mm and 35 mm
Working surfaces: polished and angled at 5–7°
Applications: initial seaming, re-seaming, shaping double-lock standing seam profiles
Suitable for: zinc, copper, and aluminum

Why the STUBAI double-lock seaming iron is worth it

If you value precision, durability, and clean results, this sheet metalworking tool is the right investment. It supports you in everyday work on the roof, in the workshop, and with high-quality façade cladding.

At the roofing shop from your Roof specialist Roofify, you'll find professional sheet metalworking supplies and top-quality roofing supplies for true professionals.