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Oil & gas · Plant structures

Catwalks & Tank-Farm Walkways

Walkways that link tank roofs and cross pipe runs in a tank farm: light trusses, trestles, Grip-Strut decks, roof platforms, spiral stairs and handrails.

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Allmarc 3D model · to scale
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How it is built.

Scroll: the camera moves to each part in turn and ends on the exploded view. Drag to turn it round yourself.

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01 / 07

Between two tanks

A catwalk from roof to roof on a trestle, with a spiral stair up one tank. Spans and heights follow the tank-farm layout.

Scroll to see how it is built · drag to turn it round

02 / 07

A light truss

A tubular truss that spans the gap without a heavy beam.

How is it possible at Allmarc?
HSG CNC tube laser in the Allmarc works

Used here for: A light truss

  • 4 kW
  • Tubes and sections up to 250 dia
  • Automatic loading
All our machinery
Manual MIG welding in the Allmarc works

Used here for: A light truss

  • Qualified welders, including 6G
All our machinery

03 / 07

Trestle

A braced trestle at mid-span.

04 / 07

Deck and roof platforms

Grip-Strut along the span and on the landing platforms.

How is it possible at Allmarc?
Grip-Strut walkway automation line in the Allmarc works

Used here for: Deck and roof platforms

  • Punching, embossing, edge bending, shearing
  • Single-piece planks up to 8 m
All our machinery

05 / 07

Spiral stair

Treads on brackets winding up the shell.

06 / 07

Rails everywhere

On the catwalk, the stair and round both roof edges, rolled to the tank radius.

How is it possible at Allmarc?
CNC pipe bending in the Allmarc works

Used here for: Rails everywhere

  • CNC pipe and tube bending
All our machinery

07 / 07

A kit of parts

Truss, trestle, decks, stair and rails: every member numbered, match-marked and packed in erection sequence.

Why Allmarc

Experience you can trust.

We fabricate to your drawings and prove the fit in our own bay before anything ships. Open any line for the detail.

Talk to an engineer
Structural steel at scale
  • 4 plants at Kanbha; about 6,000 T a month from November 2026.
  • Plate, sections and built-up members in house.
Trial-assembled
  • Fit-up proven in the works.
  • Match-marked for bolt-up on site.
Finished before dispatch
  • Blast, prime and paint in house; galvanised finishes on request.
  • Access steel fitted in the works.
Packed for the journey
  • Export packing we designed ourselves.
  • Shipped as numbered kits.
Start a project

Have a drawing? Let us build it.

We fabricate to your design, from plate to a packed container. An engineer will tell you honestly how we would build it.

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