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  3. Equipment Support Structures
Oil & gas · Plant structures

Equipment Support Structures

Table-top structures, saddles and platforms that carry vessels, drums and exchangers above grade, sized for operating, test and wind loads to the client’s design.

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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

A table-top support

A braced table carrying a horizontal drum on two saddles. Height, spans and saddle spacing follow the equipment drawings.

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

02 / 07

Heavy columns

Heavy H-columns on thick base plates, drilled and milled so the table stands level.

How is it possible at Allmarc?
Kotec newRun10DX CNC beam drilling line in the Allmarc works

Used here for: Heavy columns

Heavy profiles that need precise holes, where plasma cannot do the job: the lower structure and panel borders of a ground flare, and every bolted PEB and multi-storey frame.

  • H-beams up to 1,000 x 500 mm
  • Drills 3 faces in one pass
  • Channels, angles and box sections
All our machinery
SKDX1030 CNC end-face milling in the Allmarc works

Used here for: Heavy columns

  • Mills beam and column ends square for bolted splices
All our machinery

03 / 07

Deep girders

Built-up girders where rolled sections are not deep enough, welded on our beam line.

How is it possible at Allmarc?

Used here for: Deep girders

  • Plates matched and tack-welded
  • Automatic feed and stitch welding
  • H and I sections built from plate
All our machinery

Used here for: Deep girders

  • Full-penetration welds on built-up sections
All our machinery

04 / 07

Braced on every face

So the table does not sway under operating load or when the vessel is filled for its hydrotest.

05 / 07

Saddles

Fixed and sliding saddles with wear plates and stiffening ribs; the sliding end has slotted holes for thermal growth.

How is it possible at Allmarc?

Used here for: Saddles

In 2024 we were the only buyer of Deratech’s 20 kW, 12 m laser.

  • 20 kW
  • 12 x 3 m bed
  • Pallet changer
All our machinery
Three-roll pinch cum pyramid plate rolls in the Allmarc works

Used here for: Saddles

  • Rolls plate up to 40 mm
All our machinery
Manual MIG welding in the Allmarc works

Used here for: Saddles

  • Qualified welders, including 6G
All our machinery

06 / 07

Access to nozzles and valves

A grated platform on knee brackets and a caged ladder.

07 / 07

A kit of parts

Columns, girders, bracing, saddles and access: 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.
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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.

Send us a drawing