STEEL SOLUTIONS FOR Construction

Built for structures that must perform for decades

Why steel matters in construction

Steel is the backbone of the construction sector. It carries the load in structural frames, protects the building through roofing and cladding, moves water and services underground, and supports the site itself during the build. Almost nothing in a modern structure goes up without it.

For construction buyers, steel is not just a material cost. It affects structural safety, build timeline, and decades of building performance.

That is why Mareso focuses on three priorities:

Correct specification

Steel matched to the actual application, environment, and performance requirement.

Certified quality

Materials supplied from certified mill partners with proper documentation and quality assurance.

Reliable delivery

End-to-end sourcing support from specification review to production, shipment, and after-sales follow-up.

KEY APPLICATIONS IN Construction

The right product for every application.

Structural Engineering Systems
Frames, columns, beams, trusses, mezzanine floors

Structural Engineering Systems

RECOMMENDED

HR Plate / H-Beam / RHS / SHS / CHS

High tensile and yield strength for primary load-bearing structural systems

Building Exterior Systems
Roofing, wall cladding, fascias, canopies

Building Exterior Systems

RECOMMENDED

GL / GI / PPGI / PPGL

Weatherproof coatings engineered for long-term performance in tropical and coastal climates

Infrastructure & Utility Systems
Drainage, conduit, water supply, underground services

Infrastructure & Utility Systems

RECOMMENDED

GI Pipe / ERW Pipe / Black Pipe

Pressure-rated and corrosion-resistant across buried and exposed service conditions

Construction Support Systems
Formwork, scaffolding, temporary structures, shoring

Construction Support Systems

RECOMMENDED

HR Plate / Flat Bar / Mild Steel

Cost-effective, reusable grades with consistent formability for site fabrication

Finishing & Functional Systems
Partitions, door frames, stair stringers, balustrades

Finishing & Functional Systems

RECOMMENDED

CHS / RHS / PPGI / Cold-Rolled Sheet

Dimensional precision and surface quality for exposed architectural and functional elements

FEATURED APPLICATION: Building Exterior Systems

Built to perform through decades of sun, rain, and salt air

MARESO SOLUTION

Your focus is delivering a building envelope that lasts. Our focus is making sure the steel is right.

Mareso sources coated coil and structural steel from certified mill partners and manages the process from specification to delivery. We help you secure materials that meet international standards, remain cost competitive, and arrive with the documentation your project requires.

RECOMMENDED STEEL COMPONENTS

Roof sheeting

Galvalume Steel Coil (GL)
Thickness: 0.35–0.55mm Coating: AZ150 Standard: JIS G3321 ASTM A792
01

Wall cladding

PPGL / PPGI
Thickness: 0.35–0.50mm Paint: PVDF or Polyester DFT: 20–25µm topcoat
02

Purlins & girts

HR Plate / Cold-formed C & Z sections
Thickness: 1.5–3.0mm Grade: G550 high-tensile
03

Certified.

On-spec.

On time.

JIS G3321

for Galvalume steel coil

ASTM A792

for aluminum-zinc alloy-coated steel sheet

AS 1397

for continuous hot-dip metallic coated steel

EN 10346

for continuously hot-dip coated steel flat products

The right steel doesn’t just cover a building — it defines its durability.

Mareso ensures every specification is reviewed, every batch is certified, and every delivery is coordinated with care, so your envelope performs from day one through decade ten.

Build stronger, longer-lasting construction projects with steel you can trust. Let’s discuss your project.