Structural Excellence & In-House TinySteel Manufacturing

Raw Material & Quality Control

At We Build Tiny, the durability of our homes and Tiny Houses begins with the careful selection of raw materials. Our LSF structural steel is produced internally by our brand TinySteel, using certified European steel.

Engineering & In-House Manufacturing

Certified and Protected Structural Steel

We use S280GD + Z200 galvanized structural steel, certified according to European standard EN 10204 3.1. Through our sister brand TinySteel, we ensure absolute control from the steel coil to the cold-formed ready-to-assemble profile.

With a Z200 protective galvanization layer and a tested yield strength exceeding 315 MPa, we guarantee LSF profiles with high mechanical resistance, effective corrosion protection, and maximum precision for durable modular structures.

Certificate 3.1 (EN 10204)

Steel Partner: Gonvarri / ArcelorMittal Spain

Standard & Traceability: EN 10204 3.1 with strict testing

Steel Grade: S280GD (High Strength)

Coating: Z200 MAC (200 g/m² Zinc)

Profile Dimensions: Thickness 0.8 | 1.0 | 1.5 mm | Width 180 mm

Laboratory Testing

Technical Specifications & Mechanical Properties

Certified data obtained through tensile testing and batch chemical analysis.

Tensile Properties

Superior mechanical strength proven in laboratory tests.

Yield Strength (Re): 316 N/mm² (Required: 280)
Tensile Strength (Rm): 368 N/mm²
Elongation (A%): 34.0% (High Ductility)

Chemical Composition

Controlled alloys for long-term structural stability.

Carbon Content (C): 0.0567%
Manganese Content (Mn): 0.1840%
Purity Guarantee: Low impurity content

Anti-Corrosion Protection

Advanced Z200 galvanization for demanding environments.

Zinc Mass: 200 g/m² (Z200 MAC)
Coating Thickness: Optimal adhesion & protection
Expected Durability: > 50 years without degradation

Certified Supply Chain

Excellence Partners & Brands

We work in partnership with global and local market leaders to ensure rigorous quality standards in every construction detail.

TinySteel

In-house LSF Mfg

Precision robotic engineering and cold-formed profiling (LIIG Group).

ArcelorMittal

Certified S280GD Steel

World-leading steel raw material with EN 10204 3.1 certification.

Gonvarri

Steel Service

High-performance processing and Z200 galvanization center.

Casa do Ribeiro II

Materials & Finishes

Trusted regional partner for building materials and construction support.

Sópainel

Panels & Insulation

Advanced thermal insulation, acoustic solutions, and sandwich panels.

Leroy Merlin

Materials & Finishes

Reference in interior finishes, woodwork, and home equipment.

Hengwang Equipment

Industrial Equipment

Heavy machinery and lifting equipment for safe assembly and logistics.

Hener RFM

Specialized Cold Roll Forming Systems

Specialized systems and high-strength hardware for construction.

Want to know more about our LSF engineering?

Visit our production center at Polo Industrial da Gemieira in Ponte de Lima or request a detailed proposal for your project.

Request Quote