Certified excellence

Business management, sustainability, performance and product certifications are among the cornerstones of METRA Building; important guarantees of quality and reliability.

Every aspect of production is subjected to stringent control and constant monitoring to ensure excellence at every stage.

The quality of METRA Building products is certified by major national and international bodies, which attest to their high performance and conformity to the highest production standards.

They adapt to any architectural requirement and are characterised by great durability, high thermal performance, soundproofing, burglary resistance and state-of-the-art design.


EN ISO 9001:2015

Requirements for Quality Management System

IATF 16949:2016

Requirements for the quality management system for series production and spare parts in the automotive industry

ISO TS 22163:2017

Business management system requirements for railway organisations: ISO 9011:2015 and special requirements for application in the railway sector


ISO 14001:2015

Environmental Management Systems Requirements for the environmental management system


METRA holds the Aluminium Stewardship Initiative (ASI) certification and is a member of the ASI. A global non-profit organisation that certifies the standards of the aluminium industries with a view to environmental commitment and sustainable production.

ISO 45001:2018

Occupational health and safety management systems. Requirements and guidance for use.



Specifications for Decoration of coated Aluminium used for architectural Applications


Laying systems and products for windows and doors and new buildings complying with the requirements of UNI 11673-1 standard


Specifications for a quality label for liquid and powder coatings on aluminium for architectural applications

AAMA 2604-21

Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings

AAMA 2603-22

Voluntary Specification, Performance Requirements and Test Procedures for Pigmented Organic Coatings

EN ISO 3834-2:2021

Quality requirements for fusion welding of metallic materials Part 2: Extended Quality Requirements

EN 15088:2006

Aluminium and aluminium alloys Products for building structure applications
Technical conditions of control and delivery


Lloyd’s Register’s Rules and Regulations set appropriate standards for the design, construction and lifetime maintenance of ships, offshore units and land-based installations

RINA (naval)

Rina Rules for Testing and Certification of Marine Materials and Equipment Requirements of the Rina rules for the Approval of Manufacturers of Material


German body working to test, monitor and certify companies on the basis of national and European standards and international guidelines.


Licence according to the SVTI Prescriptions vol.1, specification 704 for manufacturing of extruded pipes for pressure vessels type 4, for gas insulated switches, switchgears and transmission lines.

EN 15085-2:2020

Railway applications – Welding of railway vehicles and their components Part 2: Manufacturer Requirements