Office Towers and High-Rises

ADF Group has successfully delivered several projects for the design and engineering of connexions, the fabrication and the installation of steel structures and complex and heavy steel built-ups for high-quality office towers and skyscrapers in North America, including more than a dozen in New York alone.

Several of these multipurpose buildings house offices, condominiums, shops and restaurants, as well as some spectacular large halls, which usually feature specific geometry and architecture and are subject to special requirements and strict tolerances.


DCM Erectors


Maki and associates /AAI Architects


Leslie E. Robertson Assoc.

ADF Group was awarded four contracts in the scope of the World Trade Center reconstruction in New York, of which the contract for the supply of the steel, the fabrication and the delivery of an important portion of WTC Tower 4 (4WTC), rising 65 stories. ADF mandate included, among others, the fabrication of standard steel structures and heavy steel built-ups, such as built-up box girders, reaching up to 75 feet long and weighing 22 tons each, as well as large trusses made up of jumbo sections (i.e. W14X730, W14x426) some of which weigh 180 tons each. First assembled in the plant, these were shipped to the WTC site in sections.