Concrete is a major material used in the museum's lobby; with posttensioned concrete beams extending throughout the foyer, in addition to 596 tonnes of exposed structural steel. One side of the lobby's walls are textured and patterned like rough-hewn wooden planks, whereas the other side is patterned to resemble large blocks of quarried stone. In addition to concrete, cooper that was originally used the roof of the Library of Parliament is used on the walls of the museum lobby and the LeBreton Gallery. However, most of the building's interior space remains austere, in an effort to provide visitors with a solemn space for reflection. A audio-visual presentation of what is contained inside the exhibits is situated at the access point from the main foyer to the exhibition areas.