Standard windows for the Utilihab system are simplified by using window wall panels of standard flush panel dimensions instead of conventionally framed windows. This allows for use of off-the-shelf commercial alloy window framing profiles and hardware set in the Primary frame members and accommodates fixed, sliding, hinged, screened, and multi-pane panel styles. [need research into suitable commercial window framing lines]

For smaller casement windows, conventional pre-fab window frame units are combined with standard exterior and interior wall units in matched sets and combined with specialized 50mm 1x1 support framing.