About this asset

Designed for curved architectural openings, this quarter-circle casement window Revit family features a moulded exterior frame and glazed sash. The unit presents a distinct quarter-circle quadrant profile designed to sit cleanly within masonry or framed wall assemblies. A tiered exterior casing forms the outer perimeter, framing a robust inner sash that secures a single curved glass pane. The outer profile displays detailed step reveals and an integrated sill base, while the interior sash geometry provides a smooth offset surrounding the glazing. Its asymmetric curvature allows seamless pairing with complementary rectangular casement units or mirrored quarter-round assemblies, delivering clean lines and classical proportioning across facade elevations.

The download is a 543 KB file containing a Revit family (.rfa). Load it into a project from the Insert tab with Load Family, then place it like any other component of its category; it schedules and tags with the rest of your model.

Load the RFA component directly into your Revit project environment and insert it into standard vertical host walls. The family cuts opening geometry automatically upon placement. Adjust sill height and orientation using native flip controls, and assign bespoke project materials to the frame, sash, and glazing parameters via the Type Properties dialogue to match overall fenestration schedules and rendering requirements in Enscape or V-Ray.

This specialty window unit suits custom residential villas, period renovations, and boutique hospitality facades where traditional radial fenestration is required. Often specified above standard rectangular windows, entry transoms, or gable peaks, it serves as an elegant accent feature in stairwells, master bedrooms, and vaulted living areas. Specifiers commonly search for radius casement units, arched transom glazing, and shaped fenestration assemblies when detailing elevations and schedule sheets during developed design and construction documentation phases.