US Patent 11168510 Window assembly

Window assemblies and methods for their construction are disclosed. In one aspect, the disclosed window assemblies include wooden side jambs connected to a non-wooden sill assembly via intermediately positioned end caps. In some examples, each end cap includes a main body and a step defined within the main body for supporting an end of the sill assembly, wherein the step extends at an oblique angle to a length of the side jamb associated with the end cap. The provision of an angled or obliquely oriented shelf eliminates the need to mill a similarly shaped structure within the wooden side jambs.