Yes, Larson Doors can be installed in a custom frame. Larson offers a variety of door designs that are typically designed to fit standard frame sizes. However, many of their doors can also accommodate custom framing. It is important to ensure that the dimensions and specifications of the door match the custom frame to guarantee a proper fit and optimal performance. Custom installations may require precise measurements and appropriate modifications for the best result. Homeowners and contractors should consider consulting relevant product specifications and detailed installation instructions provided by Larson Doors to ensure a seamless integration with a custom frame. For specific dimensions and fitting details, it may be beneficial to visit their official website, where additional resources are available.