Your mason will love the ease with which he can build a symmetrical fireplace opening around this heavy lintel form. Once the fireplace is built, a Stoll enclosure can be mounted for a flawless fit. In-stock lintels are available in multiple sizes and can ship daily so there's no delay in the construction process. Custom lintels are ideal for existing stone fireplaces with irregular openings. Simply mortar the lintel in place and attach a Stoll glass enclosure.