A major factor limiting survival following extensive thermal injury is insufficient availability of donor sites to provide enough skin for the required grafting procedures. While 3:1 expanded mesh autografts have aided in better utilization of available sites, a 6:1 or greater expanded mesh graft is often accompanied by significant loss of the graft. A technique was developed in which widely meshed autograft (6:1 or greater) was covered by a 1.5 or 3:1 expanded mesh allograft to provide better take. Patients (14) were treated using this technique covering areas of 1-15% body surface area and the results compared with the take and ultimate coverage of 3:1 expanded mesh autografts. The size of burn of these patients varied between 25% total/11% 3rd degree and 98% total/95% 3rd degree (average 58%/47%). Procedures (11) were done after excision to fascia, 4 after tangential excision and 7 grafts were placed on granulating wounds. Allografts used for overlay were preserved by freezing and storage in liquid N. Epithelial outgrowth from the autograft was more rapid than from the allograft but both types took and became vascularized initially. There was an average 99% autograft take and 95% allograft take. Patients (3) had graft loss as a result of burn wound sepsis. Allografts gradually rejected 3-30 days post-grafting with the time of 50% loss averaging 14 days. Rejection of allograft was not associated with acute inflammation or loss of autograft. Ultimate cosmetic appearance and function was acceptable in all cases. This new technique offered significant advantages for grafting extensively burned patients with limited donor sites.