According to the regionalisation by Jerzy Konradzki of physio-geographic Poland from the West of Beskid Sądecki is the valley of the Dunajec which separates the mountain range from the Gorce Mountains, and from the North-Western point from the Island Beskids. From the North the range borders the Sądecka Structural Basin. In the North-Western point the range neighbours Kamienica Nawojowska valley, Krzyżówka Mountain Pass, Mochnaczka, the Northern part of Muszynki valley and Tylicka Mountain Pass are the border with the Low Beskids mountains. The South-Western border with the Pieniny is made by the Dunajec, the Grajcarek valley, Biała Woda and Rozdziela Mountain Pass, the limestone rocks in the Northern part of the river bed of the Biała Woda, mean that actually this region should belong to the Małe Pieniny. On the Slovak side of the mountain range from the Rozdziela Mountain Pass the border lies through the valley of the streams Rozdziel and Wielkie Lipki, when the steep South-Eastern ridges of the Čergov mountain range links with the Spišsko-šarišské medzihorie. The Southern border with the Leluchowskie Mountains and Čergov mountain range makes the Smereczek stream in the valley, and later the ridge carves out the river basin for the river Topľa.