Chambers; Chamber Exits

Source: Dungeon Master’s Guide p. 291

Chamber Exits

dice: d20	Normal Chamber	Large Chamber
1-3	0	0
4-5	0	1
6-8	1	1
9-11	1	2
12-13	2	2
14-15	2	3
16-17	3	3
18	3	4
19	4	5
20	4	6
^chamber-exits