I have two adjacent rooms of unequal height & width:

mesh boundary(m):

smaller: (0,8.5), (0,9.1), (0.3.0)

larger: (8.5, 17.1), (0, 9.1), (0, 9.1)

Cells seem to align well - two cells of smaller mesh match exactly

with one cell of the larger one:

larger cell size: 0.32 x 0.30 x 0.34

smaller cell size: 0.16 x 0.15 x 0.17

larger: x,y,z cells: 27, 30, 27

smaller: x,y,z cells: 54, 60, 18

pyrosim & fds errors state that the meshes are unaligned

any help to fix this error is greatly appreaciated? thanks