Does the KERDI-LINE-VARIO channel and grate assembly have to be installed wall-to-wall or can it be installed in shorter lengths?

No. The KERDI-LINE-VARIO channel and grate assembly does not need to be installed wall-to-wall. It may be installed at shorter lengths as desired. End cap trim pieces are included in the kit.

Note: The shortest allowable length to cut the channel and grate is 10" (25.4 mm).