Give this function a try...
Function MaxRowInUse(Optional WS As Worksheet, Optional _
FactorInHiddenRows As Boolean = False) As Long
Dim X As Long
Dim LastRow As Long
If WS Is Nothing Then Set WS = ActiveSheet
With WS
For X = 1 To .UsedRange.Columns.Count
If Not (Not FactorInHiddenRows And Columns(X).Hidden) Then
LastRow = .Cells(.Rows.Count, X).End(xlUp).Row
If LastRow > MaxRowInUse Then MaxRowInUse = LastRow
End If
Next
End With
End Function
Note: If you don't specify a worksheet in the first (optional) argument,
then the active sheet is used. The second optional argument is the
interesting one... it lets you determine whether to include hidden rows
when determining the maximum row that is in use; that is, if a hidden row
contains the maximum row, it will be ignored unless the second argument is
set to True. This allows you to get the maximum row for what you see on
the worksheet rather than for what any hidden data would return. I wasn't
sure which would be the most logical default for this second argument, so
I chose not factor in hidden rows (that is, the functions return the
maximum row for only the visible data); if desired, this can be easily
changed in the declaration headers for the function (change the False to
True).
Rick