I recorded a macro with 'Relative References' and this is what I got :
Range("F10").Select
ActiveCell.Offset(0, 3).Range("A1:D11").Select
Heres what I thought : If the range selection is in quotes, VBA really wants a STRING and interprets the cells out of it so tried the following:
Dim MyRange as String
MyRange = "A1:D11"
Range(MyRange).Select
And it worked :) ie.. just create a string using your variables, make sure to dimension it as a STRING variables and Excel will read right off of it ;)
Following tested and found working :
Sub Macro04()
Dim Copyrange As String
Startrow = 1
Lastrow = 11
Let Copyrange = "A" & Startrow & ":" & "D" & Lastrow
Range(Copyrange).Select
End Sub