How about just using something Paul suggested and saying:
Range("B2:T" & lastrow).Select
The other way, using .Cells, works too, but if you want to specify B2 thru
T<lastrow>, you've got to use:
.Range(.Cells(2, 2), .Cells(lastrow, 20)).Select
It goes .Cells(Row, Column), not .Cells(Column, Row).