The longer the vent, the worse idea it is.
** It would be approximately 8 to 9 ft of tubing. **
That length would not *usually* be a problem. You can read about dryer venting at the following link.
LINK > How long can my dryer vent be?
** What are some other options if this is not a feasible action? **
Since you're only in the planning stage, design the laundry room on an exterior wall and save yourself headaches down the road. If you insist on building it in the middle of the house, you should read the part about stable flooring needed under washers and the advantage of a floor drain at the following link:
LINK > Time and Money Saving Appliance Installation Tips
The Appliance Information Site