Wrexham will host Luton Town in the first leg of their Blue Square Bet Premier play-off semi-final on Thursday, 5 May (1945 BST).
Dean Saunders' side will then travel to Kenilworth Road for the second leg on Tuesday, 10 May.
The winners will go through to the final at the City of Manchester Stadium on 21 May with a place in the Football League at stake.
AFC Wimbledon and Fleetwood are the other teams in the play-offs.
Wrexham travel to face Luton in the final game of the regular season on Saturday.