Mike,
Not sure where in the RDU area your daughter lives, but here are places to find ERC.
If she’s near North Raleigh, as ScottM said:
Murdock Building & Portable Sawmill
Rolesville, NC
Jack Murdock
(919) 669-1859
Ncsawmill.com
If she is near Durham,
Bahama Wood
Ricky Pope
1407 John Jones...