Will this do?
314120
Curtains and draperies, window, made from purchased fabrics
Here's the broader description:
"This industry comprises establishments primarily engaged in
manufacturing household textile products, such as curtains, draperies,
linens, bedspreads, sheets, tablecloths, towels, and shower curtains,
from purchased materials. The household textile products may be made on
a stock or custom basis for sale to individual retail customers."
Source: NAICS codes search page
