36652 DuPont Blvd
Selbyville, DE 19975
Hours: Mon–Fri 6:30 a.m. – 4:00 p.m.
5119 N DuPont Highway
Dover, DE 19901
Hours: Mon – Fri: 6:30 a.m. – 4:00 p.m.
Teaming up with the top brands in the industry, we have one simple pledge: to get the right products into our customers’ hands as quickly and safely as possible.
State Line Building Supply carries a full range of commercial and residential construction supplies, and our crews are fully trained to deliver to commercial sites.
Our delivery fleet is dispatched from two yards: one in Dover, Delaware and the second in Selbyville, Delaware.
For more information about how to contact us, visit our Find a Yard page. Or, click the Contact Us tab to send us an email.