Dell laptops are delivered in their standard box — laptop + packing material + box. It is NOT double-boxed.
Delivery is usually via FedEx or UPS with signature required.
FYI, it’s usually better to order Dell products over the phone. To close the sale, you can save a little money and they usually give you free s/h.
On rare occasions it’s better to order on the website — when something is like 30–40% off. But that’s rare and usually the phone salesperson can match .. usually.
Before you buy, check Microsoft Store. Sometimes Dell laptops are cheaper there than direct from Dell. Go figure.