The job it is listed for
A box list starts from the goods. Double wall is the stronger board, made in the UK, for heavy, fragile or stacked goods. Packaging Boxes keeps Double wall boxes as its own range so it is not picked as a larger single wall box.
The range is also the removal board. It is listed apart from single wall.
The line that is not a substitute
A larger single wall carton adds air and still has the lighter board.
Choose double wall for the weight or the stack, then the size. Do not choose it only because it sounds safer for a light item.
Bringing it in
Heavy lines and removal loads decide the quantity. Everyday single wall does not.
A Packaging Boxes basket with Double wall boxes still leaves the same day if it is placed by 3pm. The terms aim for 5.30pm the next working day. A 1 to 3 day courier is also described, depending on the lines.
Open Double wall boxes when you already know this line. The bundle quantity is on the page. Packaging Boxes will still dispatch an order placed by 3pm on the same day.