Depends on the size of the books.
A typical school bag, or "backpack" will measure anywhere between 16 inches to 18 inches tall, 12 inches to 14 inches wide, and 4 inches to 5 inches deep.
5 inches for most spread out on the cover about 3 inches
A 35 liter backpack typically has dimensions of around 20-22 inches tall, 12-14 inches wide, and 8-10 inches deep. This size is ideal for day trips, commuting, or overnight stays.
Excalibur was very long about 19 inches. And wide like 5 inches and want to say every book has a different answer. In the nother books of King Arthur. It was 25 inches long and 9 inches wide. Its all different. But the longest one I found in the book was 38 inches and 6 inches wide. It was the goody. Well you could research it. Know i have to do my computer homework good luck!!!!!!!!!!!
In the NFL and NCAA, goal posts are 6 inches wide. High school football fields usually use goal posts that are 4 inches wide.
The average width of the inside of a large school bus is about 90 inches. Small school buses range from 72 to 92 inches wide
You can get a Dora the Explorer backpack for your sister's first year at school at Toys R Us. They have a wide selection of very cute Dora the Explorer backpacks. Toys R Us has small rolling luggage also that your sister could use for her school supplies and just pull behind her.
4 inches
3 to 6 inches wide
Wide or long, 12 inches is more.
14 inches wide
About 7 and a half inches wide