This cardboard box ramp craft can be used for cars, balls, or any toy with wheels!
My son loves anything with wheels right now. And he loves running up and down ramps. So why not combine the two? And quite frankly, some cardboard boxes are just too good to throw away! So here’s our cardboard box ramp!
I made this from a large cardboard box and some kitchen paper tubes. First I cut off the flaps from the top of the box with a craft knife.
Then I used the flaps plus the tubes (some cut in half length-ways) to create all kinds of ramps and tunnels. 
I really enjoyed figuring it all out and seeing it all come together.
I used tape to join everything together – hot glue might have been better but I worked on this for a short amount of time over a series of evenings, so tape just seemed easier.
F was delighted with his new cardboard box ramp. He spent a long time investigating all the different ramps and chutes by rolling a ball (or two!) down them.
Then I showed him that cars would work well too – and that made his day!
Ohhhh boy! I have an extra large rectangular box that my home daycare children use for dramatic play transportation vehicles. Two, three or four children can sit in it at once (depending on their size). This size box would be excellent for group cooperative play for your ramp idea!