Fastest time to cram into a box is 4.78 seconds achieved by Skye Broberg at Melia Whitehouse Hotel, London on 15 September 2011. The dimensions of the box into which Skye crammed are 52cm x 45cm x 45cm.
Once Skye's body was entirely inside of the box, the lid was closed from the outside. The clock was stopped once the lid was closed.