It really depends on your bun! And of course the size of your bun and the elnght of their legs.
oscar was a mini lop and had to have one for the indoor dog crate!! he bounced off the settee ok and onto my bed and upstairs although he couldnt get downstairs! He was soo tiny. Bifs bigger than he was but shes a rescue bun with a lot of fear..and shes ok jumping up on the furniture and up the first few steps and down again on our stairs..But bertie whos a french lop is huge and has very short legs,...he has got on the furniture but its a real effort for him..so now he has doggy steps! he catches his feet on the doggy crate as he cant clear it his legs are so short and his feet are so big..good job weve flat packed that months ago then!
2ft jump? isnt that bad for bunnies backs..potential for a spinal injury in some breeds especially very small or very large ones. Which goes to show..it really does depend on the rabbit!