Top of crib mattress to top of side rail.
Standard crib size height.
Compact and portable cribs are often 26 inches by 39 inches.
The standard full size crib mattress is 27 inches by 52 inches.
According to u s regulations a standard full size crib is 30 inches wide and 54 inches long.
Given frequent falls from the crib federal crib regulations have set the minimum distance between the top of the mattress support and top of the crib side rail as 26 in.
And this height must include a 6 in.
Crib height off floor floor to bottom of mattress support.
Non full size cribs may be larger or smaller but must be rigid and must not have mesh sides.
The crib s adjustable height mattress support that can be lowered as your baby begins to sit or stand plus it effortlessly adapts from crib to toddler bed daybed sofa and full size bed with or without a footboard daybed sofa rail and toddler guardrail.
27 1 4 x 52 inches and not more than 6 inches thick usually thinner standard full size crib dimensions interior.
When a mattress is used with the crib the actual height of the crib side as a barrier is 20 in.
The adjustable railing must be 26 inches above the bottom mattress at its maximum height and 9 inches above the mattress support at its lowest.
Standard crib mattress dimensions.
Internal dimensions of standard size baby cribs are regulated by the government so they are approximately the same for all full size cribs all standard size crib mattresses fit into all standard size cribs.