Average Baby Crib Dimensions

Top of crib mattress to top of side rail.

Average baby crib dimensions.

27 1 4 x 52 inches and not more than 6 inches thick usually thinner standard full size crib dimensions interior. For cribs manufactured before june 28 2011 when new retroactive safety regulations were issued for full size cribs unless the seller has written proof that the crib meets the standard above retailers should destroy any full size crib with or without drop sides and should not resell it. Standard crib mattress dimensions. Because of this variation it s important to look for the recommended mattress size listed on the crib s box and or assembly instructions.

Crib height off floor floor to bottom of mattress support. According to the consumer products safety commission a standard or regular crib mattress should be no more than 6 inches thick and measure at least 27 1 4 inches wide and 51 1 4 inches long. 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. Due to different materials frame designs and style the external dimensions of standard size baby cribs can vary by a few inches even if they belong to the same crib type.

Standard baby crib size the cpsc requires that full size baby cribs have a standard width of 28 inches and a standard height of 52 and inches but with a pull or minus factor of inches.