because diffrent companies make diffrent size mattresses or diffrent size bunk beds
One can purchase Twin Over Twin bunk beds online, on websites such as eBay and Amazon. You can also purchase these bunk beds in stores such as Ikea and Walmart. Many furniture stores that sell beds have Twin Over Twin bunk beds.
Furniture store.
Among the best bunk beds for girls are, Ethan Full over Full Bunk Beds, Columbia Full over Bunk Beds and Columbia Twin over Twin Bunk Beds. These beds provide much comfort.
Twin of full sized bunk beds can be purchased at Ikea for a bargain price. However, if one wants designer bunk beds, these can be purchased from the Ana White website.
The Logik Twin Over Twin Bunk Bed set uses two normal twin mattresses.
Most bunk beds are made so they can be separated into twin beds. You can find these at any furniture retail store. You just life the top bunk off the bottom one and it makes a normal bed.
twin bunks
Powell Shiver Me Timbers Wooden Bunk Bed, Twin is a pirate bunk bed
Two twin size mattresses can easily be joined using a create-a-king twin doubling system. The create-a-king essentially belts the two twin mattresses securely together and it also has a foam filler for the "crack" between the two mattresses. Now, the two twin mattresses won't be quite as long as a standard king size. Standard king size beds measure approximately 80" long, while standard twin beds measure 75" long. This should really be no problem and you can usually still use king size mattress pads and sheets. You can also use a regular king size metal bed frame for the two twin box springs.
There are different types of bunk beds, on the regular ones it won't fit
A person can purchase a full bunk bed that has a twin sized bed on the bottom and a single over it from several different places. Some of these include Amazon, Simply Bunk Beds, and Bunk Bed King.