Yes full size beds and double beds are the same thing.
Double mattress sizes chart.
The following chart gives the most common mattress size dimensions in united states europe and asia region.
In addition two mattresses with the same nominal size may still have slightly different.
Choosing the right size mattress is an important decision when buying a bed.
Full size mattress measures 54 width x 75 in length and these are also commonly referred to as standard double sufficient for adults that need more room than what a twin can offer.
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Both terms refer to mattresses measuring 54 inches by 75 inches.
Queen and king are almost always 79 inches long.
For example a twin bed in real world dimensions is usually 38 x 74 or a double is 53 x 74.
Though the word double would suggest that a full or double bed is twice the size of a twin single mattress that s not the case.
If you are in a relationship this may not be the best choice for you as the fit will be exceedingly tight.
Most mattresses today are still primarily hand made which will always lead to variances.
A full mattress is 15 wider than a twin bed but the same length.
Nearly all mattress sizes are rounded up.
Standard bed sizes are based on standard mattress sizes which vary from country to country bed sizes also vary according to the size and degree of ornamentation of the bed frame dimensions and names vary considerably around the world with most countries having their own standards and terminology.