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. In addition, two mattresses with the same nominal size may still have slightly different Full Size Loft Bed Plans. This is a project plan that details how to build a Loft Bed full-sized. The assembled bed measures 66 1/2″ in height, by 57 1/2″ wide, by 81″ long and has 48 inches of clearance beneath. A bed is a piece of furniture which is used as a place to sleep or relax.. Most modern beds consist of a soft, cushioned mattress on a bed frame, the mattress resting either on a solid base, often wood slats, or a sprung base.Many beds include a box spring inner-sprung base, which is a large mattress-sized box containing wood and springs that provide additional support and suspension for the Buy Full-Size Deluxe Murphy Bed Kit, Vertical: Beds, Frames & Bases – Amazon.com FREE DELIVERY possible on eligible purchases Buy Zinus 18 Inch Premium SmartBase Mattress Foundation, 4 Extra Inches high for Under-bed Storage, Platform Bed Frame, Box Spring Replacement, Strong, Sturdy, Quiet Noise-Free, Full: Beds, Frames & Bases – Amazon.com FREE DELIVERY possible on eligible purchases The bedrooms at our old house were about the size of shoeboxes, but at this house we have plenty of room for a king-size bed. However. The bed-shopping experience has been derailed by my ever-escalating symptoms of GFTD: Giant Fancy Thing Disease. .