In the USA, a standard sized bunk bed is 39 inches wide by 75 inches long. A full size bunk bed is 27” by 75”. The full sized is wide enough for one large adult or two small ones. The standard or twin size is for kids or small adults.
Bunk beds of course have one bed over another thus putting more people into the same space. Standard sized bunk beds are used to pile the kids into one room, or maybe solder in a barracks, o sailors on a boat. One company in the UK even offers triple bunk beds to pack even more kids or adults into the same space.
Full sized bunk beds can be used where space and comfort paramount like in a hunting lodge or cabin. As with all bunk beds there is a ladder to climb from the floor to the top and a rail to keep the person sleeping on top from falling out of bed. There is room enough to move about for those who toss and turn.
Bunk beds at their cheapest are made of metal while the better made, more comfortable models are made of wood. Pine of course costs less than oak. Simplybunkbeds.com list their “full over, full bunk beds” from $918 to $1,260”. The company suggests these over and under full bunk beds as ideal for girls and boys. They say boys need room to grow and girls, “From clothes, to jewelry to accessories; they take up a lot of space.” Narivoodi 90×200 is the most durable and standard one to buy. Retailers will allow you to choose some from various varieties and qualities. It will be best to go for a medium ranged and good quality bed.
The Bean Bag Store is another retailer of full over full bunk beds. They have a host of different models. Several of these models offering finely tooled wooden headboards and railings. One replaces the traditional ladder with steps. Some are the color of walnut, others flat black. One has a bookcase built into the end where the occupant can reach up and pull down something to read at bedtime.
Ikea of course has always been a low priced alternative to other furniture stores with their do-it-yourself assembly and use of lower cost materials like particle board than wood. They list their beds at $159 and up.
For do-it-yourselfers who really want to do it all themselves one company sells beds as blueprints with complete instructions from how to build your own bed using ply board, posts, dowels, and pieces of lumber. Of course you can make a fine bed this way if you use quality materials and might end up with a better product than that made by, say, Ikea if they are using lower prices materials. Plus if you are a skilled carpenter and can do it yourself you have the added benefit of shopping around for different mattresses to get a better price than with a frame and mattress combination sold all together.
Some models from this and other companies can be quite elaborate with one bed facing one way and the other turn 90 degrees in the opposite direction. On the end or underneath the bottom bed there can be storage space or even a book shelf at one end. The ends of the bed can also be decorated with fancy lattice-like adornments. Also there is the option to place a full-sized bed and the bottom and a twin sized bed on top. One eye-catching design connects each bed to the ceiling or roof using heavy hemp ropes like those used on a boat. The design is quite handsome.
Like most products sold in the USA and Canada today bunk beds can be purchased on-line. eBay, Amazon.com, and even Kmart carry these products in on-line stories. In the USA you can often avoid sales tax buying the beds this way except this is about to change with legislation pending in the congress to attach sales tax to all internet sales. One problem with buy a bed on-line of course is the delivery charge. And then there is the complication of putting it all together. Some brick and mortar stores offer the option of free-delivery and setup. This is no doubt more convenient that trying to put together a box full of pieces and dozens of bolts and screws.