Deciding the correct size of the Rug

Decide the correct size of the Rug you will require for the room.
For the most part there is no damage in having the front legs of a seat or couch on the rug and the back legs off. (Furniture can definitely be fully on the rug too, and squared up)

​You in all likelihood will need to take into consideration a bit of hardwood floor or of covering (or tile or whatever your floor is made of) to appear on all sides of the rug. Along these lines, for example, if the space in which you might want a rug is 12 feet by 16 feet, you may choose a rug that is 9 by 12 feet, therefore considering one and a half or two feet of floor around the rug.
In any case, don’t be too rigid about the size you require. Many people make the process of finding a rug almost impossible by hitting on an exact size and insisting on it. If you can, come up with a range of sizes that are possible. You will vastly increase the number of rugs from which to choose. Consider, for instance, that ordinarily there is no harm in having the front legs of a chair on a carpet and the rear legs off. Being flexible about size may mean the difference between winding up with a carpet that “works,” and one that you really love.

The classic Oriental rug sizes are:

• 3 ft x 5 ft
• 4 ft x 6 ft
• 5 ft x 7 or 8 ft
• 6 ft x 9 ft
• 8 ft x 10 ft
• 9 ft x 12 ft
• 10 ft x 14 ft
• 12 ft x 15 ft
• 12 ft x 18 ft​

European size are way off, and now most rugs come a few inches less or more, most of the times smaller than the chart above.

Persian rugs do not follow the above standard, but sizes are pretty much close.

---