Area – 4×8 or 6×9, 8×8 for sitting area, 2×3 mat for the foot of a favorite easy chair. Area rugs are used in a larger foyer, to define a sitting area, or under a bed. Room – 8×11 to 9×13, 8′ large round for some living rooms.Click to see full answer. Simply so, what are standard rug sizes?The most common rug sizes are 3’x5′, 5’x8′, 8’x10′, 9’x12′ and 12’x15′. Let’s look at how different-sized rugs can complement the furniture and decor in each room of your house. We’ll also look at how to measure floors and determine the right size rugs for the set-up in your home. what size is a 3 by 5 rug? Common Rug Sizes Chart ROOM SIZE RECOMMENDED RUG SIZE 5 x 7 feet 3 x 5 feet Shop Now ? 7 x 10 feet 5 x 8 feet Shop Now ? 10 x 12 feet 8 x 10 feet Shop Now ? 11 x 14 feet 9 x 12 feet Shop Now ? Secondly, how big is a 3×4 rug? This rug is in Excellent condition. Dimensions are 8′ 3″ X 4′ 8″ in foot and 251 X 142 in centimeter.How do you measure a rug? How To Measure: Start with the longest measurement of the rug. Move to the opposite end of the rug and read the measuring tape. Next, hook the “Zero” end of your measuring tape to one end of the shorter edge of the your rug. Move to the opposite end of the rug and read the measuring tape.