Natural stone flooring is durable and beautiful. No two natural stone floors are ever exactly the same; they contain random patterns that were formed before the stone was quarried and cut to a specific size and shape. Stone flooring can range in size from 1"x1" mosaic pieces to long 3-foot+ slabs, but common flooring tile sizes are 12"x12", 13"x13", 16"x16" and 18"x18". The types of natural stone most often used as floor tile are granite, marble, travertine, limestone and slate.
Typical costs:
Labor and materials to install a granite tile floor cost about $6-$22 a square foot, or $600-$2,500 for a 10'x10' foyer; premium tiles and designs can boost the total to $3,000-$5,000 or more. For details, see How Much Does a Granite Floor Cost.
Marble flooring starts around $9 -$20 for labor and materials, or $900-$2,000 for a 10'x10' foyer. High-end marble tiles can increase the installed cost up to $2,000-$9,000. For more information, see How Much Does a Marble Floor Cost.
Installation of a basic travertine tile floor starts between $6 and $13 a square foot, or $2,200-$5,100 for a 10'x10'room. Installation of higher-quality travertine (can be $8.50-$22.75 a square foot, or $850-$2,275 for 10x10-feet. For details, see How Much Does a Travertine Floor Cost.
Installing a limestone floor can cost $6-$17 a square foot for labor and materials, or $600-$1,700 for a 10'x10' room. For details, see How Much Does a Limestone Floor Cost.
Having a slate floor professionally installed can cost $6-$20 a square foot, depending on local rates, quality of tiles and complexity of the installation, or $600-$2,000 for 10'x10'. For details, see How Much Does a Slate Floor Cost.
For a distinctive touch to a custom-built high-end home with lots of open floor space, traditional poured-in-place terrazzo flooring can run $20-$80 a square foot, or $8,000-$32,000 for 20'x20'; having terrazzo tiles installed runs $12-$30 or more a square foot, or $4,800-$12,000 for 20'x20'. For more details, see How Much Does a Terrazzo Floor Cost.
Stone flooring needs to be laid carefully, and on a well-prepared surface. No matter how strong the stone is, if the tiles are not supported or are uneven, they may break or chip under pressure.
There are two basic types of edges on stone tile -- a bull-nose edge with a curved or rounded appearance, or a straight 90-degree edge for a modern look. The World Floor Covering Association provides an overview of types of stone flooring and finishes[1] .
Additional costs:
There can be extra installation-related charges for furniture removal and replacement; ripping out and disposing of old flooring material; and removing and then re-hanging doors.
Most natural stone flooring is relatively porous, and needs several coats of sealant when installed, with sealing repeated an average of every 12 to 18 months, depending on the amount of traffic and wear. Sealant averages $30-$60 a quart, or $100-$200 a gallon; stone cleaners run $10-$40 a quart. Cleaning and/or sealing a natural stone floor can cost $40-$300 or more, depending on condition and size.
Shopping for a stone floor:
In selecting a stone floor, factors to consider include the level of traffic and amount of moisture in the area where the floor will be installed, and the hardness and slip resistance of a specific type of stone. Natural stone can be cold when stepped on with bare feet, particularly at night.
Stone flooring tiles are available online and from most home improvement and flooring stores. The World Floor Covering Association provides a directory of retail floor stores[2] by zip code; most retail stores provide installation or referrals to local installers. The Marble Institute of America discusses all types of natural stone flooring, and provides a directory of natural stone distributors and suppliers[3] ; these companies typically provide installation or referrals. A few online natural stone flooring suppliers include BuildDirect.com[4] , FastFloors.com[5] , South Cypress Floors[6] and StoneLocator.com[7] .
Get several estimates, asking about the installers' training and experience, the materials to be used, performance warranties and the time required to complete the project. The Marble Institute of America offers tips for selecting and working with a natural stone contractor.
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