Granite countertops are a popular choice for kitchen and bathroom remodeling projects due to their beauty, durability, and resale value. Granite is an attractive natural stone that adds elegance and sophistication to any space. When selecting granite slab counters, it’s important to understand the different sizing options, price ranges, and proper installation techniques to ensure you get the high-quality finished product you desire.
Slab Sizes and Layout Options
Granite slabs are cut from large blocks of natural stone into standard sizes for fabrication into countertops. The most common thicknesses for kitchen counters are 2 cm (3/4″), 3 cm (1 1/4″), and 4 cm (1 1/2″). Bathroom vanity tops can sometimes be a thinner 1.2 cm (1/2″).
For width, standard sizes range from about 26 inches for a small vanity up to 110 inches for a large kitchen island. Common widths are 30″, 40″, 60″, 96″, and 108″. The slab length is usually about 6-10 feet.
When planning your kitchen or bath layout, consider the total square footage needed to cover all countertops. Allow an extra 10-15% for cutting seams and overhangs. Your granite supplier can help optimize the slabs to minimize seams and waste.
Some popular slab layout options include:
- Full Slab: Using a single large slab with no seams for smaller countertops spaces. This provides a seamless look.
- Modular: Using multiple rectangular slabs cut to size. Seams are straight and fairly inconspicuous.
- L-Shaped: Using an L-shaped slab for a continuous counter look. The seam is hidden in the corner.
- Waterfall: Extending the granite slab to the floor for a dramatic look. Often used on islands.
- Cut-Outs: Cutting custom shapes from the slab for sinks, cooktops, etc.
How Much Granite Do I Need?
To estimate how much granite you need, measure the total linear feet of each counter section. Multiply the linear footage by the depth to get the square footage. For example:
- 10 linear ft of 24″ deep countertop = 10 x 2 ft = 20 sq ft
- 15 linear ft of 36″ deep island = 15 x 3 ft = 45 sq ft
- Total estimated slab footage = 20 + 45 = 65 sq ft
Add 15% for overhangs and seaming. For the example above:
- 65 sq ft x 1.15 = 75 sq ft
So you would need to purchase approximately 75 sq ft of granite slabs. Your granite supplier can help with exact measurements and layout.
Granite Prices Per Square Foot
Granite is priced by the square foot, but many factors affect the total cost. Expect to pay:
- Economy: $40-$70 per sq ft for basic granite colors and styles.
- Mid-Range: $70-$120 per sq ft for most popular granites like Ubatuba, Santa Cecilia, Baltic Brown.
- Premium: $120-$200+ per sq ft for rare/imported granites like Blue Bahia, Taj Mahal, Copper Canyon.
Some things that influence price:
- Stone Color/Rarity: Unique/exotic granites are more expensive. Whites/creams often cost more.
- Finish: Honed (matte) costs more than polished (shiny). Other finishes like leathered or flamed add cost.
- Edge Profile: Simple eased or straight edges are lowest cost. Decorative ogee, chamfered, or beveled edges increase price.
- Thickness: Thinner slabs (2cm) are cheaper than thicker (3cm+).
- Fabrication: Simple slab layouts cost less than complex cut-outs or edge details.
- Regional Labor/Installation: Prices vary by geographic area.
To get an accurate quote, have your slab measurements and chosen granite color/finish. Reputable suppliers should provide a detailed bid. Beware very lowball quotes that seem too good to be true.
Installation Process and Cost Factors
Proper installation is crucial for ensuring your granite countertops last for many years. Here is an overview of the installation process:
Template and Measure: The installer will come measure the existing cabinets/vanities and create a template. This is used to fabricate the slabs. Cost is typically $150-$300 depending on project scope.
Fabrication: Slabs are cut to size, edges finished, holes cut for sinks, etc. Fabrication shop cost is often $200-$500.
Delivery: Counters are transported to site ready for install. May have a delivery fee $100-$300.
Installation: Granite is secured to cabinets with adhesives, screws, and any clips needed. Installers charge $50-$100 per hour. Typical install time is 6-12 hours.
Sealing: Granite is sealed to prevent staining/etching. Sealer cost $50-$150.
Miscellaneous: Any plumbing or electrical adjustments needed. Per hour fees apply.
Total: Expect to pay $2,500-$6,500+ for materials, fabrication, delivery, and professional full-service installation of granite countertops. Get an itemized quote.
Choosing Your Granite Slab
Choosing the right slab is key to achieving the look you want. Visit a stone supplier to view slabs in person. Things to look for:
- Color Consistency: View the full slab to ensure an even color distribution with no dark/light patches or wide variation.
- Stone Pattern: Look for desirable veining, movement, and overall pattern. Granites vary widely in appearance.
- Surface Quality: Examine for pits, cracks, or rough spots. Higher quality slabs have few surface flaws.
- Fit with Cabinets: Imagine how the granite will look in your space. Bring cabinet measurements and room photos.
- Uniqueness: Pick a special slab that others won’t have. Granite is a natural product so no two pieces are exactly alike.
- Edges and Cut-Outs: Discuss your desired edge profiles and any sink or cooktop cut-outs.
Take your time selecting the perfect slab for your home. Ask about additional costs for special cut-outs or edgework during fabrication.
FAQ About Granite Countertops
Here are answers to some frequently asked questions about granite slab counters:
How durable and heat resistant is granite?
Granite is very durable and can last a lifetime with proper care. It has high heat resistance and can tolerate hot pots and pans. However, sudden temperature changes can cause cracks so always use trivets.
Does granite need to be sealed?
Yes, granite is porous and sealing is highly recommended to prevent staining and etching from liquids. Reapply sealer every 1-2 years.
Is granite susceptible to damage or scratches?
Granite is very hard and scratch resistant. However, heavy impacts can chip the surface. Always use cutting boards and take care not to drop heavy objects.
Can granite harbor bacteria?
Unsealed granite can absorb bacteria from spills. But properly sealed and maintained granite does not pose a significant health risk. Simply clean frequently.
How often does granite need to be polished or refinished?
In a residential kitchen, granite may never need polishing. For a worn or hazy finish, professional refinishing may be needed every 3-10 years.
Is granite prices cheaper than quartz or marble?
On average, granite is less expensive than quartz but pricier than marble. However, prices vary widely based on specific materials chosen.
What are the different finishes for granite edges?
Common finishes include polished, eased, straight cut, beveled, ogee, and chamfered. The edge profile impacts the aesthetic and price.
Can existing countertops be resurfaced with granite?
Yes, granite can sometimes be installed over old countertops. This depends on the existing counter material and condition. Risk of cracking is higher.
Choosing a Granite Countertop Installer
Carefully choose your granite installer, as proper installation is crucial to the final result. Tips for selecting an installer:
- Review their portfolio of past granite projects to assess quality of work.
- Ask how long they have been specializing in granite installation. Look for many years of experience.
- Ensure they are licensed, insured, and will pull any required permits. Ask to see documentation.
- Get references from prior clients and view examples of completed jobs.
- Verify they fabricate their own granite or use reputable fabrication shops.
- Get a written contract detailing timeline, warranty, payment terms, etc.
- Ask questions and make sure you are comfortable with their knowledge and customer service.
- Confirm they will handle plumbing and electrical adjustments as needed.
Take time to thoroughly vet potential granite installers. A true professional should handle the entire process seamlessly.
Caring for Your Granite Countertops
Granite is quite durable, but proper care is required to keep it looking pristine:
- Wipe up spills immediately to prevent staining. Acidic substances like wine or fruit juice can etch the surface.
- Clean frequently with a mild pH-neutral stone cleaner. Avoid abrasive cleansers.
- Reseal the granite every 1-2 years using a quality impregnating sealer.
- Use trivets or hot pads under hot pans. Rapid temperature changes can damage granite.
- Cut only on designated cutting boards, not directly on the counter.
- Don’t sit or stand on your counters. The heavy impact can cause cracks.
- If hiring house cleaners, ensure they use appropriate granite-safe products.
- Inspect annually for signs of needed repairs like cracks or resealing. Address issues promptly.
With regular care and maintenance, your natural granite counters can stay looking fantastic for a lifetime.
Conclusion
Granite slab countertops provide classically beautiful and durable work surfaces that can enhance any home’s decor. Paying attention to proper sizing, color selection, fabrication, installation, and maintenance will help ensure you get the most out of this natural stone investment. Taking the time to understand costs, plan your layout wisely, and choose specialists with proven expertise can help you avoid unexpected issues. With the right granite counters professionally installed, you can enjoy a kitchen or bath remodel that provides lasting function, style, and pride of ownership for decades to come.
