Granite Countertops Cost: What Actually Drives the Price

Granite countertops cost more or less depending on five things: the slab you choose, how many square feet you need, the thickness and finish, the edges and cutouts, and how easy your home is to work in. Price lists can't tell you much, because granite is quarried stone. No two slabs are the same, and the slab you pick counts for more than anything else.

I've cut and installed granite, marble, quartz and other stone for more than 20 years, and the question I hear most is some version of "why is my granite quote so different from my neighbor's?" This guide walks through the real cost drivers so you can read a granite quote line by line. If you are also pricing quartz, which is what we fabricate at Griffin Quartz, our quartz countertops cost guide covers that side in detail.

What Affects Granite Countertops Cost the Most

Every granite quote is built from the same pieces: material, fabrication, installation and extras. The material is where granite varies most, so it deserves the closest look.

Slab grade, color and rarity

Granite colors range from widely quarried stones that suppliers keep in stock all the time to rare stones cut from a single quarry in small runs. The rarer the stone, the higher the slab cost. Movement also plays a part. Slabs with bold, flowing veins or large crystals usually cost more than evenly speckled ones, because fewer blocks come out of the quarry with that look.

Where the stone comes from

Many popular granites are quarried overseas and shipped as finished slabs. Freight, import handling and the distributor's warehouse all end up in the slab price. That's one reason the same color can cost different amounts at different yards.

Slab yield and waste

With granite you buy whole slabs, not square feet. If your kitchen needs a little more stone than one slab gives you, you pay for a second slab, even if much of it ends up as offcuts. Natural fissures, pits or a strong pattern that has to run in one direction can also reduce how much of each slab is usable. A good fabricator lays out your pieces on the actual slabs before cutting, which is where yield gets decided.

Granite Countertops Cost Per Square Foot vs Per Slab

You'll see granite advertised per square foot, but the math behind it starts with slabs. The fabricator works out how many slabs your layout needs, adds fabrication and installation, and then may express the total per square foot so you can compare it with other quotes.

That's why a per-square-foot figure only means something next to your actual layout. A long galley kitchen with no island may fit neatly on one or two slabs. An L-shaped kitchen with a deep island may need an extra slab just to avoid a seam across the island top. Same square footage, very different slab count.

Granite Countertop Installation Cost: Fabrication and Labor

Once the slab is chosen, the work starts. Most fabricators quote granite installed, so these steps are usually folded into one price, but it helps to know what's inside it.

• Templating: the fabricator measures your cabinets and walls so every piece fits. Out-of-square walls, common in older South Florida homes, take more care.
• Cutting and edging: a simple eased edge is typically the standard. Decorative profiles such as ogee or a mitered edge take more machine and hand time. Our countertop edge profiles guide shows the options.
• Cutouts: each undermount sink, cooktop and faucet hole adds fabrication time.
• Seams: granite with heavy movement needs careful layout so the pattern flows across seams, which adds time in the shop.
• Installation: slabs are heavy. Crew size, carrying distance and stairs or elevators all change the labor involved.

Thickness and finish

Granite is commonly sold in 2cm and 3cm thicknesses. Thicker slabs cost more to buy and weigh more to carry, but they can often be installed without a plywood subtop or a laminated edge. A polished finish is typical. Honed and leathered finishes are available on some stones and can change the price. Our countertop thickness guide explains where each thickness makes sense.

Extras That Change a Granite Quote

These items are often priced separately, and they are where quotes that look similar at first start to differ:

• Removing the old countertops and hauling them away
• Plumbing: disconnecting and reconnecting the sink, faucet and disposal
• Cooktop work: gas or electric cooktops should be disconnected and reconnected by a licensed professional
• Backsplash: a full-height stone backsplash uses more slab
• Cabinet repairs or leveling so the stone sits flat
• Sealing, if your fabricator recommends it for your stone

For a replacement job, our guide to the cost to replace kitchen countertops covers the tear-out side in more depth.

South Florida Factors in the Cost of Granite Countertops

A few local conditions come up again and again on jobs from Jupiter to Aventura.

Condo access. High-rise buildings often need freight elevator reservations, a certificate of insurance and set work hours. Some stone pieces are too long for a service elevator and have to be cut with an extra seam. That affects both the layout and the labor.

Older homes. Many older homes have walls and cabinets that are out of square or out of level. Scribing stone to a wavy wall or shimming cabinets is extra work.

Outdoor kitchens. Stone for a lanai or pool kitchen faces sun, rain and humidity most of the year. Material choice and sealing matter more outdoors, and the install can involve masonry or block bases instead of cabinets.

Is Granite Cheaper Than Quartz?

It depends on the specific stone and the specific quartz color. Common granites can price below many quartz colors, while exotic granites can pass designer quartz. Fabrication and installation work is broadly similar for both, so the difference usually comes down to the material.

What doesn't show up on install day is upkeep. Granite is porous. The Natural Stone Institute says most granite countertops don't strictly need sealing, but many benefit from it, so many owners seal and reseal over the years. Engineered quartz is non-porous, and manufacturers such as Cambria say it never needs sealing. Quartz also comes in consistent colors, so you can choose from a sample without driving to a stone yard to pick out your slab. For a full side-by-side look at durability, maintenance and appearance, read our quartz vs granite comparison, or see how the main surfaces compare on our countertop materials page.

How to Compare Granite Countertop Quotes

Before you sign, line up your quotes and check that each one answers these questions:

1. Which exact stone, and how many slabs, is the price based on?
2. What thickness and finish?
3. Which edge profile is included, and what do upgrades cost?
4. How many cutouts are included?
5. Where will the seams go?
6. Are removal, plumbing, backsplash and sealing included or extra?
7. Whose warranty covers what? Stone warranties vary by supplier and fabricator, so get the terms in writing.

If the quotes still differ widely after that, the gap is usually in the slab or in something one quote left out.

Get a Real Number for Your Kitchen

Granite countertops cost what your slab, your layout and your home make them cost, and no online average can see those. If you're comparing granite with quartz, get a quartz number to set beside your granite quotes. Our quote calculator gives an instant quartz estimate from your measurements, and a free in-home estimate from our team gives you an exact figure. You can also browse finished kitchen and bath countertops, or visit our Boca Raton showroom to see quartz colors in person.