Quartz Slab Sizes

Quartz slab size depends on the brand and the format. A standard quartz slab is typically about 120 to 122 inches long and 55 to 57 inches wide. A jumbo slab is typically about 128 to 132 inches long and 63 to 65½ inches wide, and a few designs now come even larger.

Slab size decides how many slabs your project needs, whether an island can be seamless, and where seams fall on a long run. Below are the published dimensions from the major brands, what the slabs weigh and how to use the numbers when you plan. For the full installation process, see our quartz countertop installation guide.

Standard Quartz Slab Size vs Jumbo

Most quartz brands make two formats:

• Standard slabs are the smaller format, often used for solid colors and fine-grain patterns.
• Jumbo slabs are both longer and wider. Many marble-look and veined designs are made only in jumbo, because the larger face gives the pattern room to move.

MSI puts typical standard slab sizes at about 126 by 64 inches or 130 by 65 inches, which shows how loosely the word standard is used across the industry. Always check the format of the specific color you want. Cambria, for example, advises checking with your fabricator for the slab sizes and thicknesses available in each design.

Quartz Slab Dimensions by Brand

These are the sizes each manufacturer publishes. Sizes are nominal, and some brands state a tolerance.

Brand	Standard slab	Jumbo slab	Thicknesses
Cambria	122 × 55.5 in (310 × 141 cm), about 47 sq ft	132 × 65.5 in (335 × 166 cm), about 60 sq ft	1 cm, 2 cm, 3 cm
Caesarstone	305 × 144 cm (about 120 × 56.5 in)	128 × 64.5 in (327 × 164 cm), ±1.5%	2 cm and 3 cm, by color
Silestone (Cosentino)	Up to 3,060 × 1,400 mm (about 120 × 55 in)	Up to 3,250 × 1,590 mm (about 128 × 63 in)	12, 20 and 30 mm
HanStone	Select colors	130 × 65 in	2 cm and 3 cm

Some designs go past jumbo. MSI makes its Calacatta Rusta and Calacatta Belaros quartz in a super jumbo format of 140 by 82 inches.

How Big Is a Slab of Quartz in Square Feet?

Cambria rates its standard slab at a nominal 47 square feet and its jumbo at 60 square feet. Cosentino bills Silestone by usable area, with a range of about 29 to 46 square feet for standard slabs and about 42 to 56 square feet for jumbo.

Cambria notes that an average kitchen uses 50 to 100 square feet of material. So a typical kitchen needs two or three slabs, and a kitchen with a large island may need more. A single bathroom vanity often comes out of part of one slab.

How Much Does a Quartz Slab Weigh?

Quartz is heavy, which is one reason slabs are moved with lifting equipment and pieces are set by a team. Manufacturer figures:

• Cambria: about 10 lb per square foot at 2 cm, 15 lb per square foot at 3 cm and 6 lb per square foot at 1 cm.
• Caesarstone: 43 to 48 kg per square meter at 2 cm and 66 to 70 kg per square meter at 3 cm (roughly 9 to 10 and 13.5 to 14.5 lb per square foot). A full 3 cm jumbo slab weighs 362 to 382 kg, or roughly 800 to 840 lb.

Weight matters for your cabinets as well as for delivery. Our guide to installing quartz on existing cabinets explains what the boxes below need to carry.

How Slab Size Affects Seams and Layout

Slab size sets the longest piece your fabricator can cut, and that drives the seam plan.

• Islands: an island up to about 10 feet by 5 feet can often come from one jumbo slab with no seam. A standard slab limits you to about 10 feet by 4½ feet, before losses at the edges.
• Long perimeter runs: a straight wall longer than the slab needs a seam. Choosing a jumbo color can move that seam or remove it.
• Waterfall ends: the vertical panels come from the same slabs, which adds to the slab count and to the vein-matching work.

Our guide to quartz countertop seams covers where joints should and should not go.

Quartz Slab Size and South Florida Condos

In high-rise buildings from Miami Beach to Fort Lauderdale, the question is less about the slab and more about the finished pieces. Slabs are cut to size in the fabrication shop, so what has to fit through the freight elevator, the hallway and the unit door is each finished piece, not the full slab.

That sometimes changes the seam plan. A 12-foot island top that fits on one jumbo slab may still be split into two pieces if it cannot make the turn out of the elevator. Measuring the delivery path is part of a good template visit. Our condo countertop installation guide covers building logistics.

Choosing a Color With the Right Slab Format

If you have a long island or a long uninterrupted wall, check the slab format before you fall for a color. Two colors that look similar on a sample can come in different formats, and the one in jumbo may save you a seam.

Thickness is the other half of the choice. Not every color comes in every thickness, and 2 cm and 3 cm tops handle overhangs and edges differently. Our quartz countertop thickness guide explains the tradeoffs.

You can compare brands in our quartz brands directory, get a starting number from the quote calculator, or see finished work on our quartz countertops page.