Standard Size of Quartz Slabs | Find your Perfect Size/Thickness

What is the Size of a Quartz Slab? Jumbo and Super Jumbo

Quartz Stone Slabs come in a variety of sizes. Most popular standardized sizes are the Jumbo and Super Jumbo Sized Quartz Stone Slabs.

The standard size of quartz slab (especially popular in the USA) is : Super Jumbo Quartz Stone slab, that is, 138″ x 78″ (3500mm x 2000mm). This is because it offers the largest size currently possible to avoid seams and overall an excellent appearance.

The standard thicknesses of quartz slabs are 2cm and 3cm – 2cm thick quartz being the best for floors/walls & 3cm thick quartz countertops being the best choice for countertops.

Here is a table with the standard quartz slab sizes:

Type of slabSize (inches)Size (cm)
Regular60″ x 120”145 cm x 305 cm
Jumbo64″ x 126″160 cm x 320 cm
Super Jumbo78″ x 138”200 cm x 350 cm
Mini Slab31″ x 120″80 cm x 305 cm

Comparison of Jumbo Quartz Slab Size of Some Leading Brands

However, the size of quartz slab can also change slightly for each brand. That is the jumbo size of a brand lets say, Petros® can be slightly different compared to the jumbo size of another brand.

Here is a table with standard sizes of each brand:

ManufacturerStandard SizeJumbo SizeSuper Jumbo Size
Petros® Stone3200 x 1600 mm3200 x 1600 mm3500 x 2000 mm
Arenastone3040 mm x 1400mm3200mm x 1500mm3200 x 1600 mm
Caesarstone3050mm x 1400mm3240mm x 1640mm
Cambria3070mm x 1410mm3350mm x 1660mm
Quartzforms3000mm x 1400mm3200mm x 1600mm

For more detailed information on sizes of each brand and to find the right size for your project, feel free to connect with our team here

Quartz slabs have become increasingly popular in modern interior design. It offers both versatility and aesthetic appeal for countertops, flooring, and other surfaces. Understanding standard slab sizes is crucial for planning your home renovation or design project. Here are some designs and how they look based on the size of quartz slab.


How to choose the Right Quartz Stone Slab Size?

Consider these factors when selecting the size of your quartz slab:

  • Project Dimensions – check the dimensions of the countertop/use case and check against the slab sizes to see which particular size can reduce wastages/seams
  • Desired Aesthetic – Calacatta patterns usually look better in jumbo and super jumbo sizes and not mini sizes, as the pattern might break
  • Budget ConstraintsSuper Jumbo slabs are usually 15-20% more expensive compared to Jumbo Slabs
  • Fabricator’s Expertise – ask them what they are most comfortable using to avoid unnecessary installation costs/mistakes.
  • Specific design requirements – seamless kitchens with large lengths might require larger sizes and vice versa.
Quartz

Super Jumbo quartz slabs represent an excellent solution for those seeking expansive, seamless surfaces. By understanding the various sizes, benefits, and considerations, homeowners and designers can make informed decisions that balance aesthetics, functionality, and budget

Installation Recommendations

Jumbo Vs Super Jumbo – Which is the best for you?

Advantages of Jumbo Quartz Slabs

320x160 Jumbo Quartz Slab Size

1. Minimal Joints – It’s not small

Jumbo slabs offer significant advantages for large surface areas:

  • Fewer seams and joints
  • More aesthetically pleasing appearance
  • Seamless look for kitchen countertops and islands

2. Cost Considerations – Jumbo is cheaper

  • Slight price premium of 15-25% compared to standard slabs
  • Potential cost savings through reduced material waste
  • More economical for larger projects

3. Thickness Options – More Options

Jumbo quartz slabs typically come in:

  • 12mm (special order)
  • 20mm (standard)
  • 30mm (standard)
  • 40mm (less common)

4. More Practical

Jumbo quartz slabs are ideal for:

  • Large kitchen countertops
  • Kitchen islands
  • Extensive bathroom vanities
  • Commercial bar tops
  • Floor-to-ceiling backsplashes

Advantages of Super Jumbo Quartz Slabs

350x200 Quartz Slab Size

1. Seamless Elegance

Super jumbo slabs provide:

  • Minimal to no visible joints
  • Continuous, smooth surface
  • Enhanced aesthetic appeal
  • Luxurious, uninterrupted design
Quartz

2. Design Versatility

These massive slabs enable:

  • Large kitchen islands
  • Expansive countertops
  • Floor-to-ceiling wall cladding
  • Dramatic architectural features

3. Practical Benefits

  • Calacatta and other marble like patterns look better

4. Thickness Options

Super jumbo quartz slabs are typically available in:

  • 20mm (standard)
  • 30mm (popular for heavy-use areas)

Why are Super Jumbo Slabs more Expensive?

Super jumbo slabs come with a price premium:

  • They are usually 15-25% more expensive than standard slabs
  • This is due to a higher manufacturing complexity
  • Super Jumbo slabs may also require specialized transportation and handling equipment and expertise.

Why Super Jumbo is Expensive to Install?

  • Requires specialized fabrication skills
  • Professional handling essential
  • Careful site measurement
  • Advanced transportation logistics
Complex Installation Process
Complex Installation Process

Waste Reduction Strategies – Must Read

Laser Measurement of Granite

1. Precise Measurement

  • Measure your kitchen countertop area exactly
  • Add 1-2 inches of overhang for precise cutting
  • Use digital templates for accuracy

2. Optimal Slab Selection – Cut List Optimizer

Cut list optimizer is a software that can be used to find out the best slab size for you across many brands and their sizes. Just feed in the dimensions of pieces that you need to cut along with the standard slab sizes in stock with the brands you like. This software will automatically calculate wastage percentage for each brand and also dive you a visual representation on how to cut your slab.

3. Kitchen Layout Planning

  • Use L-shaped or U-shaped layout designs
  • Minimize unnecessary cuts
  • Plan seam locations strategically
  • Consider island and countertop integration
Laminated Edge Granite Countertop

4. New Fabrication Techniques

  • Use computer-aided design (CAD) for precise cutting
  • Work with experienced fabricators
  • Request 3D templating
  • Optimize slab usage through intelligent cutting patterns

5. Super Jumbo can be cheaper!

  • Larger slabs may reduce seam count
  • Fewer seams mean lower installation costs
  • Typical slab cost: 450-1200 per square foot

General Wastage Approximations

In our experience we have found the typical wastages for each size depending on the size of your kitchen. However, these measurements are very standardized and will change considerably for each particular kitchen.

Kitchen SizeRecommended Slab SizeEstimated Waste
Small (50 sq ft)3100mm x 1400mm10-15%
Medium (100 sq ft)3200mm x 1600mm5-10%
Large (150+ sq ft)Multiple slabs/Jumbo sizes3-5%

Best Size for Calacatta Quartz Slabs

Super Jumbo and Jumbo QUartz slab sizes are recommended for calactta quartz slabs. We suggest to not go for mini slabs for calcatta designs as they cut off the pattern.

Calacatta quartz slabs represent a pinnacle of design elegance, offering stunning marble-like aesthetics with exceptional durability and versatility.

Quartz

What is the Largest Size of a Quartz Slab?

To avoid seams or joints, the best solution is to use a larger quartz slab size. So the questions arises, What is the largest quartz slab size? – The largest quartz stone slab size is 3600mm x 2000mm. Even larger sizes are currently under research and prototyping.

The largest standard quartz slab sizes currently available include:

Largest Quartz Stone Slab Sizes:

  • 78 x 138 inches (2000 x 3500 mm)
  • 142 x 78 inches (3600 x 2000 mm)
Quartz

Standard Thicknesses of Quartz Slabs

Quartz slabs come in multiple thickness options:

  • 12mm
  • 20mm
  • 30mm
  • 40mm (less common)

Advantages of Different Thicknesses

ThicknessBest ForKey Benefits
12mmSmall spacesLightweight, cost-effective
20mmStandard kitchensBalanced performance
30mmHigh-traffic areasSuperior durability

Which Quartz Slab Thickness is Best for You?

Kitchens – 3cm Thickness

  • The 3 cm thick slab is most recommended for kitchen countertops. Professionals prefer this thickness because it offers:
  • Superior strength and durability
  • More luxurious appearance
  • Better weight resistance
  • Classic design aesthetic46
Quartz Countertop ©

Floors and High-Traffic Areas – 2cm Thickness

  • 2 cm thickness is ideal for floors
  • Provides maximum durability
  • Withstands heavy foot traffic
  • Offers better structural integrity
Quartz Bathroom Flooring
Quartz Bathroom Flooring

Walls and Decorative Surfaces – 1.5cm or 2cm Thickness

  • 1.5/2 cm thickness works well for wall cladding
  • Lighter weight
  • Easier installation
  • Suitable for vertical applications
Quartz Wall Cladding
Quartz Wall Cladding

Stairs – 3cm Thickness

  • 3 cm thickness recommended
  • Provides maximum strength
  • Reduces risk of cracking
  • Offers better edge finishing options
Quartz Stairs
Quartz Stairs

Conclusion

Choosing the right quartz slab size is a delicate balance between minimizing waste and meeting your kitchen’s specific design requirements. By carefully measuring, planning, and working with professional fabricators, you can create a stunning kitchen while keeping material waste to a minimum.

Remember, the goal is not just to reduce waste, but to create a functional, beautiful space that meets your unique needs.


Frequently Asked Questions

Standard Slab Dimensions

Most quartz suppliers offer three primary slab size categories:

Standard Quartz Slab Size

  • Typically measures around 3000mm x 1400mm
  • Ideal for smaller projects like bathroom vanities or compact kitchen counters. 

Jumbo Quartz Slab Size

  • Ranges from 3200mm x 1500mm to 3250mm x 1590mm
  • Perfect for larger kitchen countertops and islands. 

Super Jumbo/Giant Size Quartz Slab

  • Approximately 3500 mm x 2000mm
  • Excellent for expansive surfaces with minimal joints

What thickness options are available for quartz?

A: Typical quartz slab thicknesses include:

12mm (thin profile)

20mm (standard)

30mm (heavy-duty)

Do larger Quartz slabs cost more?

A: Super jumbo slabs typically have a 15-25% price premium due to complex manufacturing and handling processes

Feel free to get in touch for a free consultation, quote, and get a detailed understanding from our experts here at Petros®. Visit https://petrosstone.com/ or call +91-8446360361 and WhatsApp 

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