Key Takeaways
- 138" x 79" is widely recognized as a premier super jumbo quartz slab size, engineered to eliminate seams on extra-large kitchen islands and lower material waste during multi-piece fabrication .
- Standard quartz slabs typically measure 126" x 63", making super jumbo dimensions significantly larger and more versatile for high-yield residential and commercial projects .
- Super jumbo slabs are predominantly produced in 20 mm and 30 mm thicknesses, with options for 15 mm or 18 mm depending on factory confirmation and project requirements .
- Available surface finishes include Polished, Honed, Leathered, and Matte, supporting diverse design styles from classic veined looks to solid colors .
- B2B procurement programs usually operate on minimum order quantities of 20 slabs per color (or 100 m²), with typical production lead times between 15 and 25 days .
Introduction
In modern architectural and interior design, grand kitchen islands, expansive wall cladding, and seamless commercial surfaces have driven demand for oversized engineered stone. Traditional standard quartz slabs often force fabricators to join multiple pieces together, creating visible seams that can interrupt visual patterns. As a result, commercial buyers, fabricators, and project procurement teams increasingly search for super jumbo formats.
Selecting the right slab format requires balancing visual continuity with practical fabrication yields, transport limits, and material handling capabilities. This article clarifies whether 138" x 79" qualifies as the standard super jumbo quartz size, compares standard and jumbo specifications, outlines fabrication parameters, and provides actionable procurement guidance based on verified product data from Meritara .
Defining Super Jumbo Dimensions in the Quartz Industry
The 138" x 79" (approximately 3500 mm x 2000 mm) format is considered an industry-standard super jumbo size for quartz slabs . While traditional standard quartz slabs measure 126" x 63" (3200 mm x 1600 mm), super jumbo dimensions provide a substantially larger usable surface area .
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| Super Jumbo Quartz Slab: 138" x 79" (approx. 3500 mm x 2000 mm) |
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| | Standard Quartz Slab: 126" x 63" (approx. 3200 x 1600 mm) | |
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Super jumbo slabs were developed to address specific fabrication challenges. Standard 126" x 63" slabs are sufficient for standard countertop runs and perimeter installations, but they frequently fall short when covering modern residential islands that exceed 10 feet in length or 5 feet in width without requiring seams. By offering 138 inches of continuous length and 79 inches of width, super jumbo slabs allow fabricators to cut large single-piece island tops, oversized waterfall edges, and high-volume cut-to-size project components from a single panel .
In addition to 138" x 79" and 126" x 63", manufacturers produce other common metric dimensions such as 2700 x 1800 mm, 3000 x 1400 mm, and 3200 x 1800 mm to meet varied regional market requirements . However, for North American and global commercial buyers seeking maximum surface coverage per slab, 138" x 79" remains a benchmark super jumbo specification .
Comparing Yield, Slab Sizes, and Fabricator Efficiency
Using 138" x 79" super jumbo quartz slabs significantly improves material yield and cutting efficiency during fabrication compared to standard formats . Larger surface areas give fabricators greater flexibility when nesting multiple countertop pieces, L-shaped vanity runs, or splashbacks onto a single slab.
When planning volume apartment projects, commercial developments, or regular stock inventory, maximizing surface area per slab minimizes offcut scrap rate. Fabricators working with larger slabs can often fit both a primary island surface and adjacent perimeter pieces on one sheet, reducing the total slab count required for a job.
| Slab Category | Nominal Dimensions | Primary Project Focus |
|---|---|---|
| Standard Slab | 126" x 63" (3200 x 1600 mm) | Standard kitchens, vanities, apartments |
| Industry Metric | 3000 x 1400 mm | Small residential runs, compact spaces |
| Large Format | 3200 x 1800 mm (2700 x 1800 mm) | Commercial interiors, medium islands |
| Super Jumbo Slab | 138" x 79" (3500 x 2000 mm) | Oversized islands, seamless cladding |
While 138" x 79" provides clear yield advantages, buyers and fabricators must evaluate site logistics and workshop equipment before ordering. Super jumbo slabs are heavier and require appropriate A-frames, overhead cranes, suction lifters, and transport vehicles rated for oversized slabs.
Structural Thickness, Surface Finishes, and Visual Collections
Super jumbo quartz slabs are predominantly manufactured in 20 mm and 30 mm structural thicknesses to ensure safety and strength during transport, cutting, and installation .
For specialized application requirements, selected products and sizes can also be produced in 15 mm or 18 mm thicknesses, subject to factory confirmation . Thinner profiles are often selected for vertical wall cladding or lightweight commercial applications where structural load must be minimized.
To suit different architectural styles, manufacturers supply super jumbo quartz across a complete spectrum of surface finishes and aesthetic collections:
- Surface Finishes: Polished, Honed, Leathered, and Matte finishes are standard options . Custom surface textures can be produced based on specific project requirements .
- Design Collections: Available aesthetic lines include Calacatta, Carrara, Quartzite-Inspired, Solid Color, Printed Quartz, and Classic collections .
- Practical Design Focus: Core collections emphasize practical design consistency, broad usability, and long-term pattern stability over overly intricate veining, making them well-suited for volume stock programs and repeat project purchasing .
Commercial Sourcing: Lead Times, MOQ, and Verification
Procuring super jumbo quartz slabs requires aligned commercial terms regarding order volumes, production lead times, and sample validation .
For standard procurement programs (such as those maintained under Meritara sales policies as of August 2026), key operational guidelines include:
- Minimum Order Quantity (MOQ): The standard MOQ is 20 slabs per color or 100 m² per color . OEM, ODM, special projects, and long-term supply agreements can be negotiated separately based on specific buyer requirements .
- Production Lead Times: Typical factory lead time is approximately 15 to 25 days for regular colors . Custom colors, specialized OEM runs, or ODM programs require approximately 20 to 30 days, depending on final order quantity and confirmed factory schedules .
- Sample Evaluation: Small physical quartz samples measuring approximately 10 x 10 cm are provided free of charge . Customers are responsible for sample freight costs, which are fully refundable upon placement of a confirmed order . Full-slab or custom-sized samples can also be arranged for project approval .
Importers and purchasing managers should establish clear documentation for physical color matching, batch consistency, and cut-to-size specifications prior to full container loading.
Frequently Asked Questions
Is 138 x 79 considered the standard super jumbo quartz size?
Yes, 138" x 79" (approximately 3500 mm x 2000 mm) is widely recognized in the stone industry as the standard super jumbo size . It is engineered to cover large kitchen islands without seams and maximize fabricator yield during cut-to-size processing .
What thicknesses are available for super jumbo quartz slabs?
Standard production thicknesses for quartz slabs are 20 mm and 30 mm . Selected products and dimensions can also be manufactured in 15 mm or 18 mm profiles upon factory confirmation .
What surface finishes can be applied to super jumbo quartz slabs?
Super jumbo quartz slabs are available in Polished, Honed, Leathered, and Matte finishes . Custom surface treatments can also be arranged based on project requirements .
What is the minimum order quantity and production lead time for bulk orders?
The standard minimum order quantity is 20 slabs per color or 100 m² per color . Typical production lead time ranges from 15 to 25 days for regular colors and 20 to 30 days for custom or OEM/ODM programs .
Conclusion
The 138" x 79" format stands out as the definitive super jumbo quartz slab size for projects requiring seamless installation over large surface areas . By providing significant yield improvements over standard 126" x 63" slabs, super jumbo slabs allow fabricators and distributors to minimize scrap and execute grand residential or commercial designs efficiently .
This format is ideal for high-volume housing developments, commercial hospitality projects, and distributor stocking programs focused on practical, high-consistency visual collections .
Before placing commercial container orders, procurement managers should request standard 10 x 10 cm samples to verify colors and finishes, confirm factory lead times (15–25 days for regular stock), and verify that local fabrication shops possess the crane and table capacity to process oversized 138" x 79" panels safely .
