Premium SGS granite and stones showroom logo in Bangalore
SUPREMEGRANITE & STONES

© 2026 Supreme Granite & Stones | Designed with precision by Vivek Jain

© 2026 Supreme Granite & Stones | Designed with precision by Vivek Jain

Quality Control Standards: Zero-Warp Flatness Slabs

Every slab processed at our Jigani facility undergoes a 5-point quality validation audit before loading.

AI Overview & Sourcing InsightsSGE Optimized

Quick Answer

SGS enforces rigorous, five-point quality control metrics validating slab thickness, gloss reflection, and shipping safety at Jigani.

In-Depth Overview

1. Thickness Check: We verify a uniform 20mm or 30mm thickness across all four corners using digital calipers. 2. Flatness Check: Slabs are checked for warping or CNC cut curves using precision straight-edges. 3. Polish Level: We test the gloss reflection coefficient using a glossmeter, ensuring mirror reflection. 4. Fissure check: Slabs with deep structural fissures are filtered out and rejected. 5. Porosity test: We verify proper sealant application before transport.

Advantages

  • Strict thickness calipers check at 20mm/30mm corners.
  • Laser alignment checks for slab flatness and zero-warp certification.
  • Sequenced block grouping to guarantee pattern flow.

Considerations

  • Rigorous selection filters out up to 90% of lower grade quarried slabs.
🛡️
Stone Expert Tip:Always verify that your shipping provider uses rubber-padded straps and frames during slab transit to prevent structural cracks.

1. Thickness Check: We verify a uniform 20mm or 30mm thickness across all four corners using digital calipers. 2. Flatness Check: Slabs are checked for warping or CNC cut curves using precision straight-edges. 3. Polish Level: We test the gloss reflection coefficient using a glossmeter, ensuring mirror reflection. 4. Fissure check: Slabs with deep structural fissures are filtered out and rejected. 5. Porosity test: We verify proper sealant application before transport.

Frequently Asked Questions

Q: How is thickness tolerance handled?

A: We maintain a strict tolerance of +/- 1mm to ensure flat, aligned joints during installation.

Want to inspect slabs in person?

Visit our main processing yard and showroom at Jigani near Bangalore to browse sequential blocks.

Other Quality Standards