Time

Field

Original Value

Corrected Value

Note / Status

No correction records yet. Found an error? Click the flag at the end of a row to report it.

PRODUCT MODULE 01 / 06

Physical Dimensions

Automatic mm / inch conversion · Core engineering specifications

Data source: Structured from factory data; final measured values prevail.

Overall dimensions (W × D × H)	2400 × 900 × 36 mm
Overall slab dimensions	2400 x 900 x 36 mm
Central front knee notch width	600 mm
Left stepped end extension depth	200 mm
Right stepped end extension depth	200 mm
Edge profile thickness	36 mm
Main work surface depth (excluding ends)	700 mm
Edge micro-chamfer radius	2 mm
Slab flatness tolerance	0.5 mm per linear meter
Primary Component Thickness	40 mm according to load-bearing role
Hardware / Moving-part Clearance	5 mm operating clearance

PRODUCT MODULE 02 / 06

Weight, Load & Performance

Net weight / load capacity / users / durability

Data source: Product performance data; verify exact test conditions before procurement.

Slab net weight (without packaging)	190 kg
Distributed static load capacity	150 kg
Surface scratch resistance (Mohs hardness)	3
Surface heat resistance	120 °C
Sealed surface stain resistance rating	4 (moderate)
Recommended support point spacing	600 mm
Reference Static Load	150 kg depending on category
Moving-part Durability Reference	Acceptance target 50000 cycles
Recommended Procurement Warranty	Structure 5 years; hardware 3 years

PRODUCT MODULE 03 / 06

Materials & Structure

Core acceptance fields · Panels / hardware / frame / upholstery

Data source: Subject to the factory material list and inspection report.

Top surface	Natural black marble with white bookmatched veining, multi-pass polished mirror finish
Exposed edges	Full-thickness polished marble with 2mm micro-chamfer
Slab core	Solid homogeneous natural marble, no veneer or composite core
Underside mounting points	Optional pre-drilled threaded metal inserts for base attachment
Surface sealant	Penetrating resin sealer applied post-polishing for stain protection
Edge reinforcement	Resin-filled natural fissures for structural integrity
Corner protection (packaging)	High-density foam padding on all exposed corners
Primary Connector Specification	Reference M6-M10 with at least 2 fixing points at major joints
Reference Finish / Color Count	Recommended 6finish options

PRODUCT MODULE 04 / 06

Functions & Adjustment

Adjustment / rotation / tilt / mobility / storage features

Data source: Functional configuration; the supplier specification prevails.

Cut profile	CNC waterjet cut to custom stepped shape with central front knee notch
Surface function	Flat polished work surface for executive desk use, compatible with monitor, keyboard and office accessories
Mounting compatibility	Pre-drilled insert option supports attachment to metal or wood desk base structures
Edge safety	Micro-chamfered edges eliminate sharp corners to prevent user injury and edge chipping
Pattern alignment	Bookmatched veining creates continuous symmetrical pattern across full slab width
Maintenance access	Surface compatible with pH-neutral stone cleaners, no special tools required for regular care
Reference Adjustment / Operating Range	100 mm or 120° where applicable

PRODUCT MODULE 05 / 06

Packaging & Logistics

Verified carton / gross weight / assembly / loading data

Data source: Reference for export quotations and container planning.

Reference Package Count	1 set / 2 cartons
Reference Assembly Time	40 minutes per set
Reference Packaging Volume	0.8 m³/set
Reference Packaged Gross Weight	120 kg/set

PRODUCT MODULE 06 / 06

Applications & Usage

Recommended spaces / users / usage modes

Data source: Recommended applications based on product form and category.

Executive office application	Suitable as premium work surface for high-end executive desks in private offices
High-end residential study application	Compatible with luxury home office desks for premium residential interiors
Custom furniture production use	Fabricated component for custom furniture makers producing stone-top office desks
Showroom display application	Suitable for display desk tops in premium product showrooms or gallery spaces
Matching surface compatibility	Can be paired with matching stone side cabinets or reception surfaces for coordinated interiors

STANDARD S1

EU Market Entry Requirements * EN Standards

EU Market Access Requirements* EN Standards

EN 12058:2015	Natural stone slabs for floors and stairs, applies to dimensional tolerance and finish quality reference
EN 1341:2012	Natural stone slabs for external paving, applies to flexural strength testing reference for structural validation

STANDARD S3

Standards Applicable to China-Market Projects * GB Standards

Standards applicable to China-market projects

GB/T 19766-2016	Natural marble building material specification, applies to dimensional and material quality acceptance
GB 6566-2010	Radionuclide limit standard for building decoration materials, applies to indoor use safety verification

Standardized tender description text

This product must meet the following technical requirements:
1. GB/T 19766-2016: Natural marble building material specification, applies to dimensional and material quality acceptance;
2. GB 6566-2010: Radionuclide limit standard for building decoration materials, applies to indoor use safety verification;
Final delivery parameters, test reports, and acceptance criteria are subject to the purchase contract.

GENERATED EXPORTS

Ready-to-use export tools

Export data is generated from the current published product record.

Technical Report PDF

Directly download an English report in metric or imperial units.

PDF · CST-BM-2490

Complete Parameter Workbook

Download all product information and parameter modules in English.

XLSX · CST-BM-2490

International Listing Template

English title, specifications, materials, standards and purchasing fields.

XLSX · LISTING

Customs Declaration Data

Prepare customs description, material, usage, dimensions and declaration elements.

CUSTOMS · CST-BM-2490Open Export Tool

Quick Actions

Post an RFQ

Product Description

The Custom Polished Black Marble Stepped Desk Tabletop Slab (model CST-BM-2490, unbranded) is a custom natural stone furniture component designed for premium desk installations. Visually, the solid slab features polished natural black marble with flowing white bookmatched veining, aligned to create a continuous symmetrical pattern across its full width. Its stepped layout includes a central 600mm wide front knee notch, 200mm deep stepped extensions on both left and right ends, and a 700mm deep main work surface between the extensions, delivering a structured, executive-ready silhouette. Edges are finished with a 2mm micro-chamfer, softening the 36mm full-thickness profile while eliminating sharp corners to reduce injury risk and edge chipping. Constructed from homogeneous solid natural marble with no veneer or composite core, the slab is CNC waterjet cut to its precise stepped profile. Natural fissures are resin-filled for structural integrity, and the top surface receives a multi-pass polished mirror high-gloss finish, treated post-polishing with a penetrating resin sealer for moderate stain protection. The slab’s flatness holds a 0.5mm per linear meter tolerance, with a Mohs hardness rating of 3 for scratch resistance and 120°C surface heat resistance. It supports a 150kg distributed static load, with a recommended support point spacing of 600mm for stable installation. Optional pre-drilled threaded metal inserts on the underside enable secure attachment to metal or wood desk bases, accommodating M6 to M10 connectors with at least two fixing points at major joints. Routine care requires only pH-neutral stone cleaners, with no specialized tools needed for regular maintenance. This tabletop serves as a premium flat work surface compatible with monitors, keyboards, and standard office accessories, suited for high-end executive desks in private offices, luxury home study desks in upscale residential interiors, custom stone-top desk production for furniture makers, and display desk surfaces in premium showrooms or gallery spaces. It may also be paired with matching stone side cabinets or reception surfaces for fully coordinated interior schemes. For procurement, note the slab’s 190kg unpackaged net weight; units ship as one set across two cartons, with 0.8 cubic meters of packaging volume per set, 40 minutes of assembly time, and high-density foam padding on all exposed corners for transit protection. Six recommended finish options are available to align with specific project design requirements.

Custom Polished Black Marble Stepped Desk Tabletop Slab Specifications

Suppliers and stock