Shisha Charcoal Cube Size Guide for Commercial Buyers

Commercial buyers need more than a size label. They need measurable dimensions, an agreed tolerance, the intended operating arrangement, and a pack that matches the product.

This worksheet helps importers, distributors, wholesalers, and brand owners describe the format they want and check the sample offered. It supports sample evaluation before ordering and the wider shisha sourcing process.

A shisha charcoal cube size guide starts with the difference between the size written on an offer and the dimensions measured on the material. A nominal size describes the intended format. The actual cube still needs a defined measurement method and acceptance range. Writing only large cube or standard cube leaves too much room for different interpretations.

Describe length × width × height in millimetres. If you want a cube, state whether all three dimensions share the same target and tolerance. If the requested format is rectangular, record each axis separately rather than calling it a cube and assuming the seller will infer the proportions.

Unimax’s current shisha page states that exact cube size and tolerance are confirmed against the current specification. Ask for the available format and sample evidence before treating a requested dimension as an available production offer. This guide does not announce a new size range or a guaranteed tolerance.

Tolerance describes permitted variation around a target. It should be explicit for the relevant axes and supported by a measurement method. A target dimension without a tolerance cannot settle whether a small difference is acceptable; a tolerance without a suitable method can create a dispute that neither party can resolve consistently.

Record whether acceptance applies to individual measured pieces, a defined sample summary, or another agreed rule. Keep individual results even if you also calculate an average. An average can be on target while individual cubes differ enough to affect the buyer’s intended arrangement or pack.

Include the sampling approach, instrument, resolution, measurement locations, and treatment of chipped edges. Do not invent a universal acceptable variation. The buyer and supplier should agree a feasible order requirement, then identify the evidence needed to show conformity.

Identify the sample, supplier, offered grade, and date. Select pieces across the available material using a documented approach instead of choosing only the most regular cubes. Record the quantity measured and assign a piece ID so each dimension can be traced to the same object.

Use an appropriate measuring instrument, check its zero and condition, and use the same contact method and orientation for each piece. Record length, width, and height separately. Agree where to measure irregular faces and how to treat chipped corners; squeezing harder or changing the location between suppliers undermines a comparison.

Write the raw values before rounding or summarising. Record chips and cracks as separate observations, then note whether a damaged face limits the dimensional check. Keep a photo with a readable scale when it helps document a measurement, but do not treat a single photo as proof that an entire lot conforms.

A heat-management device (HMD) or a foil-based setup creates a specific application context. Name the device or arrangement your buyers use, the intended placement, number of pieces, and tending routine. Confirm relevant equipment instructions with the operator rather than assuming any cube described as standard will fit every setup.

Assess physical fit with the actual sample and intended arrangement. Record contact, clearance, placement stability, and any handling limitation you observe. Then evaluate useful-heat behavior under matched conditions. Physical fit and performance fit are separate decisions; passing one does not automatically establish the other.

Avoid declaring one cube size universally best or assigning a fixed performance advantage to size alone. Compare identified samples under the same ignition method, airflow, starting arrangement, and endpoint. If the size changes, document the changed quantity or placement as part of the test rather than hiding it in the result.

The same number of pieces can represent different total mass. Record both the piece count and the starting fuel mass when comparing samples. If the purpose is to compare a normal customer arrangement, use that arrangement and disclose the mass; if the purpose is a mass-matched comparison, define that basis separately.

For pack planning, distinguish a net-weight pack from a guaranteed piece-count pack. A pack sold by weight does not automatically promise a fixed number of cubes. Measure representative individual masses and confirm what the pack specification guarantees before using a piece-count estimate in retail copy.

As an illustration only, a 1,000 g net-weight pack divided by an assumed 15 g average piece mass gives about 66.7 piece-equivalents. That is an estimate, not a promise of 67 intact cubes. Actual piece mass, fragments, and packing variation must be checked; these example numbers are not Unimax product specifications.

Check the proposed inner-pack arrangement, piece count or net weight, and external dimensions with a representative prototype. Ask whether the packing arrangement depends on tight dimensional control, orientation, or additional clearance. A loose-cube sample cannot approve an untested retail pack.

Record fit and closure, visible movement, edge contact, and handling findings. Keep packaging damage separate from chipped cubes, and use a stated inspection method for any packed-product evaluation. Confirm outer-carton arrangement and pack identity when planning the commercial order.

For private label, connect the approved cube format to the approved pack and artwork version. If size changes, review the pack fit and any quantity statements again. A design that looks identical on screen may no longer describe the actual packed product correctly.

Record breakage found on arrival separately from damage created during handling or evaluation. Define the damage rule and denominator: damaged pieces by count or broken material by mass. Do not assume a dimensional difference is the cause of breakage without evidence about the material, pack, and handling conditions.

Before ordering, connect the accepted sample measurements to the written specification and pack. State how the production lot will be checked and who releases it. Request approval before a material change to dimensions, tolerance, or packing arrangement affects the agreed product.

On repeat orders, quote the specification version rather than same size as before. Review customer findings using the actual lot reference and setup. This gives importers and distributors a usable record for discussing consistency, rather than an argument based on two cubes chosen from different shipments.

Send company, country, buyer type, estimated volume, application or HMD/foil setup, requested dimensions, tolerance needs, and pack format. Include private-label requirements and timing where relevant. Ask Unimax to confirm the available format, current specification, and sample options; commercial details remain subject to the current quotation.

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