Practical planning guide

TI-HI Gross Weight Boundaries: Budget the Next Complete Layer

Compare exact gross thresholds with tare and ancillary mass included, and explain why spare kilograms may not fit another full layer.

Reviewed: 1 October 2026

Decide what one more layer would actually weigh

A load can have unused gross-weight budget without room for another complete layer. The weight of one layer is TI multiplied by packed-case mass. The pallet and additional materials must also be counted when the entered constraint is gross. Subtract those non-case components once before dividing the remaining budget into complete layers.

Assume a fictional eight-case layer with each packed case weighing 12 kg. The base tare is 25 kg and ancillary materials add 3 kg. One layer adds 96 kg, while tare and ancillary mass together add 28 kg. The gross weight for n complete layers is 28 + 96n kg. The example limits below are hypothetical budgets, not load ratings or operating recommendations.

Compare the kilograms immediately around a threshold

Two layers weigh 220 kg gross, three weigh 316, and four weigh 412. A gross budget of 315 kg permits only two complete layers. Raising it to 316 permits three. A budget of 411 still permits only three, despite 95 kg of remaining budget above their 316 kg gross. The next layer adds 96 kg and requires 412.

Same cases and components, four hypothetical gross budgets
Gross budgetSelected HICasesActual grossNext layer gross
315 kg216220 kg316 kg
316 kg324316 kg412 kg
411 kg324316 kg412 kg
412 kg432412 kg508 kg

This is full-layer arithmetic. It does not automatically add individual cases into the spare kilograms. At 315 kg, a few extra cases would be another partial-layer proposal with a different arrangement, not the maximum complete HI returned by the tool. Keep that distinction visible rather than reporting a fractional layer as though it were a complete pallet pattern.

Combine weight with a noncontrolling height comparison

Use cases 400 by 300 by 250 mm on a 1200 by 800 by 144 mm base with horizontal rotation and zero added spacing. Uniform TI is eight. A 1500 mm total height budget permits five layers, so all four weight examples are controlled by gross mass. Height remains a supplied constraint even though it is not the minimum here.

Open the 315 kg comparison and the exact three-layer threshold. The limiting label should identify gross weight.

Verify the component definitions before trusting the boundary

The 12 kg case mass must mean the complete packed case. If it is product-only mass, case packaging needs reconciliation. If carton mass is already included, do not add it again. The 25 kg tare and 3 kg ancillary values are stated measurements for this exercise, not universal allowances. A tail or a different protection package may have different components.

Gross comparison requires tare. In the TI-HI interface, a gross limit with missing tare is invalid rather than permission to ignore it. Enter zero only when intentionally excluding tare from the stated model and label that exclusion. The separate weight calculator leaves gross unknown when tare is blank; its case-mass output is not a completed gross check.

Review sensitivity to a changed component

If ancillary mass rises from 3 to 4 kg, three layers now require 317 kg. The former exact 316 kg threshold no longer permits them. If case mass changes, the effect is multiplied across every case in a layer. Recalculate from the component measurements rather than applying a guessed percentage adjustment to the rounded gross total.

Numeric equality with a budget means the arithmetic fits the supplied number. It does not establish a safety factor, measurement process, packaging stability, or suitability for handling equipment. The responsible source must supply the applicable limit and its definition. Do not raise a real limit simply because one more kilogram would admit a desired layer count.

Retain measured case decimals at the boundary

If packed cases weigh 12.1 kg rather than 12, an eight-case layer weighs 96.8 kg and three layers require 318.4 kg gross with the same 28 kg non-case components. A 316 kg budget then permits only two. Rounding the case mass down to 12 would manufacture the former three-layer result. Preserve the measurement basis and unrounded case mass through the layer calculation, and choose display precision after the constraint comparison. The extra decimals describe the input record, not a promised weighing accuracy.

Carry the selected capacity into actual order weights

At the 316 kg threshold, complete capacity is twenty-four cases. A fictional fifty-case order requires three carriers containing twenty-four, twenty-four, and two cases. The tail's example gross is 2 times 12 + 28 = 52 kg. Shipment gross is 316 + 316 + 52 = 684 kg, also 50 times 12 + 3 times 28. Copying 316 to all three would count cases absent from the order.

The two-case tail has no full eight-case layer. Its placement and envelope require their own record. Use the weight calculator for the quantity reconciliation and retain the complete TI-HI specification separately. The larger whole-layer budget is not an instruction to fill every carrier to the maximum.

Gross-threshold record

Units mm and kg. Pallet 1200 by 800 by 144, tare 25. Case 400 by 300 by 250, packed mass 12. Uniform TI 8; rotation allowed; zero gap and clearance. Ancillary mass 3. Height budget 1500. Compare gross budgets 315 and 316 in constraint mode. Returned HI 2 and 3, case totals 16 and 24, gross 220 and 316. Next-layer thresholds 316 and 412. Actual source data and packaging approval remain required.

A complete boundary record explains why spare kilograms did not become another complete layer. It also tells a reviewer exactly which case or non-case component could change the numerical conclusion.

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