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FIBC sizing tool

Find the volume.
Compare your bag options.

Enter your target fill weight and bulk density. Compare U-panel, baffle, and circular options from Bulk-Pack’s published capacity charts, then bring a starting size to our team.

01 / Define your product

Start with what
goes into the bag.

Measured bulk density gives the most useful estimate. Reference values vary with material grade, moisture, settling, and handling.

Search 1,686 published material entries. Select the matching form, grade, or blend to fill in its reference density. Each version remains separate.

    Source: Hapman Bulk Density Guide ↗ · Snapshot: November 1, 2026. Values are estimates, may vary by handling and product grade, and do not update automatically. You can enter a measured density below.

    Using your entered density. Use a measured value when available.

    Optional planning allowance added to product volume. Confirm the allowance for your filling process.

    This filters chart dimensions. It does not establish filled height, lifting clearance, or a safe stacking arrangement.

    Sizing guidelines: All sizes and capacities shown—including published U-panel and baffle designs and circular estimates—are guidelines only. Bulk-Pack can help you determine the right bag size and design for your product, equipment, and handling requirements. Let’s size your bag together ↗

    Fabric stretch & sizing estimates: Fabric stretch varies by manufacturer, fabric construction, elongation, load, product characteristics, filling conditions, and other factors. Actual filled dimensions, shape, and usable capacity may differ from chart values and calculated estimates. Confirm the final design, dimensions, capacity, and safe working load with Bulk-Pack and the manufacturer.

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    The reference behind the results

    Published capacities.
    Listed dimensions.

    Transcribed from Bulk-Pack’s existing options chart. A missing entry stays unavailable; the calculator does not extrapolate.

    View U-panel capacity chart
    U-Panel — published chart values
    Capacity (ft³)29 × 29 in
    Height (in)
    35 × 35 in
    Height (in)
    41 × 41 in
    Height (in)
    102012Not listed
    152818Not listed
    20362317
    25442921
    30523425
    35614029
    40694633
    45785237
    50Not listed5741
    55Not listed6345
    60Not listed6949
    65Not listed7453
    70Not listed8057
    75Not listed8561
    80Not listedNot listed65
    85Not listedNot listed69
    90Not listedNot listed73
    95Not listedNot listed77
    100Not listedNot listed82
    View baffle capacity chart
    Baffle — published chart values
    Capacity (ft³)42 × 42 in
    Height (in)
    39 × 47 in
    Height (in)
    48 × 48 in
    Height (in)
    20181914
    25222418
    30272921
    35313425
    40363829
    45404332
    50454836
    55495340
    60545843
    65586247
    70636750
    75677254
    80717758
    85768161
    90808665
    95859168
    100899672
    10594Not listed76
    110Not listedNot listed79
    115Not listedNot listed83

    Source: Bulk-Pack Options of Constructions and Design ↗. Internal model codes are excluded. Values are planning references and do not indicate a currently approved design or stock availability.

    Let’s talk packaging

    Let’s review your
    bag capacity and design.

    Choose a chart option above to include the estimate in your inquiry. Add your product, filling and discharge process, lifting equipment, liner requirements, and quantity.

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