A 20-foot container (20GP) holds roughly 28,000–45,000 linear meters of standard 150 cm woven polyester fabric (or 18,000–28,000 meters of 240 cm wide-width sheeting), while a 40-foot High Cube (40HQ) holds 65,000–125,000 linear meters depending on GSM, roll diameter, and finished width. In international B2B textile procurement, ocean freight costs 0.09 per meter when a container is optimized—and double that if poor roll-length planning leaves 25% of the container empty or triggers overweight drayage fees.
Use this mill-direct logistics engineering guide alongside our interactive Roll Diameter & Weight Calculator and GSM Calculator to plan exact 20GP, 40GP, and 40HQ container bookings.
1. Shipping Container Internal Dimensions & Realistic Fabric Utilization
Shipping lines publish theoretical internal cubic capacities (33.2 m³ for 20GP, 67.7 m³ for 40GP, and 76.4 m³ for 40HQ), but cylindrical textile rolls Wound on cardboard cores cannot fill 100% of a rectangular box. Between honeycomb stacking voids, polybag end-ties, and roof clearance for the final top tier, realistic volumetric utilization (η) for floor-loaded fabric rolls is 78% to 84%.
| Container Type | Internal Length × Width × Height | Theoretical Volume | Practical Roll Volume (η ≈ 80%) | Typical Net Fabric Weight Loaded | Best Textile Use Case |
|---|---|---|---|---|---|
20' Standard (20GP) | 5.89 m × 2.35 m × 2.39 m | 33.2 m³ | 26.0 – 27.5 m³ | 9,500 – 14,500 kg | Dense heavy goods (220–320 GSM Minimatt, Oxford, PVC coated) or trial multi-SKU orders |
40' Standard (40GP) | 12.03 m × 2.35 m × 2.39 m | 67.7 m³ | 53.0 – 56.0 m³ | 16,500 – 20,500 kg | Standard 150 cm dyed/printed piece goods where port road weight limits restrict 40HQ |
40' High Cube (40HQ) | 12.03 m × 2.35 m × 2.69 m | 76.4 m³ | 61.0 – 64.5 m³ | 18,500 – 23,500 kg | B2B Standard:240–315 cm bedding microfiber, blackout drapery, pongee, and PFD greige |
2. Container Load Reference Table by Fabric Category & Width
All figures below assume floor-loaded (loose-stowed) export bale rolls wound on 50 mm (2") or 76 mm (3") heavy-wall paper tubes with double woven PP outer bales:
| Fabric Category & GSM | Finished Width | Standard Roll Length | Est. Roll Weight (Gross) | Est. Outer Roll Diameter | 20GP Capacity (Rolls / Meters) | 40HQ Capacity (Rolls / Meters) |
|---|---|---|---|---|---|---|
Pongee Lining (75 GSM) | 150 cm | 250 m / roll | ~29.5 kg | ~26 cm | ~360 rolls / 90,000 m | ~820 rolls / 205,000 m |
Peachskin Bedding (90 GSM) | 240 cm | 200 m / roll | ~45.2 kg | ~31 cm | ~155 rolls / 31,000 m | ~365 rolls / 73,000 m |
Peachskin Bedding (110 GSM) | 280 cm | 150 m / roll | ~48.5 kg | ~30 cm | ~140 rolls / 21,000 m | ~330 rolls / 49,500 m |
Satin Stripe Hotel Sheeting (130 GSM) | 280 cm | 120 m / roll | ~46.0 kg | ~28 cm | ~150 rolls / 18,000 m | ~350 rolls / 42,000 m |
Minimatt Tablecloth / Workwear (230 GSM) | 150 cm | 100 m / roll | ~36.0 kg | ~27 cm | ~330 rolls / 33,000 m | ~740 rolls / 74,000 m |
Intrinsic Dimout Drapery (250 GSM) | 280 cm | 70 m / roll | ~51.5 kg | ~29 cm | ~135 rolls / 9,450 m | ~315 rolls / 22,050 m |
3-Pass Foam-Coated Blackout (280 GSM) | 280 cm | 50 m / roll | ~42.5 kg | ~28 cm | ~145 rolls / 7,250 m | ~335 rolls / 16,750 m |
To calculate the exact outer roll diameter and gross weight for your custom roll length and tube thickness, open the Fabric Roll Diameter & Weight Calculator.
3. Orientation Geometry: How Roll Width Dictates Container Stowage
Container interior width is fixed at 235 cm (233 cm at the rear door frame), and interior length is 589 cm (20GP) or 1203 cm (40GP/40HQ). This creates three distinct loading geometries:
- 150 cm Standard Width Rolls (
1.50 m): Loaded lengthwise in 8 axial bays along a40HQ(8 × 1.50 m = 12.00 m), or 7 lengthwise bays + 1 crosswise tail bay (7 × 1.52 m + 1.35 m) when end-ties add2–3 cmper roll. - 210 cm to 230 cm Bedding Rolls: Can be stowed crosswise (widthwise) across the
235 cmcontainer width, achieving very high cubic efficiency from front bulkhead to rear doors. - 240 cm to 315 cm Extra-Wide Rolls: Because
240–315 cmexceeds the235 cmcontainer width, these rolls must be loaded lengthwise (axially):- 240 cm rolls:
5 longitudinal bays(5 × 2.40 m = 12.00 mtight fit; typically4 bays of 2.40 m = 9.60 m+2.40 mtail zone). - 280–300 cm rolls:
4 longitudinal bays(4 × 2.95 m = 11.80 m) inside a40HQ. - 315 cm rolls:
3 longitudinal bays(3 × 3.18 m = 9.54 m) +2.45 mmixed/short-width tail bay. Pro Tip: Ordering 15–20% of your container in220–240 cmpillowcase or twin-size width allows the mill to pack the remaining2.45 mtail bay to 100% capacity!
- 240 cm rolls:
4. Packaging Specs That Prevent Transit Crush & Telescoping
Ocean transit across the Pacific, Red Sea, or Cape of Good Hope subjects bottom-tier rolls to 1,200–1,800 kg of vertical compression for 25 to 45 days. Specify these four packaging rules on your purchase order:
- Paper Tube Wall Thickness: Require
4–5 mmspiral-wound kraft cores for150 cmrolls (≤ 35 kg), and8–12 mmhigh-compression cores (76 mm / 3"inner diameter) for240–315 cmwide-width or coated blackout rolls (40–60 kg). - Honeycomb Pyramid Stacking (
Bilge & Cantline): Stagger upper tiers into the valleys between lower rolls rather than column-stacking core-on-core, distributing vertical load across 6 contact lines. - No Cross-Stacking Coated or Brushed Goods: Never place perpendicular rolls across
280–315 cm3-pass blackout or velvet rolls, which leaves permanent pressure marks (crush bars) every30 cm. - Container Desiccant Poles: Hang
6 to 8calcium-chloride desiccant strips (1,000 geach) inside every40HQto prevent "container rain" condensation when vessels cross tropical-to-temperate temperature zones.
Contact Weaverine's Export Logistics Team for a custom container load plan, or calculate your roll specs now using our Roll Diameter Calculator and Yardage & Meterage Converter.