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Container Specifications

Choose the right equipment for your shipment. Explore planning specifications for Dry, Reefer, Flat Rack and Open Top containers — including typical inside dimensions, door opening and capacity guidance.

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Equipment overview Planning dimensions Reefer insights

Find the right container for your cargo profile.

Container specifications differ slightly by shipping line, manufacturer, floor type and CSC rating. The values below are typical planning references used for early feasibility checks and shipment preparation.

If you’re shipping temperature-controlled cargo, OOG (out-of-gauge), heavy machinery or awkward loads, we’ll recommend the right equipment and safe loading approach.

Windwalker Logistics container specification guide for dry, reefer, flat rack and open top containers

Equipment types

Dry · Reefer · Flat Rack · Open Top

Expand each equipment type to view typical specifications and best-use scenarios.

When to use

Most common container type for cartons, pallets, consumer goods, industrial cargo and general freight.

  • General cargo, pallets, cartons, bagged goods
  • Most FCL shipments across standard trade lanes
  • Select High Cube for extra height / volume
Typical planning specs
Dimensions (m), door opening, capacity & payload
Converter
Type Internal (L × W × H) Door (W × H) Volume Typical Payload
20’ Dry (20’ DC) L 5.90 × W 2.35 × H 2.39 W 2.34 × H 2.28 ~33 m³ Up to ~28,000 kg*
40’ Dry (40’ DC) L 12.03 × W 2.35 × H 2.39 W 2.34 × H 2.28 ~67 m³ Up to ~28,000 kg*
40’ High Cube (40’ HC) L 12.03 × W 2.35 × H 2.69 W 2.34 × H 2.58 ~76 m³ Up to ~28,000 kg*
*Payload varies by line and tare weight. Confirm max gross & payload at booking.

Windwalker planning support

Share your cargo dimensions, weight and pickup/delivery locations — we’ll confirm equipment fit, advise on loading/securement and help plan the most efficient routing.

When to use

For cargo that must stay within a temperature range during transit. Internal volume is slightly reduced due to insulation and machinery.

  • Pharma, food, perishables, chemicals requiring temperature control
  • Setpoint temperature and ventilation settings as per cargo needs
  • Allow air circulation space; avoid blocking T-floor airflow
Typical planning specs
Dimensions (m), door opening, capacity & payload
Converter
Type Internal (L × W × H) Door (W × H) Volume Typical Payload
20’ Reefer L ~5.45 × W ~2.28 × H ~2.26 W ~2.28 × H ~2.26 ~28–29 m³ Varies by model*
40’ Reefer (Standard) L ~11.55 × W ~2.28 × H ~2.26 W ~2.28 × H ~2.26 ~58–60 m³ Varies by model*
40’ High Cube Reefer L ~11.55 × W ~2.28 × H ~2.55 W ~2.28 × H ~2.55 ~67–69 m³ Varies by model*
*Reefer specs vary widely by manufacturer (e.g., internal length/height, airflow floor, tare). Always confirm the exact unit specs.

Windwalker planning support

Share your cargo dimensions, weight and pickup/delivery locations — we’ll confirm equipment fit, advise on loading/securement and help plan the most efficient routing.

When to use

Open-sided equipment for over-width / over-height cargo. Ideal for machinery, project cargo and heavy lifts.

  • Over-width / over-height cargo not suitable for closed containers
  • Heavy machinery, steel structures, pipes and vehicles
  • Requires proper lashing and engineering approval (OOG)
Typical planning specs
Dimensions (m), door opening, capacity & payload
Converter
Type Internal (L × W × H) Door (W × H) Volume Typical Payload
20’ Flat Rack Platform L ~5.90 × W ~2.35 N/A (open) N/A Higher payload range*
40’ Flat Rack Platform L ~12.05 × W ~2.35 N/A (open) N/A Higher payload range*
*Payload depends on flat rack type and CSC rating. OOG shipments require lashing plan and carrier approval.

Windwalker planning support

Share your cargo dimensions, weight and pickup/delivery locations — we’ll confirm equipment fit, advise on loading/securement and help plan the most efficient routing.

When to use

Designed for cargo that must be loaded from the top (crane) or exceeds door height. Supplied with tarpaulin/cover options.

  • Over-height cargo (within carrier limits) or crane-loaded pieces
  • Machinery, marble blocks, glass, industrial equipment
  • Verify top clearance & securing requirements
Typical planning specs
Dimensions (m), door opening, capacity & payload
Converter
Type Internal (L × W × H) Door (W × H) Volume Typical Payload
20’ Open Top L ~5.90 × W ~2.35 × H ~2.35 W ~2.34 × H ~2.28 ~32–33 m³ Up to ~28,000 kg*
40’ Open Top L ~12.03 × W ~2.35 × H ~2.35 W ~2.34 × H ~2.28 ~65–66 m³ Up to ~28,000 kg*
*Exact dimensions and payload vary by line. Over-height bookings require pre-approval and safe securing plan.

Windwalker planning support

Share your cargo dimensions, weight and pickup/delivery locations — we’ll confirm equipment fit, advise on loading/securement and help plan the most efficient routing.

Important notes before booking

  • Specifications are indicative for planning; exact values vary by equipment model and carrier.
  • For OOG cargo (over-height/over-width), carrier approval and lashing plan are required.
  • For reefer cargo, maintain airflow clearance and confirm setpoint/ventilation requirements.
  • For heavy cargo, validate road transport restrictions, axle limits and terminal handling feasibility.

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Share your cargo details and our logistics specialists will respond with the most efficient routing options, costs and transit timelines — tailored to your cargo.