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Useful Info

Reference & Resources.

Container specifications, U.S. road weight limits, web services, and handy industry links — everything you need in one place.

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U.S. Road Weight Limits

Federal weight, bridge, and size references (PDF).

U.S. Road Weight Limits Federal Bridge Laws Federal Size Regulations Federal Bridge Gross Weight Formula
Container Specifications

Shipping Container Specs

For general information only. Please contact your shipping line for exact specifications, as dimensions and weights vary by owner and build.

20 Feet

TypeDV — Dry Van / General
Max Gross Weight52,910 lbs (24,000 kg)
Tare Weight4,850 lbs (2,200 kg)
Max Payload48,060 lbs (21,800 kg)
Length19′ 4 23/64″ (5,902 mm)
Width7′ 8 33/64″ (2,392 mm)
Height7′ 10 11/64″ (2,392 mm)
Door Opening W7′ 8 11/64″ (2,341 mm)
Door Opening H7′ 5 49/64″ (2,280 mm)
Volume1,172 cu ft (33.2 m³)
General use: bundles, cartons, boxes, loose cargo, furniture, etc. All-steel construction.
TypeOT — Open Top
Max Gross Weight52,910 lbs (24,000 kg)
Tare Weight4,717 lbs (2,140 kg)
Max Payload48,192 lbs (21,860 kg)
Length19′ 4 1/8″ (5,894 mm)
Width7′ 8 5/16″ (2,344 mm)
Height7′ 8 3/8″ (2,347 mm)
Door Opening W7′ 7 15/16″ (2,336 mm)
Door Opening H7′ 5 1/2″ (2,275 mm)
Volume1,112 cu ft (31.5 m³)
General use: tall/large-piece cargo loaded through the top — machinery, sheet glass, marble, lumber. Door headlock removable steel.
TypeFR — Flat Rack
Max Gross Weight56,000 lbs (25,400 kg)
Tare Weight6,790 lbs (3,080 kg)
Max Payload49,210 lbs (22,320 kg)
Length19′ 7 3/4″ (5,988 mm)
Width7′ 10 3/8″ (2,398 mm)
Height7′ 7 3/8″ (2,231 mm)
Door OpeningN/A
VolumeN/A
General use: awkward and oversize loads — machinery, cables, drums, sheet and steel coils, heavy vehicles. Steel.
TypeRF — Reefer
Max Gross Weight56,000 lbs (25,400 kg)
Tare Weight6,330 lbs no genset (2,870 kg)
Max Payload49,670 lbs no genset (22,530 kg)
Length17′ 10 3/4″ (5,460 mm)
Width7′ 4 1/16″ (2,240 mm)
Height7′ 3 1/2″ (2,225 mm)
Door Opening W7′ 4 1/6″ (2,240 mm)
Door Opening H7′ 1 5/8″ (2,180 mm)
General use: perishable cargo — vegetables, fruit, meat, etc. Aluminum.
TypeOS — Open Side
Max Gross Weight56,000 lbs (25,400 kg)
Tare Weight6,460 lbs (2,930 kg)
Max Payload49,540 lbs (22,470 kg)
Length19′ 4 1/8″ (5,896 mm)
Width7′ 6 15/16″ (2,310 mm)
Height7′ 4 49/64″ (2,255 mm)
Door Opening W7′ 8 3/64″ (2,236 mm)
Door Opening H6′ 5 5/32″ (1,960 mm)
Volume1,094.5 cu ft (31 m³)
General use: large pieces that can't be loaded through the doors; easy loading/unloading at railway sidings. Steel.
TypeBK — Bulk
Max Gross Weight52,910 lbs (24,000 kg)
Tare Weight6,180 lbs (2,300 kg)
Max Payload46,340 lbs (21,200 kg)
Length19′ 4″ (5,988 mm)
Width7′ 8″ (2,332 mm)
Height7′ 9″ (2,338 mm)
Door Opening W7′ 8″ (2,340 mm)
Door Opening H7′ 5″ (2,263 mm)
Volume1,144 cu ft (32.4 m³)
General use: dry free-flowing materials — chemicals, powders, granules, cement, flour, milk powder. Steel and fiberglass.
TypeTK — ISO Tank
Max Gross Weight71,650 lbs (32,500 kg)
Tare Weight9,998 lbs (4,535 kg)
Max Payload61,652 lbs (27,965 kg)
Length37′ 10 1/2″ (11,550 mm)
Width7′ 4 1/2″ (2,250 mm)
Height7′ 3 1/2″ (2,215 mm)
Door Opening W7′ 4 1/2″ (2,250 mm)
Door Opening H7′ 1″ (2,160 mm)
IMO1: hazardous substances (toxic, corrosive, highly flammable liquids). Non-hazardous tanks: oils, plasticizers, resins, natural/synthetic latex, milk, still beers, wine, mineral. Stainless steel.

40 Feet

TypeDV — Dry Van / General
Max Gross Weight67,200 lbs (30,480 kg)
Tare Weight8,380 lbs (3,800 kg)
Max Payload58,820 lbs (26,680 kg)
Length39′ 5 45/64″ (12,032 mm)
Width7′ 8 33/64″ (2,350 mm)
Height7′ 10 7/64″ (2,390 mm)
Door Opening W7′ 8 3/64″ (2,338 mm)
Door Opening H7′ 5 49/64″ (2,280 mm)
Volume2,387 cu ft (67.6 m³)
General use: bundles, cartons, boxes, loose cargo, furniture, etc. All-steel construction.
TypeHC — High Cube
Max Gross Weight67,200 lbs (30,480 kg)
Tare Weight8,600 lbs (3,900 kg)
Max Payload58,600 lbs (26,580 kg)
Length39′ 5 47/64″ (12,033 mm)
Width7′ 8 33/64″ (2,350 mm)
Height8′ 10 1/8″ (2,695.5 mm)
Door Opening W7′ 8 3/64″ (2,338 mm)
Door Opening H8′ 5 49/64″ (2,585 mm)
Volume2,690 cu ft (76.2 m³)
Same as dry containers, but higher volume capacity. All-steel construction.
TypeOT — Open Top
Max Gross Weight67,200 lbs (30,480 kg)
Tare Weight8,158 lbs (3,700 kg)
Max Payload59,049 lbs (26,780 kg)
Length39′ 5 1/2″ (12,027 mm)
Width7′ 8 5/16″ (2,344 mm)
Height7′ 8 3/8″ (2,347 mm)
Door Opening W7′ 7 15/16″ (2,336 mm)
Door Opening H7′ 5 1/2″ (2,275 mm)
Volume2,365.6 cu ft (67.0 m³)
General use: tall/large-piece cargo loaded through the top — machinery, sheet glass, marble, lumber. Door headlock removable steel.
TypeFR — Flat Rack
Max Gross Weight99,202 lbs (45,000 kg)
Tare Weight11,683 lbs (5,300 kg)
Max Payload87,518 lbs (39,700 kg)
Length39′ 7″ (12,064 mm between headers)
Width7′ 9″ (2,369 mm deck width)
Loading Height1,943 mm
Door OpeningN/A
VolumeN/A
General use: awkward and oversize loads — machinery, cables, drums, sheet and steel coils, heavy vehicles. Steel.
TypeRF — Reefer
Max Gross Weight71,650 lbs (32,500 kg)
Tare Weight9,998 lbs (4,535 kg)
Max Payload61,652 lbs (27,965 kg)
Length37′ 10 1/2″ (11,550 mm)
Width7′ 4 1/2″ (2,250 mm)
Height7′ 3 1/2″ (2,215 mm)
Door Opening W7′ 4 1/2″ (2,250 mm)
Door Opening H7′ 1″ (2,160 mm)
General use: perishable cargo — vegetables, fruit, meat, etc. Aluminum and stainless steel.
TypeRH — Reefer High Cube
Max Gross Weight71,650 lbs (32,500 kg)
Tare Weight10,210 lbs (4,630 kg)
Max Payload61,440 lbs (27,870 kg)
Length38′ (11,583 mm)
Width7′ 6″ (2,286 mm)
Height8′ 4 9/16″ (2,554 mm)
Door Opening W7′ 6 5/16″ (2,294 mm)
Door Opening H8′ 5 1/4″ (2,571 mm)
Volume2,387 cu ft (67.6 m³)
Same as 40′ reefer, but higher volume capacity. Aluminum and stainless steel.

45 Feet

TypeHC — High Cube
Max Gross Weight67,297 lbs (30,480 kg)
Tare Weight10,693 lbs (4,850 kg)
Max Payload56,504 lbs (25,630 kg)
Length44′ 6″ (13,558 mm)
Width7′ 9″ (2,350 mm)
Height8′ 10″ (2,695 mm)
Door Opening W7′ 8″ (2,340 mm)
Door Opening H8′ 6″ (2,585 mm)
Volume3,045 cu ft (85.9 m³)
Same as dry containers, but higher volume capacity. Steel.
Industry Links

Helpful External Resources

Note: some federal reference links from the prior site pointed to a legacy GPO system that has been retired; the resources above point to current official sources. Verify the exact regulation text with the issuing agency.

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