Loading arithmetic

Dimensions and weights, at every fill level that matters.

Three tables and one formula. Bookmark it, print it, tape it to the forklift — this is the page most worth keeping handy, usually about ninety seconds before someone was going to make an expensive mistake.

Short answer

Gross weight = gallons × 8.34 lb × specific gravity + tare. A full 275 gallon water tote is ≈2,425 lb; a 330 is ≈2,900 lb. Most composite IBCs are rated to 2,800 lb (275 gal) and 3,300 lb (330 gal) maximum gross mass.

Formula: gal × 8.34 × SG + tare
275 gal max gross: 2,800 lb
330 gal max gross: 3,300 lb
Two-high floor load: ≈365 lb/ft²

Work order · 90-second form

Sanity-check a load

Include the product, specific gravity and quantity so the supplier can confirm the stack and the trailer.

Table one

Dimensions and tare, all sizes.

IBC container dimensions and empty weights
Capacity	Litres	L × W × H	Tare	Gross (water)	Two-high height	Stack full
110 gal	416 L	40" × 48" × 28"	78 lb	995 lb	56"	2 high
120 gal	454 L	40" × 48" × 30"	82 lb	1,072 lb	60"	2 high
180 gal	681 L	40" × 48" × 38"	98 lb	1,600 lb	76"	2 high
220 gal	833 L	40" × 48" × 42"	112 lb	1,952 lb	84"	2 high
275 gal	1,041 L	40" × 48" × 46"	130 lb	2,425 lb	92"	2 high
330 gal	1,249 L	40" × 48" × 53"	148 lb	2,900 lb	106"	2 high
350 gal	1,325 L	46" × 48" × 55"	168 lb	3,080 lb	110"	1 high
550 gal	2,082 L	52" × 46" × 74"	540 lb	5,120 lb	148"	1 high

Table two

Gross weight by product, and whether you may stack it.

Specific gravity is the number people forget. It is also the number that decides whether your rack is holding two totes or slowly failing.

Gross weight by product density — 275 and 330 gallon composite IBCs
Product	Specific gravity	275 gal gross	330 gal gross	Stacking verdict
Water	1.00	2,425 lb	2,900 lb	Stack 2 high
Diesel / fuel oil	0.85	2,080 lb	2,480 lb	Stack 2 high
Vegetable oil	0.92	2,240 lb	2,670 lb	Stack 2 high
Ethanol	0.79	1,940 lb	2,310 lb	Stack 2 high
Latex emulsion	1.05	2,540 lb	3,040 lb	Stack 2 high
Brine (23%)	1.20	2,880 lb	3,450 lb	Do not stack 330
Liquid fertiliser (28-0-0)	1.28	3,065 lb	3,670 lb	Do not stack
Corn syrup (42 DE)	1.33	3,180 lb	3,810 lb	Do not stack · partial fill
Sulphuric acid (50%)	1.40	3,340 lb	4,000 lb	Partial fill only
Sodium hydroxide (50%)	1.52	3,615 lb	4,335 lb	Partial fill only

Table three

What actually fits on a truck, weight-limited.

Everyone quotes volume counts. Weight is what stops you at the scale.

Loading limits — full 275 gallon water totes, 80,000 lb GVW
Vehicle	Volume capacity	Weight-limited count	Payload used	Governing limit
53' dry van	48 (2 high)	17	41,225 lb	Weight
48' flatbed	40 (2 high)	17	41,225 lb	Weight
26' box truck	24 (2 high)	8	19,400 lb	Weight / GVW
16' box truck	12 (2 high)	5	12,125 lb	Weight / GVW
Sprinter van	4 (1 high)	2	4,850 lb	Weight / GVW
20' sea container	20 (2 high)	17	41,225 lb	Weight
40' sea container	42 (2 high)	17	41,225 lb	Weight

Empty totes invert the problem entirely: 96 empty 275s stacked four high in a 53-foot van weigh 12,480 lb, so you are volume-limited with 67,000 lb of payload spare. That asymmetry is why backhauling empties is cheap and why selling your empties can make sense even some distance from a buyer.

Weight questions

Loads, limits, floors.

Dimensions & weights — FAQ

How do I calculate the weight of a full IBC tote?

Gallons × 8.34 lb × specific gravity, plus the tare weight of the container. Water is 1.0 SG, so a full 275 gallon tote is 275 × 8.34 × 1.0 + 130 = 2,424 lb. Diesel at 0.85 SG is 2,080 lb. A 1.33 SG syrup is 3,180 lb, which exceeds the rated gross mass of most composite units.

What is the maximum gross weight of an IBC tote?

Most 275 gallon composite IBCs are rated for 2,800 lb maximum gross mass and most 330s for 3,300 lb, with the exact figure stamped on the UN marking plate where one exists. That rating governs stacking, racking and transport. Exceeding it does not usually cause an immediate failure — it causes bottle bulge, cage distortion and a delayed failure at the worst moment.

How much floor loading does a stack of IBC totes create?

Two full 275 gallon water totes on one 48 by 40 inch footprint is 4,850 lb across 13.3 square feet — about 365 lb per square foot. Concrete slab-on-grade handles that comfortably. Mezzanines, suspended floors and older warehouse decks frequently do not; get the rated capacity before you double-stack.

What is the tare weight of an empty IBC tote?

125–135 lb for a 275 gallon composite, 140–155 lb for a 330. Stainless bins are far heavier — 310 lb for a 265 gallon 304 unit up to 540 lb for a 550 gallon 316L. Tare varies with pallet base material: steel bases add roughly 10 lb over composite, and plastic bases save about 8 lb.

Master size chart

All eight sizes with footprints, heights and truck counts.

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Storage & stacking guide

Rack ratings, floor loading, UV exposure and inspection points.

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Pickup & delivery

Arranged by partner suppliers.

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IBC reference · on every page

Reference sheets for the numbers people ask about most.

Specifications, grade descriptions, thread standards, weights, gasket selection, freight limits and conversions. Open what you need; none of it is gated.

Container specs14 rows

Typical dimensions for the two common composite sizes. Check the plate on a specific unit.

The two common composite IBC sizes
Attribute	275 gallon	330 gallon
Capacity	275 gal / 1,041 L	330 gal / 1,249 L
Footprint	48" × 40"	48" × 40"
Height	46"	53"
Tare weight	125–135 lb	140–155 lb
Gross, water	≈2,425 lb	≈2,900 lb
Max gross mass	2,800 lb	3,300 lb
Stack, full	2 high	2 high
Stack, empty	4 high	4 high
Two-high stack height	92"	106"
Per 53′ van, volume	48	40
Per 53′ van, weight-limited	17 full	14 full
Fill opening	6" vented or solid	6" vented or solid
Discharge	2" butterfly, S60x6	2" butterfly, S60x6
Forklift entry	4-way	4-way

Grade descriptions6 rows

How grades are commonly described. Ask each supplier for their own written definition.

Common used-tote grade descriptions (definitions vary by supplier)
	Grade A	Grade B	Grade C
Cleaning	Washed or rinsed	Washed	Rinsed or as-is
Bottle	Clear to translucent	Light haze permitted	Staining likely
Odour	None	Faint, product-typical	May be present
Prior contents	Known, benign	Known	May be unknown
Cage	Square, little rust	Sound, cosmetic dents	Cosmetic damage
Typical use	Clean-water and general storage	Industrial and agricultural	Non-potable water, waste, rough duty

Threads & adapters9 rows

The outlet thread decides which adapter you need.

Threads and adapters
Fitting	Specification	Typical use
3" butterfly	3" flange, PP body	Batch dumping, viscous liquids
2" butterfly	S60x6 outlet, EPDM seat	Standard discharge
2" camlock	S60x6 → 2″ male cam	Pump and transfer hose
2" NPT	S60x6 → 2″ male NPT	Rigid plumbing
1" camlock	S60x6 → 1″ male cam	Controlled filling
3/4" GHT	S60x6 → garden hose	Irrigation, wash-down
1/2" spigot	S60x6 → spigot	Hand filling
S60x6	60 mm OD, 6 mm pitch buttress	Common modern outlet thread
S100x8	100 mm OD, 8 mm pitch	Older or European valves — use a bushing

Weights by product10 rows

gallons × 8.34 × specific gravity + tare. The number people skip.

Gross weight by product — the calculation people skip
Product	SG	275 gal gross	330 gal gross	Stack?
Ethanol	0.79	1,940 lb	2,310 lb	Yes
Diesel / fuel oil	0.85	2,080 lb	2,480 lb	Yes — steel bin only
Vegetable oil	0.92	2,240 lb	2,670 lb	Yes
Water	1.00	2,425 lb	2,900 lb	Yes
Latex emulsion	1.05	2,540 lb	3,040 lb	With care
Brine 23%	1.20	2,880 lb	3,450 lb	No
Liquid fertiliser 28-0-0	1.28	3,065 lb	3,670 lb	No
Corn syrup 42 DE	1.33	3,180 lb	3,810 lb	No — partial fill
Sulphuric acid 50%	1.40	3,340 lb	4,000 lb	Partial fill
Sodium hydroxide 50%	1.52	3,615 lb	4,335 lb	Partial fill

Gasket selection9 rows

General guidance only. Confirm compatibility with the product's SDS and your supplier.

Gasket and wetted-part selection
Product family	Gasket	Valve body	Container	Avoid
Water, brine, glycol	EPDM	Polypropylene	Poly IBC	—
Dilute acids	EPDM	Polypropylene	Poly IBC	Brass, carbon steel
Caustics	EPDM	Polypropylene	Poly IBC	Aluminium
Alcohols under 20% ABV	EPDM	Polypropylene	Poly IBC	—
Alcohols over 20% ABV	Viton	Stainless	Stainless bin	Poly bottles
Vegetable and mineral oils	Viton	Polypropylene	Poly IBC	EPDM gaskets
Fuels, diesel, kerosene	Viton	PP or stainless	Steel bin	Poly bottles
Aromatic solvents	Viton	Stainless	316L bin	All poly parts
Flavour, essence, botanical	Viton	Stainless	316L bin	Poly bottles

Freight limits8 rows

Volume capacity and weight capacity are different numbers, and weight wins.

What fits on what — volume and weight limits
Vehicle	Full, 2 high	Weight-limited full	Empty, 4 high	Liftgate
53′ dry van	48	17	96	No
48′ flatbed	40	17	80	No
26′ box truck	24	8	48	Yes
16′ box truck	12	5	24	Yes
Sprinter van	4	2	8	Yes
20′ sea container	20	17	40	No
40′ sea container	42	17	84	No
Drop trailer, 53′	48	17	96	No

Conversions10 rows

The arithmetic that comes up daily.

Common conversions for IBC totes
From	To	Multiply by	Worked example
US gallons	Litres	3.785	275 gal = 1,041 L
Litres	US gallons	0.2642	1,000 L = 264 gal
US gallons of water	Pounds	8.34	275 gal = 2,294 lb
Pounds	Kilograms	0.4536	2,425 lb = 1,100 kg
Inches	Millimetres	25.4	48" = 1,219 mm
Cubic feet	US gallons	7.481	51 ft³ = 381 gal
Cubic yards	Cubic feet	27	1.4 yd³ = 37.8 ft³
psi	Feet of head (water)	2.31	1.7 psi = 3.9 ft
Feet of head	psi	0.433	24 in stand = 0.87 psi
gpm	Litres per minute	3.785	70 gpm = 265 L/min

Vocabulary, in twelve lines

IBC: Intermediate bulk container — anything between a drum and a tanker, in practice 110–550 gallons on a forkliftable base.
Composite IBC: An HDPE bottle inside a welded steel cage on a pallet base. The 275 and 330 gallon workhorses.
Tare: Empty weight of the container: 125–135 lb for a 275, 140–155 lb for a 330.
Gross mass: Container plus contents. Most 275s are rated to 2,800 lb; exceed it and the bottle bulges rather than bursts.
Node: A welded intersection in the cage where load actually transfers. The correct place to inspect.
S60x6: The standard outlet thread: 60 mm OD, 6 mm pitch buttress. Hand tight only.
Prior contents: What the container last held, logged against the original label. The single most consequential fact about any used tote.
Rebottle: A new HDPE bottle fitted into an inspected existing cage — a never-filled interior on a reused frame.
UN 31HA1: Marking for a composite IBC approved for liquids. Belongs to the assembly and carries a service life.
Regrind: Granulated recycled HDPE. Post-industrial IBC regrind goes to pipe, conduit, pallets — never food contact.
Reuse: Putting a container back into service instead of making a new one. It avoids the materials and energy a new container would need.

Full glossary

How quotes work

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Next step

Reusing a tote avoids making a new one.

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