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Granby Industries · 330 gal · manufacturer-verified

Granby 330 Gallon Vertical Oil Tank (205201)

Granby Industries makes steel residential heating-oil tanks in the US and Canada, sold under its own name. Its 275 and 330 gallon UL-80 tanks are the obround (flat-sided oval) shape found in most basements, made for either standing upright (vertical) or lying on their side (horizontal).

Enter your stick reading
As published by Granby Industries
ModelStandard Residential Oil Storage Tank UL-80 (330 US gal, Vertical, 12 gauge)
Part / model number205201 / 205201G
Rated capacity330 US gal
H (height)44 in
W (width)27 in
L (length)72 in
Empty weight290 lbs
Inside or outside?not stated (outside/inside not specified)
“205201 / 205201G 330 Vertical 12 44″ 27″ 72″ 290 (columns: PRODUCT # CAPACITY MODEL GAUGE THICKNESS DIMENSIONS H W L WEIGHT lbs)” — Granby Industries, retrieved 2026-11-01

Dimension drawing

SECTIONH = 44 inW = 27 inSIDE VIEWL = 72 inh
Section 27 × 44 in (width × height as installed), length 72 in. Dimensions as printed by Granby. The shaded area shows an example liquid level. The drawing is not to scale.

Gallons by the inch

Worked from Granby's printed H × W × L (44 × 27 × 72 in) as an obround shape, the tank holds 321.5 gal brim-full against its 330 gal rating.

Granby Industries's chart, exactly as printed — with the geometric figure from the published dimensions alongside
DepthUS galGeometryDiff.
1″2.12.1-0
2″6.06+0
3″10.810.8-0
4″16.516.5+0
5″22.822.8+0
6″30.229.5+0.7
7″37.536.7+0.8
8″45.244.3+0.9
9″53.252.1+1.1
10″61.460.1+1.3
11″69.868.3+1.5
12″78.376.6+1.7
13″86.985+1.9
14″95.593.4+2.1
15″104.1101.9+2.2
16″112.7110.3+2.4
17″121.3118.7+2.6
18″129.9127.1+2.8
19″138.5135.5+3
20″147.1143.9+3.2
21″155.7152.3+3.4
22″164.3160.8+3.5
23″172.9169.2+3.7
24″181.5177.6+3.9
25″190.1186+4.1
26″198.7194.4+4.3
27″207.3202.8+4.5
28″215.9211.3+4.6
29″224.5219.7+4.8
30″233.1228.1+5
31″241.7236.5+5.2
32″250.3244.9+5.4
33″258.8253.2+5.6
34″267.2261.4+5.8
35″275.4269.5+5.9
36″283.4277.3+6.1
37″291.1284.8+6.3
38″298.4292+6.4
39″305.3298.8+6.5
40″311.7305+6.7
41″317.5310.7+6.8
42″322.5315.6+6.9
43″326.4319.4+7
44″328.6321.5+7.1

Printed on the chart: “PRECISION IS ABOUT +/- 2%. THIS CHART IS NOT INTENDED TO BE USED FOR PURCHASES OR SALES OF ANY PRODUCTS.”

What we found checking the maker's documents

  • Granby Industries's chart tops out at 328.6 gal at 44 in; the geometry from the printed dimensions gives 321.5 gal. The two agree closely in the rounded bottom few inches and then the maker's chart runs about 2.2 % higher — consistent with the printed H × W × L being nominal rather than exact. Where they differ, use the maker's chart.

Related: 275 gal oil tank chart · when will my oil run out? · all manufacturer tanks. Dimensions differ from your tank? Measure it and use the tank volume calculator.

Cite this page

Copy a reference for this page. The data on this page comes from the maker's own documents. Also cite the document in the sources list.

APA (7th edition)

Sri Murugan Systems. (2026, November 1). Granby 330 gallon vertical oil tank (205201) chart. tankvolumecalc.com. https://tankvolumecalc.com/tanks/granby/330-gallon-vertical-oil-tank-205201/

BibTeX
@misc{srimurugansystems2026granby330gallonverticaloiltank205201,
  author = {{Sri Murugan Systems}},
  title = {{Granby 330 Gallon Vertical Oil Tank (205201) Chart}},
  year = {2026},
  month = nov,
  howpublished = {\url{https://tankvolumecalc.com/tanks/granby/330-gallon-vertical-oil-tank-205201/}},
  url = {https://tankvolumecalc.com/tanks/granby/330-gallon-vertical-oil-tank-205201/},
  note = {tankvolumecalc.com, accessed 2026-11-01}
}

Last updated 1 November 2026.

Sources and standards

  1. Standard Residential Oil Storage Tank UL-80 | Granby Industries (US site) — 'Available Models' tableGranby Industries — manufacturerhttps://www.granbyindustries.com/en-us/products/standard-residential-oil-storage-tank-ul-80/not shown on page
  2. Brochure Residential and Light Commercial Tanks (file 2606_GranbyInd_Brochure_ResidentialTanks_USA_WEB.pdf)Granby Industries — manufacturerhttps://www.granbyindustries.com/app/uploads/2026/05/2606_GranbyInd_Brochure_ResidentialTanks_USA_WEB.pdffilename prefix 2606; uploaded 2026/05 per URL path
  3. SI0060 GENERIC DRAWING FOR VERTICAL UL80 TANKSGranby Industries — manufacturerhttps://www.granbyindustries.com/app/uploads/2026/04/SI0060_D.W-GENERIC-DRAWING-FOR-VERTICAL-UL80-TANKS.pdf© 2024; 'FOR PUBLICATION'; revision letter in filename (SI0060_D / SI0062_D)
  4. CAPACITY CHART FOR VERTICAL TANKS (Granby Industries L.P.)Granby Industries — manufacturerhttps://www.granbyindustries.com/app/uploads/2026/04/GranbyInd_Capacity-Chart_VerticalTanks_USA_v1.pdffile name ..._USA_v1.pdf; uploaded 2026/04 per URL path
  5. Methodology — partial-fill formulas used for the geometric figurestankvolumecalc.comhttps://tankvolumecalc.com/methodology/

Every linked source above was retrieved and checked on 2026-11-01.