Water Tank Sizes in UAE: Complete Size Guide for All Tank Types
Understanding the range of water tank sizes available in the UAE helps you select the right capacity for your property and ensure your purchase meets UAE Municipality requirements. This guide covers the standard sizes available for all major tank types in the UAE market.
How Tank Sizes Are Described in UAE
Water tank capacity in the UAE is typically expressed in US Gallons (USG), reflecting the American measurement system that has become standard in UAE construction and engineering. All UAE Municipality specifications and supplier catalogs use USG as the primary unit.
The conversion: 1 US Gallon = 3.785 litres. 1,000 litres = 264.2 US Gallons.
Dimensions (height, diameter, length) are typically given in millimetres (mm) or metres.
PVC Polyethylene Vertical Tank Sizes
| Capacity (USG) | Capacity (Litres) | Diameter (mm) | Height (mm) |
|---|---|---|---|
| 50 | 190 | 580 | 740 |
| 100 | 379 | 730 | 940 |
| 150 | 568 | 860 | 1,040 |
| 200 | 757 | 950 | 1,200 |
| 250 | 946 | 1,000 | 1,350 |
| 300 | 1,136 | 1,100 | 1,450 |
| 500 | 1,893 | 1,250 | 1,850 |
| 750 | 2,839 | 1,400 | 2,200 |
| 1,000 | 3,785 | 1,600 | 2,400 |
| 1,500 | 5,678 | 1,800 | 2,800 |
| 2,000 | 7,571 | 2,000 | 3,100 |
| 3,000 | 11,356 | 2,200 | 3,600 |
| 4,000 | 15,142 | 2,400 | 4,000 |
| 6,000 | 22,712 | 2,700 | 4,600 |
Dimensions are approximate and vary between manufacturers. Confirm actual dimensions with your supplier before installation.
PVC Polyethylene Horizontal Tank Sizes
| Capacity (USG) | Capacity (Litres) | Diameter (mm) | Length (mm) |
|---|---|---|---|
| 100 | 379 | 700 | 1,150 |
| 200 | 757 | 900 | 1,450 |
| 300 | 1,136 | 1,000 | 1,700 |
| 500 | 1,893 | 1,100 | 2,200 |
| 750 | 2,839 | 1,250 | 2,800 |
| 1,000 | 3,785 | 1,400 | 3,200 |
| 1,500 | 5,678 | 1,600 | 3,800 |
| 2,000 | 7,571 | 1,700 | 4,300 |
Overall height on saddle supports: approximately tank diameter plus 200 to 350mm for saddle height.
GRP Fiberglass Tank Sizes
GRP tanks are available in a wider range of sizes than polyethylene tanks, including custom sizes manufactured to project-specific dimensions. Standard catalog sizes from leading UAE GRP tank suppliers:
GRP Vertical Tanks
| Capacity (USG) | Capacity (Litres) | Diameter (mm) | Height (mm) |
|---|---|---|---|
| 300 | 1,136 | 900 | 2,000 |
| 500 | 1,893 | 1,000 | 2,400 |
| 750 | 2,839 | 1,200 | 2,800 |
| 1,000 | 3,785 | 1,300 | 3,000 |
| 1,500 | 5,678 | 1,500 | 3,400 |
| 2,000 | 7,571 | 1,700 | 3,800 |
| 3,000 | 11,356 | 1,900 | 4,400 |
| 5,000 | 18,927 | 2,200 | 5,500 |
| 7,500 | 28,390 | 2,500 | 6,500 |
| 10,000 | 37,854 | 2,700 | 7,200 |
| 15,000 | 56,781 | 3,000 | 9,000 |
GRP Horizontal Tanks
GRP horizontal tanks are available in similar capacity ranges to vertical tanks, with larger diameter-to-length ratios giving them a lower profile. Custom dimensions are commonly produced for specific site constraints.
Underground Tank Sizes
UAE underground polyethylene tanks are designed for below-grade installation with high-pressure ratings to resist soil loading:
| Capacity (USG) | Capacity (Litres) | Diameter (mm) | Length (mm) |
|---|---|---|---|
| 365 | 1,382 | 1,200 | 1,700 |
| 500 | 1,893 | 1,300 | 2,000 |
| 750 | 2,839 | 1,400 | 2,700 |
| 1,000 | 3,785 | 1,500 | 3,200 |
| 1,500 | 5,678 | 1,600 | 4,200 |
| 2,300 | 8,706 | 1,800 | 5,400 |
Septic Tank Sizes
GRP fiberglass septic tanks are available from very small residential sizes to very large commercial systems:
300 USG (1,136L), 500 USG (1,893L), 750 USG (2,839L), 1,000 USG (3,785L), 1,500 USG (5,678L), 2,000 USG (7,571L), 3,000 USG (11,356L), 5,000 USG (18,927L), 7,500 USG (28,390L), 10,000 USG (37,854L), 15,000 USG (56,781L), 20,000 USG (75,708L).
Custom sizes for large infrastructure and industrial projects are available from major GRP manufacturers in UAE.
Choosing the Right Size
If you are unsure which capacity is right for your property, the Choosing the Right Tank Capacity guide on this site walks through the sizing calculation for residential, commercial, and industrial properties.
KHAZAAN can also provide free sizing guidance based on your property details. Contact us on WhatsApp +971509583173 or visit khazaan.ae.