From compact 1,000 litre tanks to 2,500 litre capacities — typical sizes, rough dimensions, and how to choose the right one for your home and space.
Oil tanks come in a range of capacities, and picking the right one is a balance of how much oil you use, how much space you have, and how often you want deliveries. Here's a quick guide to the common domestic sizes we install across Wiltshire.
| Capacity | Best for | Rough dimensions* |
|---|---|---|
| 1,000 litres | Smaller homes, tighter spaces | ~1.2–1.4m W × 0.8–1.2m D × 1.3–1.6m H |
| 1,200–1,350 litres | The "standard" average UK home | ~1.8m W × 0.9m D × 1.3m H |
| 2,000–2,500 litres | Larger / rural homes, fewer deliveries | ~1.9–2.4m W × 1.1–1.3m D × 1.5–1.8m H |
| Slimline (various) | Narrow access, alongside walls | Tall & narrow footprint |
| 2,500 litres + | Large homes, light commercial | Priced & sized individually |
*Dimensions vary by manufacturer and shape — confirmed at survey.
A bigger tank means fewer deliveries and the chance to buy oil when prices dip — but it costs more up front and needs more space and a stronger base. We'll help you weigh it up on the survey.
Capacity affects more than space — tanks over 2,500 litres always require bunding, and position is governed by fire-separation rules. See our regulations guide for the full picture.
Most UK homes use a 1,000–1,350 litre tank. Larger or rural homes, or those wanting fewer deliveries, often choose 2,000–2,500 litres. The right size depends on usage, space and budget.
The 1,000–1,200 litre bunded tank is the most common choice for an average UK home.
Typically around 1.2–1.4m wide, 0.8–1.2m deep and 1.3–1.6m tall, though dimensions vary by model and whether it's standard or slimline.
We'll recommend the right size for your home and space. Drop us a message and someone will come back to you as soon as possible.
Send Us a Message