Precast concrete
2,500 Gallon Septic Tank Dimensions
Wilbert Precast product 1617 is a 2,500-gallon single-compartment concrete tank measuring 12 ft × 6 ft 9 in × 6 ft 5 in outside. Other models can have a different footprint.
| Specification | US customary | Metric |
|---|---|---|
| Exterior length × width × height | 12 ft × 6 ft 9 in × 6 ft 5 in | 3.66 m × 2.06 m × 1.96 m |
| Rated liquid capacity | 2,500 US gal | 9,464 L |
| Shipping weight | 15,270 lb | 6,926 kg |
What this chart establishes
This is one Wilbert Precast product specification. The exterior dimensions do not establish wall thickness, freeboard, burial depth, traffic rating, installation clearances, or local approval.
Use the right measurements
Use the model drawing and permit record for excavation or replacement work. To estimate liquid volume, enter internal length, width, and liquid depth in the volume calculator.
Open the septic tank volume calculatorCompare another capacity
Common questions
What are the dimensions of a 2,500-gallon septic tank?
The Wilbert Precast product example measures 12 ft × 6 ft 9 in × 6 ft 5 in outside, or about 3.66 m × 2.06 m × 1.96 m. Confirm the drawing for the exact model you are buying or servicing.
Are all 2,500-gallon septic tanks the same size?
No. The gallon rating describes liquid capacity. Material, wall thickness, compartments, structural rating, and manufacturer can change the exterior dimensions.