AS1940 Compliance
Collapsible Bund Configurator
Capacity Calculator & Custom Quote Builder
Calculate AS1940-compliant containment requirements, select materials, configure dimensions, and request a custom bund quote — all in one tool.
1
Enter Stored Volumes
Enter the liquid volume and quantity for each container type (drums, IBCs, totes, tanks).
AS1940 requirement: Secondary containment must be sized to the greater of 110% of the largest single liquid volume stored OR 25% of the total liquid volume stored.
Liquid volume per container (L)
Quantity
Minimum Containment Required (AS1940)
1,100 L
Based on 110% of largest container — 110% rule: 1,100 L | 25% rule: 517 L
💧 Outdoor storage tip: If storage is outdoors, consider adding allowance for rainfall accumulation and freeboard depending on site conditions and local regulations.
AS1940 Rule Breakdown
3 × 23 L
2 × 1,000 L
2
Select Bund Material
Choose based on the chemical stored, site environment, and UV exposure requirements.
Material Recommendation
PVC 900 GSM suitable for hydraulic oil.
✓
PVC 900 GSM
Yellow · 5-yr UV · General purpose · Most economical
✓
PVC 1370 GSM
Black · 5-yr UV · Heavy-duty · Higher puncture resistance
✓
XR‑5 1020 GSM
Black · 10-yr UV · Chemical resistant · Premium
Material Property Comparison
PVC 900 GSM
PVC 1370 GSM
XR-5 1020 GSM
3
Bund Configurator
Enter your required internal dimensions. The configurator calculates containment capacity and estimated footprint.
Min 1.0 m · Max 20.0 m
Min 1.0 m · Max 20.0 m
Min 1
✓ Drain valve
○ Ground anchors
✓ Cover / lid
○ Forklift pockets
✓ Pump-out fitting
Live Bund Preview
Containment Capacity
4,800 L
internal dimensions
Estimated Footprint
4.7 × 4.7 m
+0.7 m each direction
✓ This configuration meets the AS1940 minimum of 1,100 L
4
Your Bund Configurations
Review and remove configurations before submitting. Multiple sizes can be included in one request.
| # | Internal (L × W × H) | Material | Capacity | Footprint | Qty | Accessories | |
|---|---|---|---|---|---|---|---|
| No configurations added yet. | |||||||
Please add at least one configuration before requesting a quote.