Pipe annular fill material.
Measure the supplied outer void and actual pipe displacement over the filled length.
Read the right quantitative data
Prepared yield per package for the selected material.
Check this ordering assumption
Filling the whole outer cylinder without subtracting the pipe overstates material volume.
This quantity page does not select a firestop, support or sealing system.
A worked quantity method
This illustrative set of supplied inputs demonstrates Measured Annular Pipe Void Fill Bag Calculator. Replace the example measurements and product figures with your own before ordering.
| Supplied input | Metric display | US display |
|---|---|---|
| Chosen product mixed yield per bag | 10 L/bag | 0.353 ft³/bag |
| Measured circular void 1: Measured surrounding void diameter | 0.2 m | 0.66 ft |
| Measured circular void 1: Supplied displaced pipe outer diameter | 0.1 m | 0.33 ft |
| Measured circular void 1: Measured filled length | 1 m | 3.28 ft |
| Measured circular void 1: Identical voids | 1 | 1 |
Supplied fill product bags: 3 bags
- Measured annular void volume
- 0.02 m³
Pure displacement arithmetic; no required clearance or approved sealing detail is inferred.
Open this example in the full calculatorYour measurement and product-data sheet
Record what you know and mark verified items ready. Notes save on this browser after you edit them. Download a copy before clearing browser data.
Measure the supplied outer void and actual pipe displacement over the filled length.
Prepared yield per package for the selected material.
Filling the whole outer cylinder without subtracting the pipe overstates material volume.
Input for Measured Annular Pipe Void Fill Bag Calculator. Record the value with its unit and quantity basis.
Input for Measured Annular Pipe Void Fill Bag Calculator. Record the value with its unit and quantity basis.
Input for Measured Annular Pipe Void Fill Bag Calculator. Record the value with its unit and quantity basis.
Input for Measured Annular Pipe Void Fill Bag Calculator. Record the value with its unit and quantity basis.
Input for Measured Annular Pipe Void Fill Bag Calculator. Record the value with its unit and quantity basis.
Choose your next calculation
Measured Annular Pipe Void Fill Bag Calculator
Subtract a supplied pipe displacement from a measured circular surrounding void and order material by mixed bag yield.
Concrete Bag Calculator
Turn a concrete volume into whole bags using the yield printed on your chosen product.
Turn the estimate into an order
- Confirm that all quantities use the same measured basis and the selected product's current data.
- Keep different products, finishes and handed variants in separate purchase lines.
- Review exact demand and whole-pack purchase quantities before entering your quoted prices.
- Record compatible stock already on hand, then save the remaining order in your browser project.
Measurement and purchase guides
- How to measure and order: pipe stock and supplied fitting quantities
- Short versus long stock for the same pipe cuts: quantity checks
- Separate mixer drum size from usable batch yield
- Do not substitute dry cement volume for prepared concrete yield
- Keep enough precision before converting volume to bags
- When to pool packs across work phases
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Reviewed 6 October 2026. Geometry and purchase arithmetic use your measurements and selected specifications. Calculation scope.