Plan foundations for towers with confident quantities quickly. Choose rectangular, circular, or octagonal footing sizes. Get volumes, weights, trucks, and downloads in minutes anywhere.
| Case | Footing | Key dimensions | Count | Waste | Concrete volume (m³) |
|---|---|---|---|---|---|
| A | Rectangular | 2.5 × 2.5 × 0.8 + pedestal 0.9 × 0.9 × 1.2 | 1 | 5% | ~5.66 |
| B | Circular | Ø2.8 × 0.8 + pedestal Ø0.9 × 1.2 | 2 | 7% | ~10.92 |
| C | Tapered Rectangular | h0.8, top 2.2×2.2, bottom 2.8×2.8 | 4 | 5% | ~21.79 |
Tower foundations can dominate concrete quantities on telecom and utility sites because each leg may require a separate pad plus a pedestal. A small dimension error compounds across multiple legs and pours, affecting budget and delivery scheduling. This calculator converts common foundation shapes into a single concrete quantity, then applies count and waste so ordering matches field reality.
Typical tower bases use isolated square or rectangular pads, circular pads for drilled shafts or caisson caps, and stepped footings where bearing needs increase with depth. Octagonal pads are also common because they align well with rebar layouts and reduce sharp corners that can crack during stripping. The tool supports frustums for tapered pedestals and lets you include a pedestal volume when a raised base is detailed.
Ready-mix orders usually include a contingency for overbreak, form bulge, tremie losses, and sampling cylinders. Many teams carry 3–7% waste for formed pads and 7–12% where excavation is irregular or access is tight. Use the waste factor to move from theoretical volume to order volume without changing the geometry, then round up to practical truck increments.
For logistics and batching checks, the calculator estimates mass using concrete density. Normal-weight concrete is commonly near 2400 kg/m³ (about 150 lb/ft³), while lightweight mixes can be lower depending on aggregate. Mass helps verify transport limits and supports carbon or cement-content reporting when required.
When excavation is enabled, the tool estimates soil removal from plan dimensions and depth, which is useful for spoil planning and disposal tickets. Compare excavation volume with shoring or slope requirements and confirm working space around formwork, anchor-bolt cages, and rebar cover. Always reconcile results with drawings, bar schedules, and geotechnical recommendations before issuing final quantities.
Choose one unit set and enter every dimension in the same unit. The calculator converts internally and reports volume in cubic meters and cubic feet for quick cross-checking.
Enter the upper and lower plan dimensions and the step height. The tool treats the footing as stacked prisms, totals the concrete volume, then applies count and waste.
Yes. When enabled, pedestal volume is added to the base footing volume. Use it for stem blocks, tower plinths, or anchor-bolt assemblies that rise above grade.
Use site practice and specification guidance. Formed pads often use 3–7%, while irregular excavations, tremie placements, or tight access can justify 7–12% or more.
Enable excavation and enter the excavation plan size and depth. This is a geometric estimate only; add allowances for side slopes, shoring clearances, and unsuitable material removal as needed.
Mass equals waste-adjusted volume multiplied by density. The default density matches common normal-weight concrete, but you can change it if your mix design or aggregate type differs.
No. It is a fast estimator for planning and checks. Final quantities should be taken from the latest drawings and specifications, including embeds, blockouts, and tolerances.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.