Plan gel bait quantities for buildings with confidence. Choose spot or line methods, add waste. Keep every treatment visit accurate, documented, and budget friendly.
| Scenario | Area | Spot density | Gel/spot | Line length | Gel rate | Visits | Waste | Estimated gel | Cartridges (30 g) |
|---|---|---|---|---|---|---|---|---|---|
| Office floor | 180 sqm | 0.8 | 0.25 g | 0 m | — | 1 | 10% | 39.6 g | 2 |
| Food prep zone | 120 sqm | 1.6 | 0.35 g | 65 m | 1.2 g/m | 2 | 15% | 213.9 g | 8 |
| Basement services | 250 sqm | 1.0 | 0.30 g | 120 m | 1.0 g/m | 1 | 10% | 214.5 g | 8 |
This calculator helps estimate gel bait quantity for structured building treatments. It converts area and edge measurements into grams, then rounds to cartridge counts to support procurement, scheduling, and documentation. Calibrated estimates reduce last‑minute substitutions and keep crews consistent across floors.
Start by confirming the serviceable footprint. Use drawings, room lists, or measured takeoffs, and exclude sealed voids or non-accessible zones. Enter the planned number of visits so repeat services are covered in the material plan. Record the unit choice and conversion outputs to align with client reporting templates. Include cleaning schedules, moisture sources, and occupant activity when forecasting seasonal pressure.
For spot work, set a density that matches risk, sanitation, and monitoring results. Multiply area in square meters by spots per square meter, then apply grams per spot. Smaller dots improve distribution, while larger dots may raise waste and cleanup time. Where regulations require, cross-check label directions for maximum placement amounts and intervals. Use inspections to adjust density rather than increasing dot size beyond practical control.
For line work, total the crack and crevice runs where bait is placed as a bead. The calculator converts feet to meters when needed, multiplies by grams per meter, and combines this with the spot estimate to produce a per-visit total. Bead applications suit junctions, pipe chases, and equipment perimeters where dots are impractical. On large projects, split the site into zones and run separate calculations per zone.
Add a wastage allowance to cover applicator variation, nozzle purging, and minor reapplications after cleaning. Finally, divide by cartridge size and round up to avoid shortages. Use the CSV or PDF report to attach assumptions to work orders and audits. Store cartridges at stable temperatures and track batch numbers for traceability and warranty claims. After each visit, compare actual usage against the report to refine future baselines.
Area can be entered in square meters or square feet. Line length can be entered in meters or feet. The tool converts values internally so spot and line calculations stay consistent in grams.
Use monitoring data, sanitation conditions, and harborage complexity. Low risk areas may use fewer spots, while high pressure zones need more. Adjust density first, then keep grams per spot within practical application limits.
Use line mode for cracks, crevices, junctions, and equipment perimeters where dots are hard to place. Measure the treated runs, enter total length, and apply a grams-per-meter rate that matches your method.
Wastage covers nozzle purging, uneven surfaces, minor reapplications, and handling loss. Adding a controlled percentage helps prevent shortages without over-ordering, especially when multiple technicians apply bait across large sites.
The calculator divides total grams, including wastage, by the cartridge size and rounds up. Rounding up ensures you have enough material for the planned visits, even if actual usage varies slightly in the field.
Yes. After calculation, download CSV for spreadsheets or PDF for a simple report. Use these exports to document assumptions, attach to work orders, and compare planned versus actual usage.
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.