Anti-termite treatment calculator for new buildings
This anti-termite treatment calculator works out how much termiticide emulsion a pre-construction soil treatment needs, and how much concentrate and water to mix for it. It follows the stages and application rates of IS 6313 (Part 2):2001, the Indian code of practice for pre-constructional chemical anti-termite measures: foundation trenches, backfill, the top of the plinth filling, the junction of walls and floor, the external perimeter, the soil under the apron, expansion joints and any termite mounds.
Enter the building’s size and foundation details and the dilution printed on the product label. The calculator lists each stage with its clause, area and litres, then totals the emulsion, the concentrate to buy, packs and cost.
It deliberately names no chemicals. Permitted termiticides and their working strengths change over time and between countries, so the label of a currently registered product decides the dilution and the safety precautions.
How to use the Anti-Termite Treatment Calculator
- Choose metres or feet and the foundation type: masonry strip footings or RCC column footings.
- Enter the outer length and width of the building, the plinth filling area inside the walls and the height of the filling above ground.
- For masonry, enter the trench length, width and the backfill height; for RCC, the number and size of columns and any beams or walls below ground.
- Enter the wall and column faces along the floor, rodding depth, apron width, expansion joints and mound volume if any.
- Enter the label dilution as 1 : N parts water or as concentrate and working percentages, and optionally the price and pack size.
Anti-Termite Treatment Calculator features
Every IS 6313 stage
Trenches, backfill, RCC faces, plinth top, wall junction, perimeter, apron, joints and mounds, with clause numbers.
Masonry or RCC
RCC treatment starts 500 mm below ground, as clause 7.3.1 allows, instead of the trench bottom.
Label dilution
Use a mixing ratio or concentrate and working strengths; concentrate = emulsion × working % ÷ concentrate %.
Editable rates
All application rates sit in one panel, ready for a project specification that differs.
Packs and cost
Concentrate rounded up to whole packs and priced.
Application rates in IS 6313 (Part 2):2001
Read on 19 October 2026 from the 2001 (second revision) text. The 2001 edition used its chemicals as 1% emulsions; several chemicals named in older editions have since been banned or restricted, so check for later revisions and use the current label.
| Clause | Where | Rate of emulsion |
|---|---|---|
| 7.2.1 | Bottom and sides (to about 300 mm) of trenches for masonry foundations and basements | 5 L/m² |
| 7.2.2 | Backfill in contact with the foundation, each side | 7.5 L/m² of vertical surface |
| 7.3.1 | RCC foundations: soil against vertical faces, from 500 mm below ground | 7.5 L/m² |
| 7.4 | Top surface of plinth filling | 5 L/m² |
| 7.5 | Junction of wall and floor (30 × 30 mm channel, rodded) | 7.5 L/m² of vertical surface |
| 7.6 | External perimeter, rodded 300 mm deep | 7.5 L/m² of vertical surface |
| 7.7 | Soil under apron | 5 L/m² |
| 7.10 | Expansion joints | 2 L per metre |
| 5.2 | Termite mounds | about 4 L per m³ |
How the quantities are worked out
Each stage’s area or length is multiplied by its rate, and the stages are added: emulsion = Σ area × rate. With a label ratio of 1 part concentrate to N parts water, concentrate = emulsion ÷ (1 + N). With strengths, concentrate = emulsion × working % ÷ concentrate % — a 20% concentrate diluted to 1% is 1 part in 20, i.e. 1 + 19.
Worked example (masonry, 12 × 9 m house): 70 m of 0.9 m trench gives 70 × 1.5 = 105 m² × 5 = 525 L; backfill 70 × 2 × 1.2 = 168 m² × 7.5 = 1,260 L; plinth top 95 m² × 5 = 475 L; junction 100 m × 0.45 m × 7.5 = 337.5 L; perimeter 42 m × 0.3 m × 7.5 = 94.5 L; apron 42 × 0.6 × 5 = 126 L. Total 2,818 L of emulsion, which at 1 : 19 is about 141 L of concentrate and 2,677 L of water.
Practical points
- Treat the trench just before the foundation concrete goes in, and the plinth filling just before the floor sub-grade, so the barrier is not disturbed.
- Do not treat in rain or on wet soil; pump out water-logged trenches first.
- Contractors usually quote per square foot of plinth area — compare with the chemical cost here. The plinth area calculator gives that area, and the excavation calculator the trench sizes.
- For other mixing problems, the dilution calculator handles C1V1 = C2V2.
Anti-Termite Treatment Calculator FAQ
How much anti-termite chemical is needed per sq ft?
At IS 6313 rates the plinth top alone takes 5 L of emulsion per m², about 0.46 L per sq ft; with trenches, junctions and perimeter the whole job is roughly 10–30 L of emulsion per m² of footprint, depending on the foundations. Divide by (1 + N) for concentrate.
What is the mixing ratio for anti-termite chemical?
Whatever the product label says. The 2001 code used 1% emulsions of 20% concentrates — 1 part in 20. Newer chemicals are often used at much lower strengths, such as 1 part in 50 or more.
When should anti-termite treatment be done?
Pre-construction treatment is done in stages: in the foundation trenches before concreting, on the backfill as it is placed, on the plinth filling before the floor, and around the perimeter after the building is complete.
Is anti-termite treatment needed for RCC buildings?
Dense RCC resists termites, so IS 6313 does not treat RCC trench bottoms; but the soil against foundations from 500 mm below ground, the plinth filling and the wall junctions still need treatment.
Is it safe to do it myself?
Termiticides are poisonous. Use a registered product, follow its label for protective equipment and disposal, keep it away from wells, and preferably hire a licensed pest-control operator.
Which standard does the calculator follow?
IS 6313 (Part 2):2001, Code of practice for anti-termite measures in buildings — pre-constructional chemical treatment measures. Part 1 covers constructional measures and Part 3 treatment of existing buildings.