🖌 Plastering Calculator PRO
Area, volume, cement/sand mix, coats & cost — all in one.
Dimension Diagram — updates as you type
Wall elevation. Gross area minus window and door deductions gives the net plaster area.
1 Wall Dimensions
2 Window & Door Deductions
3 Plaster Configuration
4 Cost & Details
Results
Area
Plaster Volume
Materials
⚠️ Pre-Export Checklist
- Wall dimensions measured; openings deducted
- Plaster thickness matches specification per coat
- Mix ratio matches plaster type (cement/gypsum/lime)
- Surface preparation (hacking/bonding) planned
- Curing water arrangement for cement plaster
- Scaffolding or access for high walls arranged
Professional Plastering Estimation Guide
Show formulas, worked examples & pro tips ▼
Formulas
Gross Area= Wall Length × Wall Height × Number of Walls
Net Area= Gross Area - (Windows × Window Area) - (Doors × Door Area)
Plaster Volume = Net Area × Thickness × Number of Coats
Cement Bags= Volume × (1 / Total Ratio Parts) × Cement Factor
Sand Volume= Volume × (Sand Parts / Total Ratio Parts) × Sand Factor
Worked Example
4 walls 12 ft × 10 ft, 10mm thick, 2 coats, 1:5 mix, 2 windows + 1 door:
- Gross Area: 4 × 12 × 10 = 480 sq ft
- Deductions: (2 × 15) + (1 × 21) = 51 sq ft
- Net Area: 480 - 51 = 429 sq ft
- Volume (10mm, 2 coats): 429 × 0.0328 × 2 = 28.1 cu ft
- Cement: ~20 bags (50 kg) for 1:5 mix
- Sand: ~1.0 cu yd
Mix Ratio Guide
- 1:4 — External plaster, high-strength areas, damp-prone walls
- 1:5 — Internal walls, general-purpose plastering
- 1:6 — Internal smooth finish, backing coat, economy applications
Pro Tips
- Dampen walls 24 hours before plastering for better adhesion
- Apply scratch coat first for thick plaster jobs (>12mm)
- Use chicken mesh at joints between different materials
- Temperature should be 5-35°C during application and curing
- Keep plastered surfaces damp for 7 days after application
Plastering — 3D Preview
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Sambandhit Nirman Calculator
Frequently used together on the same project.
Client & Quote (prints on PDF & Excel)
Adjustments (applies to exports)
Contingency is added as a separate line on the exported cost summary. Waste % is printed as an advisory reminder.
Project notes (prints on PDF & Excel)
Result compare (A/B)
| Item | Pinned | Current | Change |
|---|---|---|---|
Saved rates auto-apply from your Price Library. Advanced details stay in your browser — nothing is uploaded except inside your own PDF/Excel exports.
Plastering chikni ya banaavatdaar coatings ko deewar aur chhat satahon par lagane ki prakriya hai taaki sam, tikaavu aur dikhai dene wala finish bane. Har nirman pariyojana ke liye sahi plaster samagri ganana avashyak hai. Hamara plaster calculator thakedaron, plasterers aur nirmataon ko cement, ret, paani aur yaugakon ki sahi matra ka anuman lagane mein madad karta hai.
Plaster ganana prakriya mein kul satah kshetra ka nirdharan, application ke anusaar plaster motai chunna, aur avashyak plaster mishran ka volume ganana shamil hai. Deewar plastering aam taur par 12 se 20 mm motai ki hoti hai, jabki chhat plaster patli hoti hai 8 se 12 mm.
Cement aur ret ka mishran anupat plaster ke prakar par nirbhar karta hai. Aantarik deewar plaster mein aam taur par 1:4 ya 1:5 cement-ret anupat hota hai, jabki bahari plaster mein 1:3 se 1:4 ka mishran hota hai. Hamara calculator waste factors, satah badhaav, konon aur khidki reveals ko bhi dhyan mein rakhta hai.
📖 Plaster Samagri Matra Ki Ganana Kaise Karen
Deewar aur Chhat Kshetra Mapen
Sabhi deewaron aur chhaton ki kul satah kshetra ganana karein. Pratyek deewar ki lambai x unchai mapen.
Plaster Motai Tay Karen
Application ke anusaar plaster motai chunein. Aantarik deewar 12-15 mm, bahari deewar 15-20 mm, chhat 8-12 mm.
Plaster Volume Ganana
Kul satah kshetra ko plaster motai se guna karein. 10-15 pratishat waste aur badhaav ke liye jodein.
Mishran Anupat Tay Karen
Plaster ke prakar ke anusaar cement-ret anupat chunein.
Cement aur Ret Matra Ganana
Plaster volume aur mishran anupat ke aadhar par alag-alag matra ganana karein.
Paani Avashyakta Jodein
Cement ke wajan ke anusaar paani matra ganana karein, lagbhag 0.5-0.6 liter pr kg.
📐 Plaster Ganana Sutre
Mool plaster volume sutra: Plaster Volume = Satah Kshetra x Motai x (1 + Waste Factor). 60 varg meter deewar kshetra, 15 mm motai, 12 pratishat waste ke saath: 60 x 0.015 x 1.12 = 1.008 ghan meter.
1:4 mishran mein cement matra: Cement Volume = Plaster Volume / (Kul Anupat Bhag x Cement Bhag). 5 kul bhagon mein, cement = 1.008 / 5 x 1 = 0.2016 ghan meter = lagbhag 290 kg = 6 bag.
Ret matra: Ret Volume = 1.008 / 5 x 4 = 0.8064 ghan meter = lagbhag 1290 kg.
⚠️ Samanya Plaster Ganana Trutiyan
Khidki aur darwaze ka kshetra ghatana bhool jana
✓ Hamesha kul deewar kshetra se khidki, darwaje aur anya chhedan ghatayen.
Galat motai ka upyog
✓ Bahari plaster ko moti motai aur ameer cement mishran ki avashyakta hoti hai.
Konon aur reveals ko andekha karna
✓ Khidki reveals, darwaje reveals aur bahari kon plaster ki atirikt matra lete hain.
Plaster shrinkage ka vichar na karna
✓ Plaster sukhe hone par 1 se 2 pratishat shrink hota hai.
Dry volume ke aadhar par order karna
✓ Hamesha compacted wet volume ke aadhar par ganana karein, loose dry volume nahi.
💡 Professional Plastering Tips
Chikni satahon par lagane se pehle bonding agent ya PVA solution lagayein.
Screed guides ya battens ka upyog karke sam plaster motai banayein rakhein.
Saaf paani mein shudh taapman par plaster mix karein, 5 se 30 degree Celsius.
Har coat ke beech anushansit antral chhodein taaki sukhne ka samay mile.
Taje plaster satahon ko seedhi dhoop, hawa aur frost se 48 ghante tak bachayen.
Poore pariyojana mein ek jaisi ret grading aur rang ka upyog karein.
❓ Plastering ke Baare Mein Aksar Pooche Jane Wale Prashn
100 varg meter aantarik deewar plastering ke liye 15 mm motai, 1:4 anupat par: lagbhag 650 kg cement (13 bag), 1.35 ghan meter ret, aur 300 liter paani.
Undercoat pehli parat hai 10-12 mm motai, 1:5 anupat. Floating coat doosri parat hai 8-10 mm, 1:4. Finishing coat antim parat hai 2-3 mm, 1:3.
Undercoat ko kam se kam 7 din sukhne dein. Floating coat ko 5-7 din.
Concrete blocks aam taur par plaster ke liye accha key dete hain, lekin chikne blocks ko bonding agent chahiye.
Aksar jaldi jaldi coats lagane, adhik motai, tez hawa ya dhoop, galat mishran anupat ya inadequte curing ke karan.
Kai binduon par mapen aur ausat aayamon ka upyog karein. 15-20 pratishat contingency jodein.
🏗️ Vastavik Duniya Plastering Udaharan
Vyavaharik plastering ganana dikhata hai ki sutre vastavik pariyojanaon mein kaise lagu hote hain.
Senario 1: Aavasik Kamra Plastering. 5 by 4 meter kamra, 2.7 meter chhat. Kul deewar kshetra 48.6 varg meter. Chhedan ghatane ke baad net 44.91 varg meter. Chhat 20 varg meter. Kul 64.91 varg meter. 15 mm motai, 10 pratishat waste ke saath: 1.07 ghan meter plaster. 1:4 anupat par: cement 308 kg, ret 0.856 ghan meter.
Senario 2: Bahari Bhavan Plastering. 30 x 10 meter facade. Net kshetra 271.5 varg meter. 20 mm motai, 1:3 anupat par: 6.08 ghan meter. Cement 2189 kg, ret 4.56 ghan meter.
Hamara plaster calculator aantarik deewar plastering, bahari rendering, chhat plaster aur decorative plaster finish ke liye cement, ret, paani aur yaugakon ki sahi matra anuman pradan karta hai.
✅Method, Sources & Review
Maintained by theBuildingCalc methods desk· Last reviewedSeptember 23, 2026. This calculator implements the standards and references below; every figure can be rechecked against the formulas and worked example on this page.
Results are estimates, not engineering advice. Verify against local codes and licensed professionals for structural, electrical, and gas work. See ourTerms. Spotted an error? Report it— corrections ship with the next review.