Materials
Wall Putty Calculator Nepal
Estimate wall putty bags and material cost from wall area, coats, brand coverage, and waste.
Net wall area
90.00 m²
Putty needed
226.8 kg
Bags
6
Material cost
5,400 NPR
How this works
net area = wall − openings
kg = net × coats × kg/m²/coat × (1+waste%)
bags = ceil(kg / bag size)Worked example
100 m² walls with 10 m² openings, 2 coats at 1.2 kg/m² and 5% waste → ~227 kg, 6 bags of 40 kg.
Sources
- Use the manufacturer’s kg/m² per coat for your putty brand; rates vary by thickness and surface.
FAQ
How much wall putty do I need per m²?
Check the brand bag for kg per m² per coat. Many white putties land near 1–1.5 kg/m² per coat on plastered walls; rough surfaces need more.
Should I deduct doors and windows?
Yes. Enter openings area so you do not over-order for glass and door leaves.
How many coats of putty are normal in Nepal?
Two coats are common on new plaster before primer and paint. Follow the paint system your painter specifies.
Does this include primer and paint?
No — only putty bags. Use the paint and painting calculators for top coats.
What waste should I allow?
About 5% for simple rooms; more for heavy sanding loss or very uneven plaster.