Construction Wastage Calculator

Indian Standards Reference (IS Codes & NBCC Guidelines)

Cement

2.0% - 3.5%

IS 456:2000

Handling, moisture & spillage losses

Sand

8% - 12%

IS 2386:1963

Sieving & transport losses

CoarseAggregate

5% - 8%

IS 383:2016

Dropping & handling losses

Concrete

2% - 5%

IS 456:2000

Spillage & excess batching

ReinforcementSteel

3.5% - 5%

IS 1786:2008

Cutting, bending & off-cuts

StructuralSteel

10% - 15%

IS 800:2007

Fabrication & trimming losses

Bricks

2.5% - 3%

IS 3495:1992

Breakage during transport

Tiles

5% - 10%

IS 1237:2012

Cutting & breakage at corners

Timber

5% - 8%

IS 1149:2013

Cutting, shaping & defects

Plywood

5% - 10%

IS 4990:2011

Damage from reuse & wear

Granite

8% - 15%

IS 1130:1969

Cutting, shaping & transport losses

Marble

8% - 15%

IS 1237:2012

Cutting, chipping & breakage

Mortar

1% - 2%

IS 2250:1981

Mixing & application losses

Paint

2% - 3%

IS 101:2020

Overspray & application losses

Standards Used

IS 1200 (Method of Measurement) | IS 456:2000 | IS 1786:2008 | NBCC 2016

Wastage percentages are industry-accepted norms. Always document assumptions in BOQs and estimates.