HandbookDead Loads of Building Components

Dead Loads of Building Components

IS 875 (Part 1) : 1987 · Table 1 — Unit Weights & Table 2 — Weights of Building Components
Dead loads (permanent loads) for common building components as per IS 875 Part 1. Use these directly in structural analysis — values include self-weight of materials and typical construction thickness.
IS 875-1
42 items shown
RCC Slabs
ComponentLoadUnitCalculation
RCC Slab — 100mm thick2.5kN/m²0.10 × 25
RCC Slab — 115mm thick2.88kN/m²0.115 × 25
RCC Slab — 125mm thick3.13kN/m²0.125 × 25
RCC Slab — 150mm thick3.75kN/m²0.15 × 25
RCC Slab — 175mm thick4.38kN/m²0.175 × 25
RCC Slab — 200mm thick5kN/m²0.20 × 25
RCC Slab — 250mm thick6.25kN/m²0.25 × 25
Walls (per m² of wall area)
ComponentLoadUnitCalculation
230mm Brick Wall (CM 1:6)4.4kN/m²0.23 × 19.2
115mm Brick Wall (half brick)2.2kN/m²0.115 × 19.2
200mm AAC Block Wall1.6kN/m²0.20 × 8.0
150mm AAC Block Wall1.2kN/m²0.15 × 8.0
200mm Solid Concrete Block Wall4.4kN/m²0.20 × 22
150mm Hollow Concrete Block Wall2.25kN/m²0.15 × 15
100mm Fly Ash Brick Wall1.8kN/m²0.10 × 18
Wall Load per Running Metre (on beam)
ComponentLoadUnitCalculation
230mm Brick Wall, 3.0m height13.2kN/m4.4 × 3.0
230mm Brick Wall, 3.3m height14.5kN/m4.4 × 3.3
115mm Brick Wall, 3.0m height6.6kN/m2.2 × 3.0
200mm AAC Block Wall, 3.0m height4.8kN/m1.6 × 3.0
230mm Brick + 12mm plaster both sides15.6kN/m(4.4 + 0.48) × 3.0
Parapet Wall 230mm, 1.0m height4.4kN/m4.4 × 1.0
Floor Finishes
ComponentLoadUnitCalculation
Cement Plaster 12mm (ceiling)0.24kN/m²0.012 × 20
Cement Plaster 20mm0.4kN/m²0.020 × 20
Floor Finish (tiles + mortar bed 50mm)1kN/m²Typical allowance
Floor Finish (tiles + screed 75mm)1.5kN/m²Typical allowance
Terrazzo Flooring 25mm0.55kN/m²
IPS Floor 40mm0.8kN/m²
Marble Flooring 25mm + bed1.2kN/m²
Waterproofing (bituminous)0.15kN/m²
False Ceiling (gypsum board + frame)0.15kN/m²
POP Finish 3mm0.04kN/m²
Roofing
ComponentLoadUnitCalculation
GI Sheet Roofing 0.63mm (with purlins)0.15kN/m²Sheet + purlins
GI Sheet Roofing 0.80mm (with purlins)0.2kN/m²
AC Sheet 6mm (with purlins)0.25kN/m²
Mangalore Tiles (with battens)0.65kN/m²
Mud Phuska 150mm + tiles3kN/m²Traditional flat roof
Brick Coba 75mm1.5kN/m²
Terrace — WP + screed + tiles2kN/m²Typical combo
Typical Total Slab Loads (residential)
ComponentLoadUnitCalculation
Interior Floor: 125mm slab + finish + ceiling4.5kN/m²3.13 + 1.0 + 0.24 + 0.15
Interior Floor: 150mm slab + finish + ceiling5.15kN/m²3.75 + 1.0 + 0.24 + 0.15
Terrace: 150mm slab + WP + finish5.9kN/m²3.75 + 2.0 + 0.15
Balcony: 125mm slab + finish4.15kN/m²3.13 + 1.0
Staircase Waist Slab 150mm + steps6.5kN/m²Approx with 150mm riser
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