Handbook›Unit Weights of Materials

Unit Weights of Materials

IS 875 (Part 1) : 1987 · Table 1 — Unit Weights of Building Materials

Unit weight (density) of common construction materials as per IS 875 Part 1 and standard engineering practice. Essential for dead load calculation in structural design.

IS 875-1 →Try Material Estimator →

95 materials shown

Concrete

Material	Unit Wt	Unit	Notes
PCC (Plain Cement Concrete)	24	kN/m³	Without reinforcement
RCC (Reinforced Cement Concrete)	25	kN/m³	1–2% steel
Prestressed Concrete	25.5	kN/m³
Lean Concrete (1:3:6)	22	kN/m³	Leveling course
Lime Concrete	19	kN/m³
Cement Mortar	20	kN/m³	1:4 to 1:6
Lime Mortar	17	kN/m³
Cement Slurry	17	kN/m³
Foamed / Aerated Concrete	8	kN/m³	Lightweight

Masonry

Material	Unit Wt	Unit	Notes
Brick Masonry (common burnt clay)	19.2	kN/m³	CM 1:6
Brick Masonry (pressed)	20.4	kN/m³
Fly Ash Brick Masonry	18	kN/m³
AAC Block Masonry	8	kN/m³	Autoclaved Aerated
Solid Concrete Block Masonry	22	kN/m³	400×200×200
Hollow Concrete Block Masonry	15	kN/m³
Stone Masonry (granite/gneiss)	26.4	kN/m³	Random rubble
Stone Masonry (sandstone)	23.5	kN/m³
Stone Masonry (laterite)	21.6	kN/m³
Mud Wall (adobe)	18	kN/m³

Metals

Material	Unit Wt	Unit	Notes
Mild Steel / Structural Steel	78.5	kN/m³	7850 kg/m³
Stainless Steel	78	kN/m³
Cast Iron	72	kN/m³
Wrought Iron	76	kN/m³
Aluminium	27	kN/m³	2700 kg/m³
Copper	89	kN/m³
Brass	84	kN/m³
Lead	113	kN/m³
Zinc	71	kN/m³

Timber & Wood

Material	Unit Wt	Unit	Notes
Teak (seasoned)	6.3	kN/m³	Group B
Sal (seasoned)	8.6	kN/m³	Group A
Deodar (seasoned)	5.7	kN/m³	Group C
Pine (seasoned)	5.1	kN/m³
Bamboo	5	kN/m³
Plywood	6	kN/m³	Commercial
Particle Board	6.5	kN/m³

Soils & Earth

Material	Unit Wt	Unit	Notes
Dry Earth (loose)	14	kN/m³
Dry Earth (compacted)	18	kN/m³
Moist Earth	17	kN/m³
Wet Earth	20	kN/m³	Saturated
Clay (dry)	16	kN/m³
Clay (wet/saturated)	20	kN/m³
Sand (dry, loose)	15	kN/m³
Sand (wet)	19	kN/m³
Gravel (loose)	16	kN/m³
Gravel (compacted)	18	kN/m³
Murum	18	kN/m³	Laterite gravel
Submerged Soil	10	kN/m³	Buoyant weight

Stone & Aggregates

Material	Unit Wt	Unit	Notes
Granite	26.5	kN/m³
Basalt (trap rock)	27	kN/m³
Sandstone	23	kN/m³
Limestone	24	kN/m³
Marble	26.5	kN/m³
Laterite	21	kN/m³
Slate	28	kN/m³
Coarse Aggregate (20mm)	15.4	kN/m³	Loose
Fine Aggregate / Sand	15.1	kN/m³	Loose, dry
Brick Aggregate (khoa)	11	kN/m³	Broken brick

Flooring & Finishes

Material	Unit Wt	Unit	Notes
Ceramic Tiles (with mortar bed)	0.45	kN/m²	10mm tile + 20mm bed
Vitrified Tiles (with mortar bed)	0.5	kN/m²
Marble Flooring (25mm + bed)	1.2	kN/m²	25mm marble slab
Kota Stone (25mm + bed)	1.1	kN/m²
Cement Plaster (12mm)	0.24	kN/m²	1:4 CM
Cement Plaster (20mm)	0.4	kN/m²	1:4 CM
Gypsum Plaster (12mm)	0.12	kN/m²
POP Finish (3mm)	0.04	kN/m²
Terrazzo Flooring (25mm)	0.55	kN/m²
IPS Floor (40mm)	0.8	kN/m²	Indian Patent Stone
Waterproofing (bituminous)	0.15	kN/m²
False Ceiling (gypsum board)	0.15	kN/m²	With frame

Roofing & Cladding

Material	Unit Wt	Unit	Notes
GI Sheet Roofing (0.63mm)	0.1	kN/m²	Galvanised iron
GI Sheet Roofing (0.80mm)	0.12	kN/m²
AC Sheet (6mm)	0.16	kN/m²	Asbestos cement
Mangalore Tiles	0.6	kN/m²	With battens
RCC Slab (100mm)	2.5	kN/m²
RCC Slab (150mm)	3.75	kN/m²
RCC Slab (200mm)	5	kN/m²
Aluminium Composite Panel (4mm)	0.06	kN/m²
Glass (6mm)	0.15	kN/m²	Float glass
Glass (12mm)	0.3	kN/m²

Liquids

Material	Unit Wt	Unit	Notes
Water (fresh)	9.81	kN/m³	1000 kg/m³
Sea Water	10.1	kN/m³	1025 kg/m³
Bitumen	10.2	kN/m³
Diesel / Petroleum	8.3	kN/m³	~850 kg/m³

Miscellaneous

Material	Unit Wt	Unit	Notes
Cement (OPC bags, loose)	15	kN/m³	1 bag = 50 kg = 0.035 m³
Cement (packed/compacted)	22	kN/m³
Lime (powder, loose)	8	kN/m³
Lime (powder, packed)	12	kN/m³
Fly Ash	12	kN/m³
GGBS	14	kN/m³	Ground Granulated Blast-furnace Slag
Rubber	9.5	kN/m³
PVC Pipe	14	kN/m³
Glass (sheet)	25	kN/m³	2500 kg/m³
Asphalt (dense)	23	kN/m³	Road wearing course
WBM (compacted)	22	kN/m³	Water Bound Macadam
Cinder / Clinker	7	kN/m³

Concrete Mix Ratios

Generated by InfraLens · infralens.in