Most common materials:
Material | Description |
Weight in kN/m2 U.N.O.
|
Blockwork
Brickwork Concrete Glass Steel Timber |
Lightweight
London stock Normal reinforcement Clear float Mild Softwood |
10 kN/m3
19 kN/m3 24 kN/m3 25 kN/m3 78 kN/m3 6 kN/m3 |
Full list of materials:
Material | Description |
Thickness/
quantity of unit |
Weight in kN/m2 U.N.O.
|
A
Aggregate
Aluminium Asphalt | Cast alloy Longstrip roofing Bronze Roofing - 2 layers Paving | 0.8 mm 25 mm |
16 kN/m3
27 kN/m3 0.022 76 kN/m3 0.58 21 kN/m3 |
B
Bituminous felt roofing
Bitumen Blockboard Blockwork Books Brass Brickwork Bronze |
3 layers and vapour barrier
Sheet Aerated concrete Dense aggregate Lightweight On shelves Bulk Cast Blue Engineering Fletton London stock Sand lime Cast | 18 mm |
0.11
11-13 kN/m3 0.11 5-9 kN/m3 20 kN/m3 7-14 kN/m3 7 kN/m3 8-11 kN/m3 85 kN/m3 24 kN/m3 22 kN/m3 18 kN/m3 19 kN/m3 21 kN/m3 83 kN/m3 |
C
Cast stone
Cement Chalk Chippboard Chippings Clay Concrete Coal Copper Cork | Sheet Sheet Flat roof finish Undisturbed Aerated Lightweight aggregate Normal reinforced Loose lump Cast Longstrip roofing Granulated | 18mm 22mm 1 layer 0.6 mm |
23 kN/m3
15 kN/m3 22 kN/m3 7 kN/m3 0.12 0.15 0.05 19 kN/m3 10 kN/m3 18 kN/m3 24 kN/m3 9 kN/m3 87 kN/m3 0.05 1 kN/m3 |
F
False ceiling
Felt |
Steel framing
Roofing underlay Insulating 3 layer plus chippings | 50 mm |
0.1
0.015 0.05 0.35 |
G
Glass
Glass wool Gold Granite Gravel |
Crushed/refuse
Clear float Single glazing Double glazing Quilt Loose Undisturbed | 100 mm |
16 kN/m3
25 kN/m3 0.3 0.52 0.01 194 kN/m3 27.3 kN/m3 16 kN/m3 21 kN/m3 |
H
Hardboard
Hardcore Hardwood Hollow clay pot slabs | Greenheart Oak Iroko, teak Mahogany Including ribs & mortar (but not topping) | 300 mm thick overall 100 mm thick overall |
6-8 kN/m3
19 kN/m3 10 kN/m3 8 kN/m3 7 kN/m3 6 kN/m3 12 kN/m3 15 kN/m3 |
I
Insulation
Iron Ivory |
Glass fibre
Glass fibre Polystyrene Rockwool Cast Wrought |
100 mm
150 mm 25 mm |
0.02
0.03 0.04 0.01 72 kN/m3 77 kN/m3 19 kN/m3 |
L
Lead
Lime Linoleum |
Cast
Sheet Sheet Hydrate (bags) Lump/quick (powder) Mortar (putty) Sheet | 1.8 mm 3.2 mm 3.2 mm |
114 kN/m3
0.21 0.36 6 kN/m3 10 kN/m3 18 kN/m3 0.05 |
M
Macadam
Magnesium Metal roof cladding MDF Mercury Mortar Mud |
Paving
Alloys Sheet |
21 kN/m3
18 kN/m3 0.07 8 kN/m3 136 kN/m3 17-18 kN/m3 17-20 kN/m3 |
P
Partitions
Patent glazing Pavement stones Peat Plaster Plastic Plywood Polystyrene Precast concrete |
Plastered brick
Medium dense plastered block Plaster board on timber stud Single glazed Double glazed Cast iron or concrete framed Plasterboard Plasterboard Wallboard and skim coat Lath and plaster Traditional lime plaster Traditional lath + plaster ceiling Plasterboard on timber stud Plastered brick 102 + 2 x 13mm Plastered medium density block Corrugated Sheet Sheet Expanded sheet Beam and block + 50 mm topping Hollowcore plank Hollowcore plank Hollowcore plank Solid plank plus 50 mm topping |
102 + 2 x 13 mm
100 + 2 x 13 mm 100 + 2 x 13 mm 100 mm 12.5 mm 19 mm 13 mm 19 mm 12.5 mm 19 mm 150-225 mm 150 mm 200 mm 250-450 mm 75-300 mm |
2.6
2.0 0.35 0.26-0.3 0.52 1.5 11 kN/m3 0.09 0.15 0.12 0.25 20 kN/m3 0.5 0.35 2.6 2.0 0.04 7 kN/m3 0.08 0.12 0.2 kN/m3 1.8-3.3 2.4 2.8 3.7-5.5 3.7-7.4 |
Q
Quarry tiles
|
Including mortar & bedding
|
12.5 mm
|
0.32
|
R
Raised floors
Ribbed slab Roofing tiles |
Heavy duty
Medium weight Lightweight Clay - plain Clay pantile Concrete Slate | 250-500 mm |
0.5
0.4 0.3 4.0-5.7 0.77 0.42 0.51 0.3 |
S
Sand
Screed Slate Snow Softwood Soils Stainless steel roofing Steel Stone Granite Limestone Marble Sandstone Slate Suspended ceiling |
Dry, loose
Wet, compact Sand/cement Slab Fresh Wet, compacted T&G (Tongue and Groove) T&G (Tongue and Groove) Battens for slating & tiling 25 mm T&G boards on 100x50 timber joists @ 400 crs 25 mm T&G boards on 250x50 timber joists @ 400 crs Loose sand & gravels Dense sand & gravels Soft/firm clays & silts Stiff clays and silts Longstrip Mild Cornish (Cornwall) Rublislaw (Grampian) Bath (Wiltshire) Mansfield (Nottinghamshire) Portland (Dorset) Italian Bramley Fell (West Yorkshire) Forest of Dean (Gloucestershire) Dalrey Dale or Kerridge (Derbyshire) Welsh Aluminium Steel | 50 mm 75 mm 15.5 mm 22 mm 0.4 mm |
16 kN/m3
19 kN/m3 22 kN/m3 1.15 1.8 28 kN/m3 1 kN/m3 3 kN/m3 6 kN/m3 0.09 0.12 0.03 0.23 0.33 16 kN/m3 22 kN/m3 18 kN/m3 21 kN/m3 0.05 78 kN/m3 26 kN/m3 25 kN/m3 21 kN/m3 22 kN/m3 22 kN/m3 27 kN/m3 22 kN/m3 24 kN/m3 23-25 kN/m3 28 kN/m3 0.05 0.1 |
T
Timber
Terracotta Terrazzo Thatch |
C16
C24 Paving Including battens | 20 mm 305 mm |
3.6 kN/m3
4.1 kN/m3 18 kN/m3 0.42 0.45 |
W
Waffle slab
Water Woodwool slabs |
Standard moulds
Fresh |
325-525 mm
|
6.0-8.6
10 kN/m3 6 kN/m3 |
Z
Zinc
|
Cast
Longstrip roofing | 0.8 mm |
72 kN/m3
0.06 |
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