Weights/Densities of common materials

Weight of Standard Drywall panels - Regular Drywall Panels. To convert from PSF to kG/M^2 multiply PSF x 4.89 Panel Size /Weight /Lbs/SqFt /PCF /kG/M^3 4' x 8' x 3/8" = /45 lbs. /1.406 /42 /675 4' x 10' x 3/8" = /56 lbs. /1.406 /42 /675 4' x 12' x 3/8" = /67 lbs. /1.406 /42 /675 4' x 8' x 1/2" = /54 lbs. /1.6875 /42 /675 4' x 10' x 1/2" = /68 lbs. /1.6875 /42 /675 4' x 12' x 1/2" = /82 lbs. /1.6875 /42 /675 4' x 8' x 5/8" = /74 lbs. /2.3125 /42 /675 4' x 10' x 5/8" = /92 lbs. /2.3125 /42 /675 4' x 12' x 5/8" = /110 lbs. /2.3125 /42 /675 4' x 8' x 3/4" = /90 lbs. /2.81 /42 /675 Firecode Core Panels 4' x 8' x 5/8" = /70 lbs. /2.1875 /39.73 /638.5 4' x 10' x 5/8" = /88 lbs. /2.1875 /39.73 /638.5 4' x 12' x 5/8" = /105 lbs. /2.1875 /39.73 /638.5 Medium Density Hardboard – 43-60 PCF typical density, or 690-960 kG/m^3 To convert lb/cu ft into kG/m^3, multiply by 16.04. To convert the other way, divide by 16.04. Concrete weights approx. 3600 lbs/cu yd when cured, about 3900 pounds wet. 133 lbs/cu ft, or 2133 kG/M^3 - MDF - approx. 68 pounds per ½” 4x8 sheet or 2.125 PSF, 53 PCF, 850 kG/M^3 Glass = approx. 3.8 times weight per unit thickness of sheet rock - roughly 161 lbs for 4x8 sheet of 3/8” glass. The surface density of ¼” plywood is 0.74 lb/sq ft, or 23.68 pounds per 4’x8’ sheet. The surface density of 3/8” plywood is 1.11 lb/sq ft, or 35.5 pounds per 4’x8’ sheet. The surface density of ½” plywood is 1.48 lb/sq ft, or 47.36 pounds per 4’x8’ sheet. The surface density of 5/8” plywood is 1.85 lb/sq ft, or 59.18 pounds per 4’x8’ sheet. The surface density of ¾” plywood is 2.22 lb/sq ft, 71.04 pounds per 4’x8’ sheet, 35.5 PCF, 562.5 kG/M^3 A dry 8’ 2x4 weighs about 10 pounds, 2x6 about 15.7 pounds; density about 4.28 PSF for 2x lumber. This puts 2x lumber at roughly the same density as a layer of 5/8 and a layer of ½” drywall. 2x10 about 28 pounds per 8' length, or 3.5 lbs/lin.ft. – 2x10 framing on 24" centers adds approx. 2 lbs PSF dead load. 2x10 on 16" centers adds 2.7 PSF to dead load. 2x8 framing on 24" centers adds approx. 1.6 lbs PSF dead load. 2x8 on 16" centers adds 2.1 PSF to dead load. 2x6 framing on 24" centers adds approx. 1.2 lbs PSF dead load. 2x6 on 16" centers adds 1.6 PSF to dead load. Celotex has an average density of 16.8 PCF, or about 39% as dense as gypsum wallboard. This is linked from the REFERENCE section, here http://www.johnlsayers.com/phpBB2/viewtopic.php?t=2125 Steve When calculating for load purposes, spans, etc, always round UP a bit (use 2.4 PSF for 5/8 drywall, or even 2.5) - that way, you won't UNDER-build and invite problems.

I've been collecting some stuff... Here's the list (so far): Material / Density (kg/m3) min /max Pavement 2200 2400 Concrete: Cellular concrete 400 1300 Concrete: Cement concrete 400 750 Concrete: xx reinforced 2300 Concrete: xx non-reinforced/bulk 2200 Concrete: Foamed concrete 220 650 Cellulair glass 105 165 Pan tile 2300 Gypsum 800 1400 Glass 2500 Glass: Foam glass 120 150 Ground/Soil 2000 Stone: Ashlar 2750 Wood (roof) 950 Wood: Beech 720 Wood: 600 Wood: 1200 Wood: Oak 850 1100 Wood: Pine 700 Wood: Hardboard 1000 Wood: Hardwood 800 Wood: Woodwool 350 700 Wood: Woodwool cement 360 700 Wood: MDF 800 Wood: Softwood 550 Wood: Woodfibre board 450 1000 Wood: Teak 870 Wood: (three/multi-ply) plywood 700 Wood: Pine 580 Wood: Softboard 250 300 Plastic: Acryl 1200 Foam: Expanded Polyurethane (PUR) 30 60 Foam: Expanded Polystryrene 15 30 Foam: xxxxxxxx Polystryrene 30 40 Foam: PVC 25 50 Metal: Aluminium (blend) 2800 Metal: Aluminium (pure) 2700 Metal: Bronse 8700 Metal: Constructionmetal 7800 Metal: Cast iron 7500 Metal: Gold 19200 Metal: Iron 7800 Metal: Copper 8900 Metal: Lead 12250 Metal: Magnesium 1700 Metal: Brass 8400 Metal: Platinum 21500 Metal: Steel 7930 Metal: Hammered steel 7800 Metal: Steel 8000 Metal: Tin 7300 Metal: Zinc 7200 Mineral Wool (blanket) 15 21 Mineral Wool (board) 16 250 Rendering: cement 1900 Rendering: Masonry mortar 1100 1500 Rendering: Gypsum 1100 1300 Rendering: 200 Rendering: Mortar 1600 Stone: Masonry 1350 Stone: Masonry 1000 Stone: Masonry 1300 1700 Stone: Masonry 1300 1700 Stone: Masonry 1700 1900 Stone: Masonry 2100 Stone: Brick 2300 Stone: Granite 2650 3000 Stone: Limestone hard 2500 2750 Stone: Limestone soft 2200 2350 Stone: Lime-sandstone 2000 2350 Stone: Marble 2750 Stone: Tarass 1100 1500 Stone: Sandstone 2000 2650 Stone: Tile (hard) 2000 Stone: Flagstone 1700 Sand 1600 BTW, for imperial measure - to get PCF (pounds per cubic foot) from Kg/m^3, divide by 16. To convert metric to english, DIVIDE by 16 - Steve

Any idea how OSB fits into this? ...or did I miss it?

Oriented Strand Board (OSB) is (can be!) about 700 kg/m3