INDUSTRY REFERENCE MATERIAL

Conversion Charts and Span tables

The following are a list of general timber conversions which are used throughout the timber industry.

Lineal Metres to Cubic Metres
 Lineal metres x normal width x normal depth = Cubic Metres
●  Eg: 300 lineal x 0.100 x 0.038 = 1.14m3
 
$ Per Lineal Metres to $ Per Cubic Metres
●  $Lineal metres / nominal width / nominal depth = Cubic Metres
●  Eg: $0.79 0/075 / 0.025 = $421.36 m3
 
Cubic Metres to Lineal Metres
●  $m3 / nominal width / nominal depth = $ Lineal Metres
●  Eg: 0.694 m3 / 0.075 / 0.025 = 370
 
$ Cubic Metres to $ Lineal Metres
●   $m3 x nominal width x nominal depth = $ Lineal Metres
● 75 x 25 = $420 m3 converts to $420 m3 x 0.075 x 1.025 = $0.79
 
Square Metres to Lineal Metres
●  Sq Metres / cover width x waste factor = Lineal Metres
●  140sq metres cover width / 0.080 / 2.5% = 1794 Linel Metres
 
$ per Square Metre to $ per Lineal Metre
●   =  1 / cover width =? $ Square Metres / ? = S Lineal Metre
●  Eg: 80 x 19 Flooring at $31.25 m2 converts to = 1 / 0.8 = 12.5
●  $31.25 m2 / 12.5 = 2.50 Per Lineal Metre
 
Lineal Metre to Square Metre
●    =  Lineal Metre x cover width = Square Metres
●   Eg: 878 lineal x 0.80 = 70.24 square metres ( the 0.0870 is the cover size for 100 x 25 flooring)
 
$ per a Lineal Metre to $ per a Square Metre
●  1 / cover width = ? X $ per a lineal metre = Square Metre
●   Eg: 80 x 19 Flooring at $2.50 lineal converts to 1 / 0.080 = 12.5 x $2.50 = $31.25
 
$ per Cubic Metre to $ per and Each
● = Length x nominal width x nominal depth = m3 x $m3 = $ Unit Price
● Eg: 1 Piece 2.4 x 125 x 50 at $420.00m3 Converts to 
● 2.4 x 0.125 x 0.015 x $420.00 = $6.30 Each
 
$ Each Price to Cubic Metre
●  = Each Price / nominal width / noiminal depth / length = $ per a m3
●  Each price / nomianl width / nominal length / = $ m3
●  Eg: $6.30 / 0.125 / 0.05 / 2.4 m = $420.00 m3

 

PERGOLA BEAMS SPAND
Wind Classification 1 & N2  
Roof Load Width (RLW)
 
  1800mm   2400mm   3000mm
Size   F5 F7 MP10   F5 F7 MP10   F5 F7 MP10
120 x 45mm   1700 2000 2200   1600* 1700 1700   NS 1700 1700*
140 x 45mm   2200 2600 2700   1900 2200 2200   1700* 1900 2000
190 x 45mm   3100 3500 3500   2700 3000 3000   2400 2800 2700
240 x 45mm   3900 4500 4300   3400 3800 3700   3000 3400 3300
 
 
Continuous Span
 
120 x 45mm   1900 2200 2300   1700 1900 1900   1500* 1700 1700
 
140 x 35mm   2300 2600 2700   1900 2200 2300   1800 1900 2000
 
190 x 45mm   3200 3500 3500   2800 3100 3100   2500 2800 2800
 
240 x 45mm   4500 4100 4400   3400 3900 3800   3100 3400 3300
 
Note: * denotes 600mm rafter spacing only. Member span is not suitable for rafter spacing greater than 600mm.

 

TREATED PINE SPAN TABLES

PERGOLA RAFTER SPANS FOR 600MM AND 900MM SPACING
Wind Classification n1 & N2
 
Single Span
 
Continuous Span
 
Rafter Spacing
 
Rafter Spacing
 
Rafter Spacing
 
Rafter Spacing
 
600mm
 
900mm
 
600mm
 
900mm
Size   F5 F7 MP10   F5 F7 MP10   F5 F7 MP10   F5 F7 MP10
90 x 43mm   1800 1900 2200   1500 1800 1700   2200 2400 2800   2000 2200 2200
 
90 x 45mm   2100 2200 2700   1900 2100 2300   2700 2900 3300   2300 2500 2700
 
120 x 35mm   3000 3300 3800   2800 3000 3000   3500 4000 3800   2800 3100 3000
 
120 x 45mm   3600 3900 4300   3200 3400 3700   4100 4500 4700   3200 3600 3700
   
140 x 35mm   4000 4300 4500   3300 3700 3500   4200 4700 4500   3300 3700 3500
140 x 45mm   4500 4700 5100   3800 4100 4400   4800 5300 5500   3800 4200 4400
190 x 35mm   5600 5800 5900   4600 5100 4700   5700 6400 5900   4600 5100 4700
   
190 x 45mm   6000 6200 6800   5200 5600 5800   6500 7200 7200   5200 5900 5800
   
240 x 35mm   7000 7200 7200   5800 6400 5800   7200 7200 7200   5800 6500 5800
190 x 45mm   7200 7200 7200   6700 7000 7200   7200 7200 7200   6700 7200 7200
   
Note: Where rafters are equal to or exceed four times their breath, blocking should be used to reduce distortion

Timber Importers, Exporters & Wholesalers