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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

			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

INDUSTRY REFERENCE MATERIAL

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