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Posted to uk.d-i-y
legin
 
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Default Floor joist calculations

6 * 2 = 1.20/m or 5.40/ 4.5m length. 8*2=1.60/m or 7.20/ 4.5 m length
an additional 1.80 per length * 19 length's = 34.20. Are you that
pushed that to do the job right you won't spend the extra 34.20?? Any
thoughts on how you would get them up there??