probably a stupiud question but easy for someone experienced, on my plans it asks for 2/120 x 45 F5 treated seasoned softwood floor bearer (max single span 1700mm, continous span 1700mm) does this mean 2 bearers at 120 x 45 joined together and if so how are they joined (eg nails, bolts and what size or type) also what is the 1700mm span - obviously i am an amateur but would like to better understand my plans


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