| http://www.w3.org/ns/prov#value | - In most soft woods ( like doug fir, p.t. lumber) then pre drilling is unnescesary for screws, even in old lumber, but mandatory for lag bolts over 3/16 IMO. old lumber where you are applying screws near the end *might* need to get pre drilled if the wood blowing out is a major concern.
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