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I start to build a kitchen cabinet, simple, rustic and economic, first i want to build a solid structure with tables of 2 inches wide and 1 inch thick, the problem atack me when i have to decide what number and size of screw i must use to joint the tables…
there are a table of proportion to use wood and screws…?
i mean, to joint tables of 3/4″ thick use screws of number #x and size x”
1″ #x x”
1 1/2″ #x x”
i attach a sketch to explain me better
i apreciate any help…
Replies
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Joaquin,
My rule of thumb is to make sure that the entire threaded part of the screw penetrates the base piece of stock whenever possible. For end grain I go slightly longer. The guage of the screw depends on the loads that are involved.
Dano
*thanks for the advice Dano...I been thinking and i have a conclution, 2/3 of the thik of the wood will be reasonable.see the attachment table and teel me what do you think about it...see you
*Joaquin,Nice attachment. I am a little confused about your word "table". If these are face frame cabinets and the drawings shown appear that they are, might I suggest mortise and tenon joinery? #8 or #10 screws in answer to the ?s.Dano
*Withdrawal resistance of screws is calculated by the following formula:P = 15700 (G x G) D Lwhere -- P is the force (load) required to pull out the screwG is the specific gravity of the woodD is the diameter of the screwL is the length of penetrationThis is based on tests run at the Forest Products Lab and appears in the Wood Handbook. It requires that holes are prebored prior to insertion of the screw.
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