View Full Version : How Long Should Screws Be?

12-05-2004, 10:51 PM
i made a sealed box, and had some problems with the mdf board cracking. the box still is fine and sturdy, but i plan on making another ported enclosure for three tens in the near future. i think i used 1.5 inch screws last time, is this what i am supposed to use. also, does anyone have any other tips for avoiding wood cracking (besides pilot wholes, thats a given). thanks in advanced.

12-05-2004, 10:52 PM
just pre drill the holes before you drill them that will stop most all cracking, and dont try to countersink them without a countersink hole if there not self countersinking, trying to drill them in deeper will cause cracking

Moe Lester
12-05-2004, 10:55 PM
1 5/8" screws are fine. One screw every 4 to 5 inches is plenty if you are using wood glue. Put the first one ~1.5" from the end of the board. Like vosschs said, predrill and countersink them also.

12-05-2004, 11:03 PM
i use 1 5/8" screws. Be sure to use the coarse threaded ones. Don't crack the wood, and if you do, fill it in with wood glue right away and clamp it tight.

12-05-2004, 11:07 PM
thanks and i did use a counter sink bit fyi.