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Step 2Lay Out Driver Placement on Plywood
Standard interior door sizes are 30", 32" and 36" wide and 80" tall. My house is old and most doorways are 29" wide by 80" tall. With these dimensions in mind, I chose to make the overall size of the baffle 35" x 82", which should accommodate 30" and 32" doorways as well as my narrow 29" doorways. The baffle can be made as wide and/or tall as necessary for special situations.
After cutting your piece of plywood down to size (35" x 82" in this case), plan and lay out your speaker arrangement on the plywood. Use the overall driver diameters to achieve proper spacing, but make sure to leave 1.5" between woofer mounting holes to allow for 2 x 4 bracing on the backside. In my case, my woofers are exactly 12" in diameter, but require an 11" hole. For my layout, I started in the exact center of the board with the tweeters, then moved outward with the midranges, and finally placed the woofers on top and bottom. If you plan well, you can get distances between divers to be quite symmetrical.
After cutting your piece of plywood down to size (35" x 82" in this case), plan and lay out your speaker arrangement on the plywood. Use the overall driver diameters to achieve proper spacing, but make sure to leave 1.5" between woofer mounting holes to allow for 2 x 4 bracing on the backside. In my case, my woofers are exactly 12" in diameter, but require an 11" hole. For my layout, I started in the exact center of the board with the tweeters, then moved outward with the midranges, and finally placed the woofers on top and bottom. If you plan well, you can get distances between divers to be quite symmetrical.
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