Standard sizes are 3", 4", 5-1/4", 6-1/2", 8", 10", 12", 15", and 18". Actual measurements can vary significantly regardless of the manufacturer's size designation. Knowing the exact frame diameter will help to match up the speaker especially if it is placed into a recessed opening for a flush mounted look. We sell speakers in all different sizes including: 8 inch subwoofer boxes. 10 inch subwoofer boxes. 12 inch subwoofer boxes. Our subwoofers for cars and trucks range from: Mercedes subs, Lexus subs, Ford subs, Toyota subs, Nissan subs, and much more. Super Crew Sound is your site for Truck Parts and Accessories including BedRug Truck Bed Liners We offer designs for sealed/ported boxes in single/dual sizes. Starting from 6.5" to 18", different blueprints are available and easy to download! Dual 12 Inch Vented Subwoofer Box Design. $4.44 Regular price $49.99 Sale price. Same Day Shipping. Dual 12 Inch Front Ported Subwoofer Box Design. $4.44 DS18 Subwoofer Box Recommendations 6.5" -21" We here at DS18 want you to get the absolute best sound and output from your new DS18 speakers. To help our customers, we have designed a set of box specs that can help any novice or professional builders along with questions they may have about enclosure specs. 4x 6.5 or 2x 8 or 1x 12: 28 sq Vay Nhanh Fast Money.

12 inch speaker box measurements