Single 18 Inch Ported Subwoofer Box Design

$4.44 Regular price $49.99 Sale price

You Save 91% ($45.55)



The single 18-inch ported subwoofer box design provides you with the blueprints to build your own ported subwoofer box. This single 18-in sub-box design has a volume of 5.25 ftand a tuning frequency of 32 Hz. Dimensions: 34" x 29.5" x 14".

A PDF of the blueprint (box design) will be emailed in less than 30 minutes after you order. If you don't receive it, please check your spam folder or contact us at

*Note: All box designs are non-returnable. There is no refund on box designs. 

Customer Reviews

Based on 9 reviews
Tavares Waters
18 Inch Ported Enclosure

Box hits pretty good. My friend and I used this design after his brother built one from speaker box lite which didn’t sound good at all. This one here hits just right. Speaker breathes good and the lows are nice

Rich Rodriguez
18 inch single box plans

Very happy with the design if you are looking for a great box that can be built for under $100 dollars these designs are for you. Don’t get crazy spending all your money on a box built by someone else take pride and build your own

Dawson Borders
Great box

Easy to build box and clear instructions. This box makes my 18 sound perfect.

Carol Jones

Single 18 Inch Ported Subwoofer Box Design

1 x Single 18 Inch Ported Subwoofer Box Design

I highly recommend this,it makes it so much better to building a sub box,wish I had these years ago