Building your own subwoofer box can be challenging, but it is certainly one of the best ways to get the look and fit you want for your project without having to spend a fortune. All you need are simple tools and materials that are easy enough for people with no woodworking experience to quickly obtain.

Building a subwoofer box can be lots of fun if you’re interested in creating your own sound system. If you love music, then this is the perfect project to get started on. But, just as everyone has different skills and likes, not everyone will be into building their own speakers - so here at DIY Speakers, we have a selection of high-quality, pre-made speaker systems that are made by professionals who know what they’re doing and are suited to your specific needs and tastes! Choosing your subwoofer.

When choosing a subwoofer, find out from the manufacturer what size box to use with your subwoofer in a trunk or other small location. For example, you could read an article from Alpine which states that “A sealed enclosure for the PWE-S10000 has a volume of 0.9 ft³”. Keep in mind that you need enough space for installation and venting purposes, so don’t pick too small a box!

When choosing a subwoofer, note the manufacturer’s recommended box volume. Choosing the appropriate box volume is especially important when selecting subs for your SUV or another vehicle. With that requirement in mind, we recommend an Alpine PWE-S10 10" subwoofer. In addition, the manufacturer recommends 0.65 cubic feet, which is just perfect for your car.

Planning your subwoofer box design

This is how you calculate truck subwoofer box dimensions to best create the perfect stereo sound. Determine Minimum Depth Of Your Box by Calculate the depth that your subwoofer will occupy in an enclosure and multiply by 2.

Determine minimum height and width of your Truck Subwoofer box

The distance between the woofer and the mounting surface is equal to the thickness of your front baffle. If you plan to mount a faceplate or grille, be sure to allow for any additional space that may be needed to accommodate it.

Determine the available space in your vehicle

Determine how much space you are willing to devote to your system. Keep in mind that the resulting sound can be dampened by too much space as well. Subwoofer enclosures need to match their speaker’s size, and wedge-shaped boxes should have the depth of the box halved at each end.

Now Sketch out your box

Now draw your box on paper, making sure it’ll still fit in your car or truck, keeping in mind that the shape might be different for each type of vehicle you are having shipped.

Determine internal dimensions and volume of box

Now that you’ve identified the measurements of your box, you need to figure out what ingredients you need to put inside. To do this, subtract the depth and length of the cut wood pieces needed for construction from the external dimensions of your box.

Calculate internal box volume in cubic inches

Because most boxes will be calculated using the volume in cubic feet. This means that when you look at your dimensions, it will be written in cubic inches. So when converting the numbers into cubic feet, we need to calculate what that means.

Adjust your box’s volume to match the sub’s specification

Now that you’ve drawn your first box, measure its dimensions with a ruler and compare it to the manufacturer’s recommendation on the packaging of one or more ingredients. If it’s too large or too small, you can make small adjustments to one dimension until the box you’ve sketched up (aka a project’s backlog) matches the manufacturer’s recommendation as closely as possible. Some manufacturers will recommend a range of enclosure volumes, and we encourage you to experiment using whatever “ingredients” or resources you feel might give good results within this range!

Determine the final exterior box dimensions

Now that we have our new seat size based on your body dimensions, we need to resize the shell of the car. Flip your ruler over and measure out 1-1/2" to add back onto what we subtracted in step 5. The new shell is then the sum of these two measurements. Make sure these new proportions fit into your car properly, so you are able to squeeze yourself in!

Step-by-step instructions for building subwoofer box for Truck

To start, we cut the rounded edges off two sides of the MDF boards to make them straight so that we could then mount them in our table saw to cut them into an equilateral triangle for the bottom of the box. You can purchase MDF board at almost any large craft store. You could also try getting it cut from a local hardware store or your own home improvement centre if need be. Either way, cut the full-sized template out as accurately as possible.

After you have the subwoofer piece on hand, use the template or a compass to mark where you will cut out the hole. Assemble the cabinet by tying together the two front pieces using plenty of wood glue and sheet metal screws. Since you are constructing a double-thickness front panel, this will help to strengthen the entire box. If you’re not going to use a double thickness mounting surface, you will want to plan on bracing the box in some other ways. In fact, even if your box is only going to be a cubic foot or smaller in circumference, it’s always a good idea to get those braces in there because of the internal pressure that will be generated inside of anything larger than that. The interior pressure can become so extreme that it seems like it might blow up your workshop if you don’t take precautions during construction.

Hi! I'm William and I've done graduation in Information Technology, and I love music. I buy lots of audio equipment, the latest audio interfaces, and hardware and use them to get proper knowledge, and after excellent judgment, I write blogs on them.