Wait Time: Please allow up to 5-7 business days to get your plans sent VIA Email
 
Our DIY Truck Subwoofer Box Plans are the perfect solution for maximizing the sound in your truck. These plans are tailored to fit your specific truck model, ensuring a perfect fit and optimal performance. With our custom plans, you can tackle your DIY project with confidence, knowing that you're doing it right and getting the most out of your system.
 
Please be sure to list your exact year truck into customer info section at checkout. We need make, model, and year. 
 
NEW AND IMPROVED PLANS! Including:
A TON of Detailed  3-d Rendering Images
Multiple outside angles
Multiple inside angles
Detailed Parts views of every part showing measurements and angles
Step BY Step Assembly Instructions with images
Pre Drill/Screw instructions with images
Specifications/ Info Sheet
Optimized Cut Sheet and Parts List
 
Skill Level
Skill level is based on your woodworking ability mixed with the tools available to you.
Novice/First Timer 
 -Very limited woodworking experience and only access to very basic tools like a jig saw or circular saw. We will Tailor your plans to be as simple as possible
Weekend Warrior
-Youve done some woodworking projects and have access to wood working tools like a circular saw/table saw and router which you feel confident in using. We will tailor your plans based on your skill/tool level.
Semi-Pro
-You do some form of woodworking for a living or your an advanced level hobbyist. You have a router table, table saw, and access to more advanced wood working tools like clamps, different router bits and are confident you can build almost anything with instruction. By Selecting this, your looking for something with detailed features using more advanced methods. 
 
Box designs are only for the following trucks. If you order a plan for a truck we do not offer, you will be provided with the closest fitting plans we offer. NO REFUNDS for not correctly reading the below list of trucks we offer plans for.
TRUCK LIST
07-18 Chevy & GMC Crew Cab
08-24 Ford F-150 Crew Cab
17-24Ford F250 & F350 Cab
18-24 Chevy & GMC Crew & DBL Cab
19+ RAM 1500
 
Some Options Require a Seat Lift
 DODGE RAM BOXES
All Subwoofer combos requires a seat lift!
2008-2018 GM-Chevy/GMC Boxes
These options will not need a seat lift
(1-4) 6.5", (1-2) 8"
These options  will Require a seat lift
(4+) 6.5s, (3+ ) 8s, any quantity of 10" or larger 
2019-2024 GM-Chevy/GMC Boxes
These options will not need a seat lift
(1-6) 6.5", (1-4) 8s, (1-2) 10s 
These options  will Require a seat lift
 (+2) 10s, any quantity of 12s 
FORD BOXES
These options will not need a seat lift
(1-4) 6.5", (1-2) 8"
These options  will Require a seat lift
(4+) 6.5s, (3+ ) 8s, any quantity of 10" or larger 
Some larger woofers regardless of truck will require you to run a seat lift. 
We encourage the use of a seat lift whenever possible as MORE SPACE = MORE BASS in most cases. Please be sure to check out LMI WELDING for all your seat lift options to see which seat lift can be used for your truck!
 
🛠️ Recommended Tools & Supplies for Building Your Own Subwoofer Box
📐 Cutting Parts from Your Cut List
Before assembly begins, precision cuts are key. Depending on your setup and budget, you’ll need one or more of the following:
Tape Measure – For accurate measurements.
Straight Edge – Ensures clean, straight cuts.
Square – Critical for maintaining perfect 90° angles.
Circular Saw, Jig Saw, or Table Saw – Choose based on your workspace and comfort level.
Safety Glasses – Protect your eyes from flying debris.
Dust Mask – Keep your lungs safe from sawdust.
🔊 Cutting Subwoofer Mounting Holes
Clean, accurate cutouts for your subwoofer are crucial for both fit and performance:
Jig Saw – A flexible option for manual cutouts.
Router with ¼" Spiral Straight Cut Bit and Circle Jig – Ideal for perfect circles and smooth edges.
🌀 Creating Round Overs
Round overs help reduce edge diffraction and give your box a pro finish:
Sandpaper and Sanding Block or Power Sander – Great for manual smoothing.
Router with ⅜" Round Over Bit – For consistent, clean edge profiles.
🪟 Window Braces, Plexiglass Cutouts & Stack Fab Parts
For more advanced builds with visual elements or layered construction:
Jig Saw or Router with Templates/Straight Edge – For custom shapes and precision.
Router Table – Highly recommended for stack fab parts to ensure uniformity and clean edges.
🔧 Assembly Essentials
Putting it all together requires a mix of adhesives, fasteners, and alignment tools:
Wood Glue (TiteBond 2 recommended) – Strong, reliable bond.
Clamps – Optional but extremely helpful for holding parts during drying.
1¼" Coarse Thread Wood Screws – Drywall screws work great.
Brad Nail Gun (18G Nails, 1¼") – Optional, but excellent for temporary hold while glue sets.
Pencil & Square – For marking and alignment.
Drill/Impact Driver with Philips Head Bit – Or a screwdriver if you're keeping it old school.
⅛" Drill Bit & ⅜" Countersink Bit – If you're using screws, these are a must.
🧪 Fiberglass-Specific Supplies (For Advanced Builds)
If your box design includes fiberglass elements, here’s what you’ll need:
Tape – For masking and layout.
Multiple 2" Chip Brushes – Disposable and perfect for resin application.
Fiberglass Resin (1qt usually sufficient) – Choose quality resin for durability.
Fiberglass Mat (1 yard is plenty) – Adds strength and structure.
Gloves – Protect your hands from resin and chemicals.
Mixing Cups – For accurate resin/hardener ratios.
Acetone – Essential for cleanup.
🧱 Surface Prep & Finishing
To get that smooth, professional finish:
30–80 Grit Sandpaper – For rough patches and heavy imperfections.
Bondo/Body Filler (1 GAL recommended) – Better to have extra than run out mid-project.
80–150 Grit Sandpaper & Block or Sander – Block sanding gives the best results.