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Design a Subwoofer Box with Custom Blueprints

Choose your subwoofer, adjust box volume and tune your port.

Beta Version 1.2 This tool is still being tested. Please report problems and verify every measurement before cutting material.
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DIYAudioGuy tools, calculators, simulations, and blueprints are provided for educational and planning purposes only. Use them at your own risk.

Building and installing subwoofer enclosures involves real hazards, including but not limited to cuts, eye injuries, hearing damage, lifting injuries, vehicle damage, electrical hazards, and other serious injury. Always wear appropriate PPE, use all safety guards and safety features on your tools, follow the tool manufacturer's instructions, and do not work while impaired by alcohol, drugs, fatigue, or distraction. You are solely responsible for safely building, lifting, securing, wiring, and installing any enclosure or audio equipment.

Driver specifications, dimensions, T/S parameters, and other product data may be based on published manufacturer information, which can be incomplete, inconsistent, outdated, or incorrect. Before cutting wood or purchasing materials, you are responsible for verifying all driver dimensions, port dimensions, enclosure dimensions, clearances, fitment, and materials against the actual parts you will use.

These tools do not guarantee a specific sound quality, output level, frequency response, performance result, or suitability for your vehicle or system. The flexibility of the calculator means it is possible to design an enclosure that fits the math but performs poorly, sounds bad, exceeds equipment limits, or does not meet your expectations. You are responsible for reviewing the design and deciding whether it is appropriate for your goals.

You are also responsible for complying with all applicable laws and regulations, including traffic safety laws, vehicle modification rules, electrical codes, local noise ordinances, and any other rules that apply where you live or use the system.

By using this website, you agree that DIYAudioGuy and its creators are not liable for any errors, omissions, injuries, damages, losses, legal issues, equipment failures, poor performance, or other consequences arising from the use or misuse of these tools, calculators, simulations, blueprints, recommendations, or linked products. Beta users are limited to one set of plans per day.

*Affiliate Disclaimer: Most of the links on this website are affiliate links. If you make a purchase the website owner may earn a small commission, at no cost to you. Affiliate links are how we pay the bills, so we appreciate it when you click on them and make a purchase. Beta users are limited to one set of plans per day.