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Vehicle Square Footage Calculator

Let us help you estimate how much area you need in order to soundproof parts of your vehicle.

Step 1: Select your vehicle type

Step 2: Select the areas you want to cover

Square Footage Help

The following square foot grid was created in collaboration with Second Skin customers and installation shops. All information is included as a range and is meant to be an estimate. You must measure your vehicle to be exact! If you have questions about square footage or just want to talk about your project, please call or email us.

Phone: 1-800-679-8511   |   Email:service@secondskinaudio.com

Vehicle SQFT Estimation Guide

Cars Trucks
2DR Eco/Subcompact 4DR Compact Mid Size Full Size Pickup 2DR Pickup 4DR/EXT
Floor 18-22 18-24 18-28 20-30 18-20 20-30
Doors 10-14 20-28 20-28 20-28 10-14 18-24
Ceiling 10-14 12-16 12-20 14-22 10-14 16-24
Cabin Firewall 8-12 8-12 10-15 10-15 8-10 8-14
Trunk/Cargo 15-20 15-20 16-24 18-30
Hood 14-18 14-18 14-18 16-24 14-18 14-20
Total SQFT 75-100 87-118 90-133 98-149 60-76 76-112
Sport, Transport, & Utility
Jeep SUV Full Size SUV Van Cargo Van Sprinter/Transit Van
Floor 18-25 20-30 22-36 28-44 40-65 Check out our Sprinter Van Build Packages page
Doors 12-24 20-28 20-28 24-36 24-36
Ceiling 16-24 14-26 24-36 28-46 40-65
Cabin Firewall 8-10 8-15 8-18 8-20 10-20
Trunk/Cargo 18-24 20-32 24-34 24-36 24-36
Hood 14-20 14-20 14-20 14-20 14-20
Total SQFT 86-127 96-151 112-172 126-202 152-242

To effectively measure the interior of your vehicle, use a tape measure to capture the length and width (in feet) of any surface where material will be placed. Multiply length × width to get the square footage needed for each part of the car.

  • Sound Deadening Mat: Cover at least 25% of the surface to deaden the metal. Our testing shows that 60% coverage gets you to about 95% of max results for a typical vehicle. Many customers choose to cover 100% to max out the deadening and get the full thermal insulation benefits. If you've installed an aftermarket car audio system, you should definitely cover 100%. If you're trying to save money, check out our article on how to sound deaden a car cheap.
  • Sound Deadening Liquid: Cover 100% of the metal surface with sound deadening paint. While 1 layer at 1mm thickness will deaden the metal, we recommend 2mm of Spectrum (2 layers). Some customers choose more layers depending on the application.
  • Sound Barrier: Effective automotive sound barriers work best when they're unbroken and cover as much square footage as possible. Cover 100% of the surface and minimize gaps in the barrier layer when installing.
  • Decoupler: If you're using a closed cell foam or jute product to separate two hard surfaces, plan to cover 100% of the square footage.
  • Sound Absorption: For improving acoustics in door panels, coverage depends entirely on the environment inside your door — you may get better results from cutting smaller squares and stacking them into cubes. To add heat insulation to your roof, melamine foam sheets should cover 100% of the surface.

See our ultimate guide on car sound insulation for a more complete summary of our various products.

For real-world examples of builds done by our customers, check out the Second Skin Customer Garage. Choose your car model to see previous projects submitted by Second Skin customers.

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If you're looking for help with architectural sound solutions, see our pages on soundproofing a room and acoustical material.