What Tarp Thickness Do I Need? (Complete Guide)
Posted by CanopiesAndTarps on Apr 27th 2026
What Tarp Thickness Do I Need? (Complete Guide)
Choosing the right tarp thickness is one of the most important factors in determining durability, performance, and lifespan. Whether you're covering equipment, building a shelter, or protecting materials outdoors, thickness plays a major role in how well your tarp holds up.
This guide explains tarp thickness (mil), what it means, and how to choose the right option for your needs.
What Does “Mil” Mean?
Tarp thickness is measured in mils, where one mil equals one-thousandth of an inch (0.001"). The higher the mil number, the thicker and more durable the tarp.
- 5 mil = 0.005 inches
- 10 mil = 0.010 inches
- 12 mil = 0.012 inches
Tarp Thickness Guide
| Thickness | Duty Level | Best Use |
|---|---|---|
| 5–8 Mil | Light Duty | Temporary coverage, indoor use, light protection |
| 9–11 Mil | Medium Duty | General outdoor use, short-term protection |
| 12 Mil+ | Heavy Duty | Long-term outdoor use, construction, equipment |
How to Choose the Right Tarp Thickness
- Short-term use: 5–8 mil tarps are sufficient for temporary coverage
- General outdoor use: 9–11 mil tarps offer a balance of durability and flexibility
- Heavy-duty applications: 12 mil or thicker tarps provide the best long-term protection
Compare thickness options in our 12 mil vs 10 mil tarp guide.
Why Tarp Thickness Matters
- Improves durability: Thicker tarps resist wear and tear
- Reduces tearing: Better performance under stress and wind
- Extends lifespan: Holds up longer in outdoor conditions
- Better weather protection: Handles rain, snow, and sun exposure
Best Thickness for Common Uses
- Construction sites: 12 mil+
- Outdoor storage: 12 mil+
- Furniture & patio: 9–12 mil (or breathable canvas)
- Temporary covers: 5–8 mil
Recommended Tarp Options
- Super heavy duty tarps (12 mil+): Best for long-term outdoor use
- Medium-duty tarps: Good for general coverage
- Light-duty tarps: Ideal for short-term or indoor use
Browse super heavy duty tarps for maximum durability and performance.
Helpful Resources
FAQs: Tarp Thickness
What thickness tarp should I use for outdoor use?
A 12 mil tarp is recommended for most outdoor applications due to its durability and weather resistance.
Is a 10 mil tarp strong enough?
A 10 mil tarp works well for general use, but for long-term or heavy-duty applications, a 12 mil tarp is a better choice.
What is the most durable tarp thickness?
12 mil and thicker tarps are considered heavy-duty and offer the best durability for demanding environments.
Does thicker tarp mean better quality?
Generally, thicker tarps are more durable, but material type and construction also play an important role.