How to Choose the Right Tarp Size (Complete Sizing Guide)
Posted by CanopiesAndTarps on May 1st 2026
Choosing the right tarp size is one of the most important steps in getting proper coverage. A tarp that’s too small won’t protect your equipment, while one that’s too large can be difficult to secure.
This guide explains how to choose the right tarp size based on your application, along with a simple size chart to help you decide.
How Tarp Sizes Work
Most tarps are listed by their cut size, which is the size before hemming. The finished size is usually slightly smaller due to seams and reinforced edges.
- Expect tarps to be 2–6 inches smaller than listed size
- Always account for coverage needs when choosing size
Tarp Size Guide
| Coverage Area | Recommended Size | Best Use |
|---|---|---|
| Small items | 6' x 8' – 10' x 12' | Tools, furniture, firewood |
| Vehicles | 10' x 20' | Cars, small trailers |
| Large equipment | 10' x 30' – 10' x 40' | Boats, machinery |
| Large coverage | 20' x 30'+ | Construction, storage |
How to Measure for a Tarp
- Width: Measure side to side
- Length: Measure front to back
- Height: Add extra material for draping or securing
Always add extra length if you need to wrap or tie down the tarp.
Common Mistakes to Avoid
- Choosing exact size without extra coverage
- Not accounting for finished size
- Ignoring tie-down needs
- Using oversized tarps without proper securing
Choosing the Right Size for Your Use
- Storage: Add extra material for full coverage
- Vehicles: Choose slightly larger than vehicle size
- Construction: Choose larger sizes for flexibility
- Furniture: Use breathable or fitted coverage
Recommended Tarp Options
Browse super heavy duty tarps for reliable coverage in a wide range of sizes.
Helpful Resources
FAQs: Tarp Sizing
How do I know what size tarp I need?
Measure the area you want to cover and add extra material for draping and securing.
Why are tarps smaller than listed size?
Tarps are listed by cut size, and the finished size is slightly smaller due to hemming.
Should I size up when buying a tarp?
Yes, in most cases it’s best to choose a slightly larger tarp to ensure full coverage.