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Best Tarps for RV Launches & Boat Storage (2026)
If you store a boat for winter or tow an RV across states, a reliable tarp is one of the easiest ways to prevent water intrusion, UV damage and road debris. This guide is written for RV owners, seasonal boaters and trailer users who need covers built for launches, travel and long-term storage. We tested features buyers praise most—waterproofing, reinforced edges, grommet spacing and true-to-size fit—and prioritized tarps that balance protection with ease of use. Read on for quick winners, detailed reviews, and a buying guide that explains what RV and boat owners should look for in 2026.
Quick Answer
For protecting RVs and boats during launches, travel and off-season storage, the Double-Sided Waterproof Poly Tarp 20x30 (ASIN B0D73B9FPM) is the top pick for balanced size, waterproofing and easy grommet placement. If you need a heavy-duty, budget-friendly heavy-mil option choose the Heavy Duty 12x16 12mil tarp (ASIN B0CYBVTWXB).
Our Top Picks
Quick Comparison
Select 2-3 products to compare side-by-side
| Compare | Product | HandleSmith Score | Price Tier | Key Feature | Best For | Action |
|---|---|---|---|---|---|---|
20x30 5mil Poly Tarp
|
Premium | Double-sided waterproof with UV coating | Large boat or RV covers | Check Price | ||
14x30 5mil Tarp
|
Mid-Range | Large rectangular size for long boats/trailers | Long boats and trailer decks | Check Price | ||
14x20 8mil Tarp
|
Mid-Range | 8 mil durability with reinforced edges | Moderate-duty marine and RV protection | Check Price | ||
12x16 8mil Tarp
|
Budget | 8 mil with reinforced plastic corners | Small boats, trailers, or RV accessories | Check Price | ||
12x16 12mil Tarp
|
Budget | 12 mil extra heavy-duty construction | Heavy-duty storage and harsh climates | Check Price | ||
15x15 12mil Tarp
|
Premium | 12 mil with extra edge reinforcement | Compact boats, trailers, and rooftop storage | Check Price |
1. Double-Sided Waterproof Poly Tarp 20x30 Feet 5mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
A roomy, true-to-size tarp with double-sided waterproof coating and well-spaced aluminum grommets. It’s a practical choice for owners who need reliable temporary cover during travel or seasonal storage without oversized bulk.
Key Specs
- Size: 20 x 30 feet
- Thickness: 5 mil polyethylene
- Grommets: Aluminum, spaced every 3 feet
- Coating: Double-sided waterproof with UV protection
Pros
- Generous coverage ideal for trailers and larger boats
- True-to-size measurements make fit planning easy
- Double-sided waterproofing and UV coating protect finish
Cons
- 5 mil thickness is lighter than heavy-duty options
- Grommet spacing every 3 ft may require extra tie points for windy conditions
Best For: Large boat or RV covers
Check Latest Price on Amazon2. Double-Sided Waterproof Poly Tarp 14x30 Feet 5mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
A smart mid-range option for long boats or RV trailers where length matters. Offers double-sided waterproofing, accurate sizing and light weight for easy handling when launching or removing the cover.
Key Specs
- Size: 14 x 30 feet
- Thickness: 5 mil polyethylene
- Grommets: Aluminum, every 3 feet
- UV protection and tear-resistant high-density poly
Pros
- Excellent length for long hulls or trailer loads
- Light enough to fold and store in a small bag
- Consistent waterproof protection and value
Cons
- 5 mil may not resist rough abrasion over long seasons
- Frequent wind or stretch can expose grommet points
Best For: Long boats and trailer decks
Check Latest Price on Amazon3. Heavy Duty Double-Sided Waterproof Poly Tarp 14x20 Feet 8mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
Balanced mid-range tarp that upgrades durability with an 8 mil thickness and reinforced edges. Good for owners who want stronger puncture resistance without moving up to the heaviest (and heavier) options.
Key Specs
- Size: 14 x 20 feet
- Thickness: 8 mil polyethylene
- Grommets: Rust-resistant aluminum every 18 inches
- Reinforced edges and plastic corner protection
Pros
- Better puncture and tear resistance than 5 mil options
- Frequent grommet spacing for secure tie-downs
- Reinforced corners reduce failure points
Cons
- Heavier to handle when wet compared with 5 mil tarps
- Mid-range price may still be overkill for short-term cover
Best For: Moderate-duty marine and RV protection
Check Latest Price on Amazon4. Heavy Duty Double-Sided Waterproof Poly Tarp 12x16 Feet 8mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
Compact and tougher than thinner tarps, this 12x16 8 mil model is a good fit for small boat covers, outboard motors, or stowed gear in travel. Reinforced edges help with repeated tie-downs at ramps.
Key Specs
- Size: 12 x 16 feet
- Thickness: 8 mil polyethylene
- Grommets: Aluminum every 18 inches
- Reinforced edges and plastic corners
Pros
- Easier to manage solo for launch/landing tasks
- Reinforced edges increase longevity for regular use
- Good balance of weight and protection
Cons
- May be small for larger RV roofs or full-coverage needs
- Not as heavy-duty as 12 mil alternatives for long-term storage
Best For: Small boats, trailers, or RV accessories
Check Latest Price on Amazon5. Heavy Duty Double-Sided Waterproof Poly Tarp 12x16 Feet 12mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
A budget-friendly heavy-mil tarp favored for long-term boat storage or harsh-winter protection. The dense 12 mil material and close grommet spacing handle wind and abrasion better than thinner covers.
Key Specs
- Size: 12 x 16 feet
- Thickness: 12 mil polyethylene
- Grommets: Aluminum every 18 inches
- Extra reinforcement at edges and corners
Pros
- High puncture resistance for long-term storage
- Close grommet spacing allows firm tie-downs
- Good value for an extra-heavy tarp
Cons
- Heavier and bulkier to store and deploy
- Smaller size may not fit larger RVs or boats
Best For: Heavy-duty storage and harsh climates
Check Latest Price on Amazon6. Heavy Duty Double-Sided Waterproof Poly Tarp 15x15 Feet 12mil Thick Polyethylene Tarps, Perfect for Outdoor Use, Plastic Cover & Mat for Tent Camping Storage Boat Bikes Vehicles
A premium-feel 12 mil tarp in a square 15x15 footprint—great for protecting smaller craft, rooftop cargo or gear boxes. Reinforcement and robust grommets suit repeated use at marinas and on the road.
Key Specs
- Size: 15 x 15 feet
- Thickness: 12 mil polyethylene
- Grommets: Aluminum every 18 inches
- Extra edge and corner reinforcement
Pros
- Premium durability for frequent launches and storage cycles
- Well-reinforced edges resist fraying and tears
- Good middle-ground size for rooftop or small boats
Cons
- Square shape limits use on very long hulls or trailers
- Heavier than 5–8 mil alternatives for one-person handling
Best For: Compact boats, trailers, and rooftop storage
Check Latest Price on AmazonWhich One Should You Choose?
If budget is tight → choose the Heavy Duty Double-Sided 12x16 12mil (ASIN B0CYBVTWXB), a value-packed heavy-mil tarp for long-term storage. If you need portable, easy handling for occasional launches → choose the Double-Sided Waterproof Poly Tarp 20x30 5mil (ASIN B0D73B9FPM) for its size and manageable weight. If premium durability matters for harsh winters → pick a 12 mil reinforced option like the Heavy Duty 15x15 12mil (ASIN B0CYB7M2H9) or the 12x16 12mil model depending on shape and coverage needs.
Best for Specific Scenarios
- Off-season boat storage: Heavy Duty 12x16 12mil (ASIN B0CYBVTWXB) because the 12 mil material resists punctures, UV and winter abrasion for long-term protection.
- Transporting an RV or trailer: Double-Sided Waterproof Poly Tarp 20x30 5mil (ASIN B0D73B9FPM) because the large footprint and double-sided coating protect from road spray and debris while remaining manageable for a two-person install.
- Marina launches and frequent use: Heavy Duty 14x20 8mil (ASIN B0CYBX2HWF) because reinforced edges and closer grommet spacing handle repeated tie-downs and windy ramps without quick wear.
Frequently Asked Questions
How thick should a tarp be for boat storage?
For short-term cover or travel protection, 5 mil works and is easy to handle. For frequent launches, winter storage, or abrasive environments choose 8 mil or 12 mil—12 mil gives the best puncture and abrasion resistance for long-term protection.
Will a waterproof tarp cause condensation and mold on my boat or RV?
Fully waterproof tarps can trap moisture. To reduce condensation, use raised tie points to allow air circulation, periodically remove the tarp to dry the surface, or add breathable underlayers or vents when possible.
How should I secure a tarp to my trailer or roof for transport?
Use the tarp’s grommets with ratchet straps or cam straps anchored to trailer tie points. Choose tarps with closer grommet spacing (every 18 inches) for transport to allow more secure attachment. Avoid sharp edges and use protective padding near metal fittings to prevent abrasion.
How We Selected These Products
Our recommendations are based on data-driven analysis: we evaluated 100770+ products across 13951+ brands using a composite scoring system that weighs rating (40%), review volume (30%), price value (20%), and demand signals (10%). Every product is ranked by data, not opinions.
Last updated: July 07, 2026
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HandleSmith Score is our editorial ranking based on a composite analysis of product quality, value, and verified customer sentiment. Click through to Amazon for current pricing, availability, and live customer reviews.