A 10 by 20 tarp covers a lot of ground, literally. It drapes over a woodpile, shelters a car, lines a paint floor, or anchors a weekend camp. The right one stays put through wind, sheds rain without leaking, and folds away cleanly when the job ends. The wrong one frays at the grommets or tears the first time you cinch it down.
This guide sorts ten options by thickness, build, and use case, so you can match the tarp to your project without overpaying.
Your Options, Compared
RhymBar 10×20 FT Waterproof Heavy Duty Tarp, 10 Mil Brown/Black
GUARD SHIELD Extreme Heavy Duty Black Poly Tarp 10×20 Feet 20mil
Tarpco Safety Heavy Duty 10 Mil Tarp Cover Green/Black 10 x 20
Patiobay Tarp 10×20 Feet 8 Mil Heavy Duty Waterproof Black
Patiobay Large Tarp 10×20 FT Heavy Duty Waterproof 14 Mil Brown
GUARD SHIELD Heavy Duty Tarp 12×16 Feet Green 10mil
GUARD SHIELD Tarps Heavy Duty Waterproof 20×20 Feet Black 10mil
Patiobay Large Tarp 10×20 FT 16 Mil Heavy Duty Waterproof Silver
GUARD SHIELD Heavy Duty Tarp 10×20 Feet White Multi Purpose 10mil
Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover White 10 x 20
The RhymBar tarp is the kind of cover you reach for when you do not know exactly what the weekend will throw at you. A reversible brown and black PE sheet, it lays flat across a stack of patio furniture one day and gets cinched over a small boat the next. The 10 mil thickness puts it in the same conversation as Tarpco Safety’s entry, but the dual color scheme gives you a tidy way to match surroundings or flip the cleanest side up.
Compared to the GUARD SHIELD 20mil on this list, RhymBar is lighter and easier to fold for storage. Where it really earns its place is in yards where the cover needs to blend rather than dominate. You may find the 2 foot grommet spacing forces you to add a few extra tie-downs on wider spans.
Where It Excels
- Reversible two-tone design lets you pick the cleaner face for guests or photos
- Hot-sealed, rust-proof metal grommets hold up in damp coastal and winter conditions
- Double-sided waterproofing plus UV resistance covers rain and sun in one sheet
- Reinforced edges and corners add real strength at the wear points
Worth Noting
- 10 mil is sturdy, but heavy snow loads may require additional support underneath
- Grommet spacing at roughly 2 feet can limit tie-down options on irregular shapes
Key Specs
Made For
Homeowners juggling seasonal yard tasks, from covering a grill to wrapping a small trailer for storage.
Look Elsewhere When
You want the thickest build on the list, in which case the GUARD SHIELD Extreme Heavy Duty Black Poly Tarp 10×20 Feet 20mil is the better match.
When the cover needs to disappear and hold up for months at a stretch, the GUARD SHIELD Extreme earns its name. At 20 mil thick, it is twice the weight of the RhymBar tarp above, which means it lays flatter in wind and resists tearing when you drag it across rough decking. The black polyethylene sheet absorbs sun and stays flexible across temperature swings.
Compared to the Tarpco Safety 10 mil entry, this is the upgrade path when weight matters more than easy folding. You may find the extra thickness worth carrying for long-term roof protection or job-site equipment covers where failure is not an option.
The Upside
- 20 mil thickness handles serious wind and abrasion
- Rope-reinforced hem adds tear strength at the edges
- Washable and reusable surface extends service life
- Heat-sealed seams block water at vulnerable joints
Trade Offs
- Heavier weight makes solo handling awkward for some users
- Larger folded footprint in storage
Key Specs
Best Suited To
Contractors and homeowners needing semi-permanent protection for vehicles, equipment, or roof repairs.
Reach For A Different Pick When
You prefer a lighter, easier-to-fold sheet for quick weekend jobs, where the Patiobay 8 mil tarp is a friendlier choice.
Tarpco Safety leans hard on material purity, and that matters for tarps left out through full seasons. Virgin polyethylene (plastic that has never been reprocessed) means the sheet will not become brittle the way recycled blends sometimes do. A 14 by 14 weave count describes how tightly the plastic threads are crossed, and this one sits in the durable middle of the range. The green and black reversible color matches the GUARD SHIELD white in flexibility but lands a more natural fit for wooded yards.
Where it stands out against the RhymBar entry is in the raw material quality. You may find the metal grommets at 24 inch spacing less dense than the GUARD SHIELD 18 inch layout, but the reinforced edges compensate where it counts.
Real-World Strengths
- 100% virgin polyethylene resists rot and UV breakdown across seasons
- Reversible green/black color works in gardens and driveways
- Reinforced edges and metal grommets every 24 inches hold tension
- Full finished sizing means you get the full 10 by 20 feet, not a cut-down sheet
Points To Keep In Mind
- Grommets every 24 inches may require extra clips on larger frames
- 10 mil weight is lighter than the GUARD SHIELD 20 mil option
Feature Snapshot
Whose Shelf It Belongs On
Homeowners who leave tarps up through storms, snow, and summer sun without replacing them yearly.
Not Your Match When
You want a white, light-reflective surface for a paint booth or sunny patio, where the GUARD SHIELD Heavy Duty Tarp 10×20 Feet White Multi Purpose 10mil fits better.
The Patiobay 8 mil tarp is the sensible pick when you need coverage but not commitment. At 8 mil, it folds into a closet shelf without protest and unrolls fast for ground sheets, paint drop cloths, or quick shelter over stacked lumber. The all-black finish keeps it discreet against fences and dark surfaces.
Against the heavier Patiobay 14 mil sibling on this list, it is a lighter-duty sibling that trades thickness for easy handling. You may find the 8 mil body fine for indoor and sheltered outdoor jobs, but you will want a thicker option like the Patiobay 16 mil silver tarp for sun-baked patio work.
The Case For It
- Lightweight build makes solo deployment and refold quick
- Full finished size covers standard ground sheet areas
- Virgin polyethylene base material resists quick UV failure
- Black color hides stains from soil and paint splatter
Small Caveats
- 8 mil thickness can puncture on sharp branches and rough framing
- Not the right choice for sustained winter snow loads
Right Fit For
DIYers needing a general-purpose cover for occasional projects, paint days, or temporary ground protection.
Consider Something Else When
You need reflective, sun-deflecting performance for a pool or patio setup, where the Patiobay Large Tarp 10×20 FT 16 Mil Heavy Duty Waterproof Tarps Silver is the smarter fit.
The 14 mil Patiobay is the middle child of this list, and that is exactly why it works for so many people. It weighs roughly 6.35 ounces per square yard, a measurement that translates to a tarp you can wrestle onto a roof solo but that does not flap itself apart in a breeze. The brown finish blends into landscaping in a way the silver and white options cannot.
Compared to the Patiobay 8 mil entry above, this is the upgrade for year-round outdoor placement. The trade-off is extra bulk in your storage bin, but for most homeowners that cost is paid back the first time a sudden storm hits.
Everyday Perks
- 14 mil thickness balances durability and manageable weight
- Brown color suits woodpiles, sheds, and natural backdrops
- UV-resistant coating slows sun damage during summer exposure
- Full finished sizing ensures the 10 by 20 measurement is exact
Some Limits To Know
- Heavier than 8 or 10 mil options for transport
- Brown color absorbs heat, less ideal for plant covers in midsummer
Who Will Love This
Homeowners seeking one tarp they can deploy in spring and leave through fall without worrying about mid-season replacement.
Skip It When
You need a heat-reflective cover for a sunny pool or patio area, where the Patiobay Large Tarp 10×20 FT 16 Mil Heavy Duty Waterproof Tarps Silver handles the sun load better.
Strictly speaking, this is a 12 by 16 tarp, not a 10 by 20, and that smaller rectangle is exactly the point. Some jobs do not want the extra slack of a 20 foot side: a small trailer, a stack of kayaks, a woodpile against a garage wall. The GUARD SHIELD green finish is easy on the eyes and matches the Tarpco Safety green for landscape-friendly setups.
Where it differs from the GUARD SHIELD 10 by 20 black is shape rather than thickness. Both run 10 mil with woven and coated polyethylene construction. For covers needing the long rectangle, you will want to step up to a true 10 by 20 elsewhere on this list.
Well-Handled Touches
- 12 by 16 footprint fits narrow or stacked loads precisely
- Rustproof aluminum grommets spaced every 3 feet work with standard bungee cords
- Heat-sealed seams block water at panel joints
- Washable and reusable surface simplifies spring cleanup
Areas To Watch
- Smaller coverage area falls short for full-size vehicles
- Grommet spacing at 3 feet is wider than the 18 to 24 inch options elsewhere
Built With In Mind
Owners with narrow coverage jobs, like a side-yard trailer or a stack of outdoor furniture against a wall.
Where Another Pick Suits Better
You need a true 10 by 20 rectangle for car or boat coverage, in which case the RhymBar 10×20 FT Waterproof Heavy Duty Tarp 10 Mil Brown/Black is a closer match.
The 20 by 20 square layout sets this GUARD SHIELD apart from the 10 by 20 rectangles elsewhere on the list. A square sheet is the right shape when you are patching a roof section, laying down a paint floor, or building a quick ground canopy. At 10 mil, it shares the same thickness as the smaller GUARD SHIELD 10 by 20 white entry, so the choice comes down to shape and color.
Compared to the RhymBar reversible brown and black, this is a single-tone black sheet that disappears against dark roofing felt and tar. The trade-off is the larger folded footprint, which is worth noting if your storage space is tight.
A Few Strong Suits
- Square 20 by 20 layout fits roof patches and canopy frames
- Heat-sealed seams and rope hem keep edges intact
- Woven and coated polyethylene resists tearing on rough surfaces
- Washable surface handles paint and dirt cleanup
Practical Considerations
- Larger folded size takes more storage room
- 10 mil weight is lighter than the GUARD SHIELD 20 mil extreme option
Perfect Match For
DIYers handling flat-roof repairs, paint projects, and ground sheets where a square layout is more useful than a rectangle.
A Better Fit Elsewhere
You need a long rectangle for vehicle coverage, where the Tarpco Safety Heavy Duty 10 Mil Tarp Cover Green/Black 10 x 20 is purpose-built.
Silver tarps earn their place in summer, and the 16 mil Patiobay sits at the top of this list’s silver-coated options. The reflective finish bounces sun rather than absorbing it, which keeps water cooler under the sheet and slows UV breakdown of whatever you are covering. It is the cover to reach for over pool equipment, patio cushions, or a stack of materials stored outside through a hot July.
Against the Patiobay 14 mil brown sibling, the silver wins on heat management. The trade-off is visibility: silver does not blend into natural backdrops. For dark roofs or shaded yards, the brown option may be a quieter choice.
What Works In Its Favor
- 16 mil thickness handles weather and rough ground contact
- Silver reflective surface reduces heat buildup underneath
- UV-resistant coating extends service life in direct sun
- Full 10 by 20 finished size covers standard patio furniture groups
Things To Weigh Up
- Silver finish shows dirt and water staining more than darker colors
- Heavier than the 8 and 10 mil options on this list
Quick Facts
Who Should Grab It
Pool owners, patio entertainers, and sunbelt residents who need heat-reflecting coverage through long summers.
Swap It Out When
You prefer a tarp that visually disappears in a wooded yard, where the Patiobay Large Tarp 10×20 FT Heavy Duty Waterproof 14 Mil Brown is the better match.
A white tarp earns a spot in any shop or paint garage, and the GUARD SHIELD white sheet fills that niche well. The bright surface brightens the work area underneath, which helps when you are painting furniture or refinishing a floor and need clear visibility of what is dry and what is not. At 10 mil, it matches the standard GUARD SHIELD build you find on the 20 by 20 black entry.
Where it stands apart from the Core Tarps white on this list is that the Core sheet runs heavier at 20 mil with a tighter weave. For light shop duties, the 10 mil weight handles the job without the storage penalty of a thicker sheet.
Practical Pluses
- White finish reflects light into paint and work areas
- Heat-sealed seams block paint and water from seeping through
- Aluminum grommets every 3 feet accept standard hooks and bungees
- Washable surface stands up to repeat paint use
Worth Bearing In Mind
- White shows every stain, from mud to paint spills
- Grommet spacing at 3 feet is wider than tighter-spaced competitors
Right Fit For
Painters, woodworkers, and hobbyists needing a light, bright drop cloth for indoor or covered outdoor work.
Consider Something Else When
You need a heavier white tarp for outdoor exposure, where the Core Tarps Extreme Heavy Duty 20 Mil Tarp Cover White 10 x 20 is the stronger choice.
The Core Tarps extreme is the heaviest white sheet on this list and the one that best marries bright color with serious thickness. A 16 by 16 weave count packs more reinforcing threads per inch than the Tarpco Safety 14 by 14 entry, which translates to better puncture resistance on rocky ground or underfoot job-site traffic. The 20 mil build shares a profile with the GUARD SHIELD extreme black tarp above.
You may notice the brand notes that thickness can vary slightly from stated specs, an honest disclosure worth weighing if your application depends on an exact mil. For most homeowners, the variance is irrelevant; for tight commercial specs, verify on arrival.
What Pays Off
- 20 mil thickness paired with 16 by 16 weave adds serious tear resistance
- Virgin polyethylene base material slows UV-driven rot
- Metal grommets every 18 inches allow precise tie-down placement
- White finish suits bright workshop and event setups
Trade-Offs To Consider
- Heavier weight makes solo handling more demanding
- Reported thickness may vary slightly from the 20 mil listed figure
Feature Rundown
Made For
Job-site supervisors and serious DIYers who need the toughest cover available in a bright, light-friendly color.
Not Your Match When
You want a lighter sheet for occasional weekend use, where the Patiobay Tarp 10×20 Feet 8 Mil Heavy Duty Waterproof Black is a more relaxed fit.
What To Weigh Before Choosing Your 10 by 20 Tarp
Thickness And Mil Rating
Mil is a unit of thickness where one mil equals one thousandth of an inch. An 8 mil tarp folds easily and handles short jobs, but the 14 to 20 mil options stay flatter in wind and resist tearing when you drag them across rough surfaces. For covers that stay out through winter, 14 mil and up makes the difference between a sheet you replace every year and one that lasts several seasons.
Weave Count And Material Purity
A higher weave count, like 14 by 14 or 16 by 16, means more reinforcing threads per inch and better puncture resistance. Virgin polyethylene (new plastic, never reprocessed) holds up under UV longer than recycled blends, which sometimes turn brittle after a summer or two in direct sun. If the tarp lives outside year-round, both factors matter.
Grommet Spacing And Edge Reinforcement
Tighter grommet spacing, every 18 to 24 inches, gives you more tie-down points and a cleaner pull on irregular shapes. Heat-sealed seams and rope-reinforced hems (the folded and stitched border along each side) prevent the fraying that kills most tarps before the body wears out. For windy sites, both upgrades are worth seeking.
Color And Surface Heat
Silver and white finishes reflect sunlight, which keeps the covered area cooler and slows material breakdown. Brown and black absorb heat, which can help in cold climates but cooks sensitive gear in summer sun. Match the color to your climate and what you are covering.
Smarter Choices With These Picks In Hand
Pitfalls Shoppers Hit
Many tarp listings advertise a size that turns out to be the cut size before the hem is folded in, leaving you with a sheet a few inches short of the stated dimension. Look for “finished size” language when it matters. Another common trap is choosing the lightest weight to save money and watching it tear at the grommets the first strong weekend. Match thickness to the longest stretch of time you expect the cover to stay deployed, not the price tag alone.
When Paying More Pays Off
The jump from 10 mil to 20 mil is not subtle, and the thicker sheet earns its keep when covers face wind, falling branches, or heavy snow. Tighter weave counts and virgin polyethylene also slow the slow rot that ends a tarp’s life under UV. Spending more upfront often means replacing the tarp less often, which adds up over a decade of yard work.
Frequently Asked Questions
How thick should a 10 by 20 tarp be?
For light, occasional use, 8 to 10 mil is enough. For year-round outdoor coverage, 14 mil or higher handles wind and weather without failing.
What is the difference between cut size and finished size?
Cut size is the raw panel dimension before hems are folded and sewn. Finished size is the final usable measurement, which is always a few inches smaller than cut size for the same sheet.
Are silver tarps better than black tarps?
Silver tarps reflect sunlight and stay cooler underneath, which suits pool and patio use. Black tarps absorb heat and hide dirt, which suits dark, hidden, or cold-climate setups.
Can a 10 by 20 tarp cover a car?
Yes, a 10 by 20 tarp fits most sedans and small SUVs. For longer trucks or vans, look at 12 by 20 or 20 by 20 sizes for full coverage.
How do I prevent grommets from tearing out?
Distribute tension evenly by using multiple grommets along each side, and avoid pulling on a single point. Spacing ties closer to the center reduces the lever effect that pops grommets loose.
Closing Remarks
A 10 by 20 tarp is one of the most versatile covers you can own, but the right one depends on thickness, material, and how long you plan to leave it out. Match the mil rating to your climate and the color to your setting, and the cover will quietly do its job for seasons. Pick the sheet that fits your real use, not just the one with the biggest spec sheet.