Is the 20 by 30 ft. size the actual size?

Yes. Core Tarps lists the finished hemmed size, so the tarp measures 20 by 30 ft. out of the bag. Many budget tarps are cut smaller than advertised.

How thick is this tarp?

It is 16 mil thick at 265 GSM, which puts it in the heavy-duty range. That is thicker than common 5 to 8 mil tarps and better suited to repeated outdoor use.

Can it be used on a roof?

Yes. It is fully waterproof and UV stabilized, so it works as a temporary roof patch. Fasten through the grommets every 18 in. and avoid sharp edges.

Does it resist mold and sun damage?

The polyethylene is mildew resistant and UV stabilized on both sides. It still lasts longer if you let it dry before folding and storing.

How many people does it take to handle?

At 20 lb and 20 by 30 ft., two people are practical for spreading and folding. One person can manage smaller folded sections.

One 20 ft. by 30 ft. blue polyethylene tarp. Grommets and reinforced edges are built in; ropes and tie-downs are not included.

Where is the Core Tarps Heavy Duty Waterproof Tarp cheapest?

At Tractor Supply Co, for $142.99, as of our latest check.

Where can I buy the Core Tarps Heavy Duty Waterproof Tarp?

3 stores we checked sell it, including Tractor Supply Co, The Home Depot, Lowe's.

Core Tarps Heavy Duty Waterproof Tarp Price History: Lowest $142.99

From Tractor Supply Co

Extra heavy duty 20 ft. by 30 ft. blue polyethylene tarp for outdoor and rural jobs
Woven 100% virgin polyethylene, laminated both sides, 265 GSM, 16 mil thickness
Double-stitched, rope-reinforced edges with metal grommets every 18 in.
Fully waterproof, UV stabilized and mildew resistant on both sides
Listed at finished hemmed size, so the 20 ft. by 30 ft. is what comes out of the bag
Use as equipment cover, truck bed liner, firewood or hay cover, roof patch, canopy or ground sheet

Materials: 100% virgin polyethylene, woven 14 by 16 weave count, laminated on both sides, 265 GSM, 16 mil thickness; metal grommets
Fit: 20 ft. by 30 ft. finished hemmed size
Sizing: Sold at the finished hemmed size, so the labeled 20 ft. by 30 ft. is the actual size, not the pre-cut measurement
Care: Hose off mud or debris, allow to air dry, and refold along the original creases
Guarantee: 30 day Core Tarps manufacturer warranty against defects in materials and workmanship, with replacement coordinated through the original retailer
In the box: 20 ft. by 30 ft. blue polyethylene tarp

About the Core Tarps Heavy Duty Waterproof Tarp

This is a blue heavy duty tarp measuring 20 ft. by 30 ft. It is made of woven 100% virgin polyethylene with a 14 by 16 weave count, laminated on both sides. The fabric is 265 GSM and 16 mil thick.

The edges are hemmed, double-stitched and reinforced with rope. Metal grommets are spaced every 18 in. The tarp is waterproof, UV stabilized and mildew resistant on both sides.

The 20 ft. by 30 ft. size is the finished hemmed size, not the pre-cut measurement. Uses include covering equipment, firewood or hay, lining a truck bed, patching a roof, making a canopy, or covering the ground.

Size: 20 ft. by 30 ft. (finished hemmed size)
Color: Blue
Material: 100% virgin polyethylene, woven 14 by 16 weave count, laminated both sides
Fabric weight: 265 GSM
Thickness: 16 mil
Grommets: Metal, every 18 in.
Edges: Double-stitched, rope-reinforced
Weight: 20 lb
Care: Hose off mud or debris, air dry, refold along the original creases
In the box: One 20 ft. by 30 ft. blue polyethylene tarp