Coil Bag Truck Tarp Wedge Style for Rolled Steel on Flatbed Trailer
- Made of 18oz Vinyl Coated Polyester
- Fitted design slips on quick and secures with bungee cords
- 72 inch x 72 inch across top half of coil
- Tapers out to 102 inch x 102" at base
- Two rows of D-rings on all four sides
Other sizes / colors ship within 5 business days
Description
Main Description
Coil Bag is a popular style of tarp used to protect rolled steel or aluminum coils while being transported on a flatbed truck and trailer. Coil bags drastically speed up the tarping process and weigh substantially less than a lumber tarp.
Lookout Mountain Tarp offers three styles of coil bags, each with different advantages. This one is known as a wedge style coil bag and many drivers prefer because it slips on after the chains have been installed and secures the same way a lumber tarp would. The wedge shape provides extra coverage around the chains eliminating the coverage gaps found with other styles of coil bags.
It will be constructed using our heavy duty 18oz vinyl coated polyester fabric. The fabric panels are sewn together using a double lock stitch with our black 277 polyester bonded thread. To prevent the coil's sharp edges from cutting threads the seams are inside out, sewn twice, and reinforce with webbing. D-Rings are inserted into these seams adding 14 attachment points in crucial areas. Two additional rows of D-Ring will wrap around the center of the tarp. The edges of the tarp are folded over creating a 2-ply hem that is reinforced with webbing. #2 brass locking spur grommets are machine punched in the corners as well as about every 24" around the hem.

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Fabric Quality
Most flatbed lumber tarps are constructed from 18oz vinyl but not all 18 ounce fabrics are created equal. Shops that primarily build truck tarps tend to use the least expensive option because of this product’s short lifespan. Truck tarps only make up about 10% of our production and most of what we build requires higher grade vinyl with more flex, better UV treatment, and a clean matte finish. Using this fabric adds about $40 to the bottom line but drivers who take care of their tarps will earn that back in no time.
Webbing reinforcements

Our tarps are constructed with 2” black polypro webbing rated for a 600lbs load limit. Most shops use slit film which costs half the price but in our experience this thicker heavier webbing helps stiffen the tarp’s side walls to defend against wind beat. Plus the added strength helps to lock those D-Rings in place.

D-Rings

We spend an extra $0.10 for larger 2” D-rings. They are a thicker gauge with a welded seam mounted on 6,000lbs webbing. The larger ring size hangs flat inside of the webbing and can be tucked tightly against the row to prevent spinning. This tarp features 72 D-rings so using them adds another $7 to the bottom line but again it is money well spent.


Thread Size
Threads are what hold the D-rings in place and are responsible for a surprising amount of the cost. The industry standard thread size is 138 which features 21lbs breaking strength. Our truck tarps are constructed using 277 thread which has 44lbs breaking strength. This larger thread costs 50% more plus it takes more of it to sew the same distance. Once the D-Rings fall off the tarp is useless so when cutting corners threads are the absolute last thing that should be considered.
Stitch spacing
We use a 6-7 stitch spacing which means for every one inch of length there are 4 stitches. Many other brands are closer to one stitch per inch which uses 75% less thread and is probably the reason you are online searching for a new tarp guy today.
Grommets
Just like fabric all grommets are not created equal. We spend an extra $0.02 for rolled rim locking spur grommet plus an extra $0.01 for brass. As they are pressed the spurs of the washer fold into the rim of the grommet permanently fusing the two halves together. You will notice our grommets are perfectly positioned in the corners and at the seams where the fabric is 4 layers thick plus we always punch a grommet at both ends of each webbing row. Most shops use sheet grommets which install faster for less but will fail if installed in areas with a high layer count. Stainless grommets cost a little less but do not mold as perfectly when pressed which often creates sharp points that can cut your hand or scratch the load.


Availability
Lookout Mountain Tarp keeps some sizes of this tarp pre-made and ready for immediate pick up or same business day shipping, if the black 18oz option is selected. Orders for colors other than black or 14oz fabric are made to order and will ship within a week. If you have anything custom you'd like for your tarp, you can give us a call at 256-775-1322.
