New! High Road 2.0! We have a new version of this program. You can find it here: High Road 2.0

Driver's Handbook on Cargo Securement - Appendix A: Default WLLs for Unmarked Tiedowns

Size (in diameter):
  • 7 mm (1/4 in):
  • 8 mm (5/16 in):
  • 10 mm (3/8 in):
  • 11 mm (7/16 in):
  • 13 mm (1/2 in):
  • 16 mm (5/8 in):
  • Chain Marks -
  • Example 1:
  • Example 2:
  • Example 3:
Grade 30 proof coil:
  • 580 kg (1300 lb)
  • 860 kg (1900 lb)
  • 1200 kg (2650 lb)
  • 1680 kg (3700 lb)
  • 2030 kg (4500 lb)
  • 3130 kg (6900 lb)
  • Chain Marks -
  • 3
  • 30
  • 300
Grade 43 High test:
  • 1180 kg (2600 lb)
  • 1770 kg (3900 lb)
  • 2450 kg (5400 lb)
  • 3270 kg (7200 lb)
  • 4170 kg (9200 lb)
  • 5910 kg (13000 lb)
  • Chain Marks -
  • 4
  • 40
  • 400
Grade 70 Transport:
  • 1430 kg (3150 lb)
  • 2130 kg (4700 lb)
  • 2990 kg (6600 lb)
  • 3970 kg (8750 lb)
  • 5130 kg (11300 lb)
  • 7170 kg (15800 lb)
  • Chain Marks -
  • 7
  • 70
  • 700
Grade 80 Alloy:
  • 1570 kg (3500 lb)
  • 2000 kg (4500 lb)
  • 3200 kg (7100 lb)
  • --------------------------------
  • 5440 kg (12000 lb)
  • 8200 kg (18100 lb)
  • Chain Marks -
  • 8
  • 80
  • 800
Grade 100 Alloy:
  • 1950 kg (4300 lb)
  • 2600 kg (5700 lb)
  • 4000 kg (8600 lb)
  • --------------------------------
  • 6800 kg (15000 lb)
  • 10300 kg (22600 lb)
  • Chain Marks -
  • 10
  • 100
  • 1000
MANILA ROPE
  • Diameter:
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL:
  • 90 kg (205 lb.)
  • 120 kg (265 lb.)
  • 150 kg (315 lb.)
  • 210 kg (465 lb.)
  • 290 kg (640 lb.)
  • 480 kg (1050 lb.)
SYNTHETIC WEBBING
  • Width
  • 45 mm (1-3/4 in)
  • 50 mm (2 in)
  • 75 mm (3 in)
  • 100 mm (4 in)
  • WLL:
  • 790 kg (1750 lb.)
  • 950 kg (2100 lb.)
  • 1360 kg (3000 lb.)
  • 1810 kg (4000 lb.)
STEEL STRAPPING
  • Width-Thickness Inch
  • 31.7 x 0.74 (1-1/4 x 0.029)
  • 31.7 x 0.79 (1-1/4 x 0.031)
  • 31.7 x 0.89 (1-1/4 x 0.035)
  • 31.7 x 1.12 (1-1/4 x 0.044)
  • 31.7 x 1.27 (1-1/4 x 0.050)
  • 31.7 x 1.5 (1-1/4 x 0.057)
  • 50.8 x 1.12 (2 x 0.044)
  • 50.8 x 1.27 (2 x 0.050)
  • WLL
  • 540 kg (1190 lb.)
  • 540 kg (1190 lb.)
  • 540 kg (1190 lb.)
  • 770 kg (1690 lb.)
  • 770 kg (1690 lb.)
  • 870 kg (1925 lb.)
  • 1200 kg(2650 lb.)
  • 1200 kg(2650 lb.)
WIRE ROPE (6 x 37, Fiber Core)
  • Diameter:
  • 7 mm (1/4 in)
  • 8 mm (5/16 in)
  • 10 mm (3/8 in)
  • 11 mm(7/16in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 22 mm (7/8 in)
  • 25 mm (1 in)
  • WLL:
  • 640 kg (1400 lb.)
  • 950 kg (2100 lb.)
  • 1360 kg (3000 lb.)
  • 1860 kg (4100 lb.)
  • 2400 kg (5300 lb.)
  • 3770 kg (8300 lb.)
  • 4940 kg(10900 lb.)
  • 7300 kg(16100 lb.)
  • 9480 kg(20900 lb.)
POLYPROPYLENE FIBER ROPE (3-STRAND AND 8-STRAND CONSTRUCTIONS)
  • Diameter:
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL:
  • 180 kg (400 lb.)
  • 240 kg (525 lb.)
  • 280 kg (625 lb.)
  • 420 kg (925 lb.)
  • 580 kg (1275 lb.)
  • 950 kg (2100 lb.)
POLYESTER FIBER ROPE (3-STRAND AND 8-STRAND CONSTRUCTIONS)
  • Diameter
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL
  • 250 kg (555 lb.)
  • 340 kg (750 lb.)
  • 440 kg (960 lb.)
  • 680 kg (1500 lb.)
  • 850 kg (1880 lb.)
  • 1500 kg (3300 lb.)
NYLON ROPE
  • Diameter:
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL:
  • 130 kg (278 lb.)
  • 190 kg (410 lb.)
  • 240 kg (525 lb.)
  • 420 kg (935 lb.)
  • 640 kg (1420 lb.)
  • 1140 kg (2520 lb.)
DOUBLE BRAIDED NYLON ROPE
  • Diameter:
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL:
  • 150 kg (336 lb.)
  • 230 kg (502 lb.)
  • 300 kg (655 lb.)
  • 510 kg (1130 lb.)
  • 830 kg (1840 lb.)
  • 1470 kg (3250 lb.)

CDL:

Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

  • Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
  • Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
  • Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
  • Any vehicle required by federal regulations to be placarded while transporting hazardous materials.

Review Questions - Click On The Picture To Begin...

Given that general cargo securement requires a WLL of at least 50% of cargo weight, how many 11mm wire rope tiedowns would be required for a load of 26,000 lbs?
  • 1
  • 4
  • 3
  • 2

Quote From The CDL Manual:

WIRE ROPE (6 x 37, Fiber Core)
  • Diameter:
  • 7 mm (1/4 in)
  • 8 mm (5/16 in)
  • 10 mm (3/8 in)
  • 11 mm(7/16in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 22 mm (7/8 in)
  • 25 mm (1 in)
  • WLL:
  • 640 kg (1400 lb.)
  • 950 kg (2100 lb.)
  • 1360 kg (3000 lb.)
  • 1860 kg (4100 lb.)
  • 2400 kg (5300 lb.)
  • 3770 kg (8300 lb.)
  • 4940 kg(10900 lb.)
  • 7300 kg(16100 lb.)
  • 9480 kg(20900 lb.)
Next
What is the total WLL of two 20mm nylon ropes and one 5/8-inch wire rope?
  • 11,140 lbs
  • 2,920 lbs
  • 1,960 lbs
  • 6,820 lbs

Quote From The CDL Manual:

WIRE ROPE (6 x 37, Fiber Core)
  • Diameter:
  • 7 mm (1/4 in)
  • 8 mm (5/16 in)
  • 10 mm (3/8 in)
  • 11 mm(7/16in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 22 mm (7/8 in)
  • 25 mm (1 in)
  • WLL:
  • 640 kg (1400 lb.)
  • 950 kg (2100 lb.)
  • 1360 kg (3000 lb.)
  • 1860 kg (4100 lb.)
  • 2400 kg (5300 lb.)
  • 3770 kg (8300 lb.)
  • 4940 kg(10900 lb.)
  • 7300 kg(16100 lb.)
  • 9480 kg(20900 lb.)
NYLON ROPE
  • Diameter:
  • 10 mm (3/8 in)
  • 11 mm (7/16 in)
  • 13 mm (1/2 in)
  • 16 mm (5/8 in)
  • 20 mm (3/4 in)
  • 25 mm (1 in)
  • WLL:
  • 130 kg (278 lb.)
  • 190 kg (410 lb.)
  • 240 kg (525 lb.)
  • 420 kg (935 lb.)
  • 640 kg (1420 lb.)
  • 1140 kg (2520 lb.)
Prev
Next
What is the WLL of a 1/2-inch Grade 70 tiedown?
  • 11,300 lbs
  • None of these
  • 9,200 lbs
  • 5,130 lbs

Quote From The CDL Manual:

Size (in diameter):
  • 7 mm (1/4 in):
  • 8 mm (5/16 in):
  • 10 mm (3/8 in):
  • 11 mm (7/16 in):
  • 13 mm (1/2 in):
  • 16 mm (5/8 in):
  • Chain Marks -
  • Example 1:
  • Example 2:
  • Example 3:
Grade 70 Transport:
  • 1430 kg (3150 lb)
  • 2130 kg (4700 lb)
  • 2990 kg (6600 lb)
  • 3970 kg (8750 lb)
  • 5130 kg (11300 lb)
  • 7170 kg (15800 lb)
  • Chain Marks -
  • 7
  • 70
  • 700
Prev
Finish
Please select an option
[2,1,1]
3
Page 150:
Cubic And Non-Cubic Boulder Securement
Page 151
Page 152:
New York State Fundamentals Of Cargo Securement

Click Anywhere To Close

Join Us!

We have an awesome set of tools that will help you understand the trucking industry and prepare for a great start to your trucking career. Not only that, but everything we offer here at TruckingTruth is 100% free - no strings attached! Sign up now and get instant access to our member's section:
High Road Training Program Logo
  • The High Road Training Program
  • The High Road Article Series
  • The Friendliest Trucker's Forum Ever!
  • Email Updates When New Articles Are Posted
Register Learn More

Apply For Paid CDL Training Through TruckingTruth

Did you know you can fill out one quick form here on TruckingTruth and apply to several companies at once for paid CDL training? Seriously! The application only takes one minute. You will speak with recruiters today. There is no obligation whatsoever. Learn more and apply here:

Apply For Paid CDL Training

About Us

TruckingTruth was founded by Brett Aquila (that's me!), a 15 year truck driving veteran, in January 2007. After 15 years on the road I wanted to help people understand the trucking industry and everything that came with the career and lifestyle of an over the road trucker. We'll help you make the right choices and prepare for a great start to your trucking career.

Read More

Becoming A Truck Driver

Becoming A Truck Driver is a dream we've all pondered at some point in our lives. We've all wondered if the adventure and challenges of life on the open road would suit us better than the ordinary day to day lives we've always known. At TruckingTruth we'll help you decide if trucking is right for you and help you get your career off to a great start.

Learn More