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How to Choose a Lifting Sling

More About How to Choose a Lifting Sling
If you are unsure about which lifting sling is best for your application, contact our knowledgable sales staff Monday thru Friday 7:00am - 9:00pm at 800-660-3585 and they will be glad to help you! Your call will be answered promptly.

Choose your lifting sling based on:


Choose by material

Nylon Slings Button

Nylon Slings

  • Most widely used multi-purpose sling
  • Flexibility of the fabric prevents it from locking up on a load
  • Strong, easy to handle, and relatively inexpensive
  • Unaffected by oil and grease
  • Resilient to aldehydes, ethers, and strong alkalies
  • Not suitable for use with acids or bleaching agents
  • Stretches approximately 8-10% at rated capacity
  • Should not be used in temperatures over 194°F (90°C)
Polyester Slings Button

Polyester Slings

  • Flexibility of the fabric prevents it from locking up on a load
  • Unaffected by common acids and hot bleaching agents
  • Not suitable for use around concentrated sulfuric acids or alkaline
  • Stretch approximately 3-5% at rated capacity
  • Should not be used in temperatures over 194°F (90°C)
Wire Rope Slings Button

Wire Rope Slings

  • Offers high strength and flexibility in a smaller diameter
  • 6x19 class is most widely used due to a good combination of flexibility and wear resistance
  • 6x37 class is used primarily in larger diameter wire rope; large number of strands per wire make it more flexible but lessens resistance to abrasion
  • 7x7x7 class utilize ultra-flexible and corrosion-resistant galvanized aircraft cables
Chain Slings Button

Chain Slings

  • Strong, durable, flexible; collapses for easy storage
  • Available in Grade 80 or Grade 100 lifting chain
  • Often used in high temperature or under adverse conditions that would normally destroy or wear other types of slings
  • Wide variety of hook end fittings available
  • Price can be substantially higher than the other types
  • Generally do not stretch at rated capacity (or very minimally), but can stretch 15-20% prior to failure

Choose by style

Click below to learn about and compare different styles of slings:











Choose by rating

Load Factor Chart
Leg Angle Multiplier
90° 1.000
85° 1.003
80° 1.015
75° 1.035
70° 1.064
65° 1.103
60° 1.154
55° 1.220
50° 1.305
45° 1.414
40° 1.555
35° 1.743
30° 2.000

It’s important to choose a lifting sling with a weight rating capacity strong enough to do the job you need it to do.

This calculation process is meant primarily for basket hitch applications as the angles of the legs will not be a factor in a vertical or choker hitch.

Polyester Round Slings 60 Degree Hitch Graphic 1: Determine the weight of the item you are lifting. In this example, the load is 1000 lbs.

2: Determine the angle of the sling legs to the object (noted in the diagram as 60°).

3: Find your angle in the load factor chart (in this case it is 1.154).

4: Multiply the weight of the load by the load factor (1000 x 1.154 = 1,154 lbs.)


In this example, the lifting sling weight rating you would need would be 1,154 lbs. in a basket hitch rating. Keep in mind this is a basic lift example; more complicated loads, such as one that requires multiple lifting slings for one item, should be left up to a professional for more precise information.

If you have questions or are unsure what your sling requirements are, give us a call at 800-660-3585.