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Rigging & Lifting

5 guides

Sling angles, load weights, lift planning.

All Concrete & Masonry Paving & Earthwork Rigging & Lifting OSHA Compliance Safety Programs & Training Health & Ergonomics

Rigging & Lifting · 7 min read

D/d Ratio Explained: What Bending Costs a Sling

Bend diameter divided by rope diameter. The minimums that are law, the ratio your rated load was calculated from, and why a bigger sling makes it worse.

Rigging & Lifting · 8 min read

Sling Hitch Types: Vertical, Choker and Basket

One sling, three ratings. How the hitch you tie changes the capacity, and the two conditions a basket hitch has to meet before it is worth double.

Rigging & Lifting · 6 min read

Forklift Load Center Explained: Why a Long Load Costs You Capacity

The load-moment method of 1910.178 Appendix A, a derating table, and what the arithmetic does not cover.

Rigging & Lifting · 6 min read

How to Estimate the Weight of a Load Before You Lift It

Volume times density, the density table, three worked examples, and the weights people forget to add.

Rigging & Lifting · 4 min readPopular

Sling Angles Explained: Why 30° Doubles the Load

The angle factor table, what it does to leg tension, and why 30° is the floor — not a target.