7/8" Mammoth Rigging Line

The 7/8 Mammoth rigging line is the heaviest size in the line, built for crews that block down big trunk wood and lower heavy tops. It is more rope than most daily jobs need, which is exactly why it earns a spot on the truck for the big removals.

When to reach for 7/8 inch

Most crews rig with 1/2 or 5/8 inch line and step up as the wood gets bigger. A 7/8 inch line is for the top of that range: long blocked trunk sections, heavy leaders and big tops where the shock load at the catch is serious. The larger rope gives you more strength margin and holds up better to the wraps on a lowering device.

The cost is weight and bulk. A long hank of 7/8 is a real carry, so many crews keep it for the jobs that need it and run smaller line the rest of the time. Your block, sling and porta-wrap or bollard must all be rated for a 7/8 inch rope. Compare sizes in our rigging rope section.

Inspection and limits

Before and after each job, run the line through your hands. Look for cut or pulled strands, glazed or melted sections, flat spots and core damage. Keep it dry, out of the sun and away from fuel and bar oil.

Rigging forces are dynamic and can be several times the weight of the piece. Work from the maker's rated strength, allow for knots and bends, retire rope after a severe shock load and keep rigging to trained crews working under ANSI Z133.