Gap Arborist Supply
1/2 in Whoopie Sling
Adjustable synthetic sling for setting rigging anchors fast.
Typical $89
Adjustable Slings: Whoopie Slings for Rigging
An adjustable sling, usually a whoopie sling, lets you set the length in seconds so one sling fits many stem sizes. Arborists use them to hang blocks and choke pieces.
20products2brands
Gap Arborist Supply
3/4" Whoopie Sling
An adjustable 3/4 in rope sling for anchoring heavy rigging blocks.
Typical $85
Gap Arborist Supply
5/8" Whoopie Sling
An adjustable 5/8 in rope sling for hanging blocks on any trunk size.
Typical $75
Gap Arborist Supply
1/2 in. Whoopie Sling with Medium Ring
An adjustable 1/2 in. sling with a ring for quick block and redirect anchors.
Typical $95
Gap Arborist Supply
1/2 in. Soft Anchor Rigging Sling for Port-a-Wrap, 8 ft
A 1/2 in. soft sling for anchoring lowering devices and blocks without hardware.
Typical $60
Gap Arborist Supply
3/4 in. Soft Anchor Rigging Sling for Port-a-Wrap
A 3/4 in. soft sling for anchoring lowering devices and blocks without hardware.
Typical $95
Gap Arborist Supply
3/4 in. Whoopie Ring Sling with XL Ring
An adjustable whoopie sling with an XL ring for a smooth rigging point.
Typical $130
Gap Arborist Supply
3/8 in. Loopie Sling, 2-4 ft
An adjustable 3/8 in. loop sling that sets from about 2 to 4 ft.
Typical $40
Gap Arborist Supply
5/8 in. Loopie Sling, 2-8 ft
An adjustable 5/8 in. loop sling that sets from about 2 to 8 ft.
Typical $75
Gap Arborist Supply
5/8 in. Soft Anchor Rigging Sling
A 5/8 in. soft sling for anchoring lowering devices and blocks without hardware.
Typical $85
Gap Arborist Supply
Double Head Whoopie Ring Sling with 2 XL Rings
An adjustable sling with two XL rings for redirects and friction rigging.
Typical $190
Gap Arborist Supply
Double Ring 3/4 in. Soft Anchor Rigging Sling with 2 XL Rings
A 3/4 in. soft anchor sling with two XL rings for friction rigging points.
Typical $180
Gap Arborist Supply
Double Ring 7/8 in. Soft Anchor Rigging Sling with 2 XL Rings
A 7/8 in. soft anchor sling with two XL rings for friction rigging points.
Typical $220
Gap Arborist Supply
7/8 in T-Rex Anchor Rigging Sling with XL Ring
Heavy 7/8 in adjustable anchor sling with an oversized ring for big rigging points.
Typical $199
Rock Exotica
Omni-Block 2.6 with Loopie Sling
Swiveling Omni-Block 2.6 pulley with an adjustable loopie sling for quick rigging points.
Typical $219
Gap Arborist Supply
1 in Whoopie Sling
An adjustable rigging sling sized for big wood and heavy rigging points.
Typical $119
Gap Arborist Supply
1/2" Loopie Sling (2'–4')
Adjustable 2–4 ft rope sling for setting blocks and pulleys on smaller stems.
Typical $45
Gap Arborist Supply
3/4" Soft Anchor Rigging Sling
Heavy 3/4 in adjustable rope sling for anchoring blocks and lowering devices.
Typical $80
Gap Arborist Supply
1/2" Soft Anchor Ring Sling with Medium Ring
An adjustable rope sling with a medium ring for quick rigging points.
Typical $89
Gap Arborist Supply
1/2" x 4' Tenex Soft Anchor Rigging Sling
A 4 foot Tenex soft anchor sling for rigging points and anchors.
Typical $59
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Buying guide
Using whoopie slings
A whoopie sling has a fixed eye on one end and a buried, adjustable section that locks under load. Pull it snug around the stem and the bury grips. Use the size and strength suited to the load and the block.
Do not adjust a whoopie under load, keep the adjustable section within its marked range, and inspect the bury and eyes for wear before every job.
Sizes and uses
Smaller diameters, such as 1/2 inch, suit light rigging and redirects. Larger sizes such as 5/8 and 3/4 inch handle heavier wood and hold blocks for bigger removals. Pick the size that matches your block and loads, and carry a couple so you can set one for the block and another for the piece.
Whoopies are also handy for friction devices mounted on the trunk and for anchoring speed lines. Keep them clean and away from the saw, and retire any sling that shows a cut, heavy glazing or a damaged bury.
Common questions
Can a whoopie sling slip?
When used within its range and loaded correctly it locks. Damaged or overextended slings can fail, so inspect them.
Free toolRigging Load CalculatorEstimate the weight of a log by species and size, see the shock load of a drop, and size your rope and sling with a working-load margin.