Originally introduced in the 2006 version of John Long’s Climbing Anchors book the “Quad” took a few years to start being adapted by both guides and recreational climbers alike. Now, ten years later, it has really started to gain widespread popularity for the simplified way it can create ERNEST* anchors, especially when building anchors on two solid pieces of protection (modern bolts, ice screws in solid ice). This past year I’ve been using a super light and rack-able version that I’ve been referring to as a “Mini-Quad”.
*ERNEST- Equalized, Redundant, No (limited) Extension, Timely
Building a Mini-Quad
To build a Mini-Quad start with a 120 cm Black Diamond Dynex Sewn Runner. These are often called “double length” slings as they are twice as long as your standard “shoulder length” sling. Double the runner and get the stitching positioned towards the end before tying the first of two over-hand knots.
The second overhand can be positioned about two inches from the other end of the doubled runner. When optimized the resulting Mini-Quad is about 16 inches long. Once you add two carabiners to it (I use Petzl S Ange Wire Gate Carabiners) your Mini-Quad is ready to be racked or deployed for multiple uses.
Benefits of Dynex for building a Quad
A 120 cm 10mm ultralight Dynex runner weighs 30% less than an nylon runner but more importantly it does not absorb water like nylon making it great for ice climbing and getting caught in the rain on a long alpine route. A nylon double length is also too bulky to get the required over-hand knots to form a use-able size of Mini- Quad. This Dynex runner is also 1/4 of the weight of an 18 foot 6mm cordelette and racks like a quick-draw.
Limitation of using Dynex for building a Quad
It should be noted that due to the slippery nature of Dynex the overhand knots used in the construction of the Mini-Quad will tighten significantly over a few days of use. They can become difficult to impossible to untie. I’ve decided to leave these “built” for the entirely of the material life span. For those concerned over the potential reduction in material strength due to the overhand knot I offer the following justification. Conservative testing indicates an overhand can reduce the material strength up to 40%. These runners are tested to 22 Kn, or about 5000 pounds. The most conservative estimates leave 3000 pounds of strength in the material. Given the redundancy of the Quad construction I find this a non-issue. As with all knots and material used in climbing one should inspect them at every use for damage, excessive abrasion, etc.
Uses of the Mini-Quad
This is one versatile tool and I carry two on my harness. The obvious use is in anchor construction. When arriving at a belay station with two modern bolts it takes less than 10 seconds to construct an ERNEST anchor with the Mini-Quad. For sport climbing this speed and simplicity should encourage climbers to choose this method over the popular practice of just using two quickdraws, especially if your group will be top-roping the route for awhile.
In building traditional anchors I still regularly deploy the Mini-Quad. Most of us build gear anchors from 3-4 pieces of protection. The most common method we see people deploy is the classic cordelette-method. While this creates an solid ERNEST anchor it’s downside is when considering the “T” in ERNEST… Timely. The cordelette takes quite a bit of time to deploy and more time to break down and rack when the second is on belay from above. It also requires a lot of material when we can often achieve an ERNEST anchor with little more than a Mini-Quad and perhaps one 2 foot runner. The key here is trying to arrange 2 or more of the pieces of our anchor so they can “be treated” as one. Here are some examples to illustrate this concept.
Before I move on to other uses of the Mini-Quad I feel the need for a disclaimer here. It’s well known that when someone posts pictures of what they feel are solid anchors they open themselves up to scrutiny. I’ll be happy to discuss these more in the comments below as long as the discussion is civil.
Other uses of the Mini-Quad
The Mini-Quad is an excellent extension for your rappel device should you choose to extend (common practice these days). Because I have two dedicated carabiners for my Mini-Quads the easiest way to use it in this configuration is to attach it to your belay loop with these two carabiners, gates reversed and opposed, then install your rappel device on the far end. This is a very strong redundant connection that does not require you to fish webbing through the tie in point of your harness (not always easy while ice climbing with cold hands). Not looping or girth-hitching a sling through your harness will also reduce wear over time. For the rappel device connection I highly prefer the Black Diamond Magnetron Gridlock, which uses one of the best designs for an “auto-locking” carabiner.
I also occasionally use a Mini-Quad as a regular runner while leading a wandering pitch. It doesn’t weigh much more than an alpine draw and functions as a very redundant 15 inch runner.
With proper application the Mini-Quad has the potential to streamline your anchor building in all facets of climbing. Sport climbers should embrace the added redundancy and better equalization than the dual quickdraw method so embraced today. Traditional climbers will notice an increase in speed for both construction and de-construction of traditional anchors especially on longer routes. Ice climbers will continue to embrace the benefits of the Quad but perhaps now with a lighter more rack-able solution. Guides and trip leaders who often have 3 people in a team will continue to utilize this option and perhaps carry less heavy/bulky cordelette material. If you’ve been using the Quad already check out this “Mini-Quad” version… I think you’ll like it!
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Various climbing books all listed here.
Disclaimer: Climbing is dangerous. You can be seriously injured or die. There is no substitute for personal instruction. Seek qualified instruction before attempting anything expressed above. There are no warranties expressed or implied that this post contains accurate information. You are solely responsible for your safety in the mountains.