Building a Deer Exclusion Fence

We recently completed a bit of a different project for us, a quarter mile of agricultural fence designed for deer exclusion of a 3 acre area. We build a lot of wood and welded wire fences, but not being as familiar with the construction of these types of fences we did a lot of research on proper construction techniques for deer fencing. Here are some of the tools, techniques, and tips we learned along the way.

What we installed
-1500′ of 8′ fencing- 6′ of netting plus a smooth wire. We used 75″ tall Bekeart Solidlock Pro 20 Fixed Knot 12.5 Gauge Fence (17-75-6), combined with a high smooth tensile wire to top the fence
-5 HN corner braces with kicker posts using 2 3/8″ OD schedule 40 posts with galvanized schedule 20 cross bracing
-Corners joined using Fence Bullets instead of welding
-Wire tied to posts using Gripple T-Clips, wire joined using medium Gripple Plus connectors
-10′ T posts (1.33 weight) installed at 15′ spacing
-Gate corners built using 6×8 pressure treated crossed braced members set in concrete
-Gates: 16’x7′ Martin Farm Supply Deer Gates

Specialty Tools Used
-Dewalt Abrasive Saw to cut pipe, generator, air compressor
-High tensile wire pliers

Instructional Resources
There is a lot of good information out there from a few different sources. These were the most helpful:
-Stay Tuff Fencing Installation Manual (for wood braced systems, but easily adapted for metal corners)
-Bekaert Corner Bracing Guide
-Bekaert Instruction Videos

Building an ag fence is different from other types of fencing. There are some specialized tools that make the work much easier. These are often special order materials that you can’t find at your local Home Depot or even Tractor Supply:
-Post Pounder: While you can drive metal T-posts and pipe corners with a standard post pounder, there is an easier way. There are lots of options out on the market, but we chose to purchase a Man Saver Post Pounder to assist in driving posts. The Man Saver is a pneumatic pounder that can work with a fairly small air compressor in the field. After trying a smaller size twin tank unit, we swapped this for a larger but still mobile 8cfm Devilbiss compressor paired with a 5500 watt generator to run the Man Saver. We used 2 3/8″ schedule 40 galvanized posts for our fence corner bracing. The Man Saver lived up to its name, it was very handy in driving the posts. We were working in heavy clay soil driving corners to between 4-5′ in depth. The Man Saver did a great job in the softer layer up until about 3′ and then struggled in some harder sections where we finished the posts with a manual pounder. Given the size, weight, and cost of the Man Saver, these were acceptable trade-offs. We ended up doing all the T-posts by hand. These we 10′ posts driven to 3′ and it was easier to level and faster to install by hand than to set up and level the Man Saver 12′ in the air for each post. For shorter traditional 6′ T-posts the Man Saver would be dynamite. Two main tips in using the unit, keep it oiled (their accessory kit and in-line oiler is a must) and switch to the hard soil/ground counterweight if you encounter problems with the unit not cycling correctly in heavy ground.
-Corner connections: We knew we wanted to use pipe braces for their longevity and ease of driving, but wanted to avoid the time and expense of welding the corners. We settled on using Bullet Fence connectors based out of Oklahoma. These sleeves improve on traditional chain-link fence style cup and strap connectors by having two bolts, one connect a strap to the post and and the other to connect the sleeve around the brace pipe. This sleeve is the novel part of the design that helps prevent movement and separation common in traditional brace bands. Installation is simple but a bit time consuming using open ended wrenches. We installed 34 brace assemblies and by the end we had gotten very good at installing the bullets and very tired of open end wrench work. We used a Husky ratcheting wrench, which made the work a bit easier.  Time will tell if these braces will outperform their chain-link counterparts, but from the installation and design it should be a good brace.
-Stretcher Bars: You may be tempted to try to build a stretched wire fence without using appropriate stretcher bars. There are many YouTube videos showing novel and frankly dumb ways of stretching fence. The tension is part of the beauty of a high tensile field fence system. We used two Kencove 8′ stretcher bars combined with 3 Kencove Boundary Strainers. For short runs we did end pulls, straining the wire from the corner and then connecting with Gripple T-Clips.

Sources: Finding good Ag Fence Supplies can sometimes be a challenge. We reviewed different wire types (e.g. Redbrand vs. Bekaert), and different sources for tools and accessories. We liked Bekaert fixed knot the best in terms of quality, wire size options, gauge, and price. We used to following vendors for this Northern California project:
Kencove Fence Supply (national supplier)- best price we found on good quality tools. They shipped UPS Freight for free.