Built for weight, speed, and a flock that moves as one
Suffolks are big-framed sheep with black faces and legs and lambs that grow faster than almost any other breed's. Two features of that biology drive the fence design. First, sheer mass: a startled Suffolk flock hitting a fence together applies a load that light mesh and widely spaced posts will not hold a second time. Second, those lambs are up, nursing, and testing the world almost immediately, and a lamb that slips a fence in its first days is separated from the ewe whose voice it is still learning.
Woven-wire field fencing on closely set, well-braced posts is the foundation. Rails and plain strand fencing leave exactly the walk-through and step-through gaps that dogs and coyotes use, and a heavy ewe can part strands a lighter breed would respect.
The lower mesh and the ground line
Size the fence from the lamb up. Openings in the lower part of the woven wire should be small enough that a young lamb cannot push its head through and hang itself in a panic, nor work its shoulders through after it. The bottom wire must follow the terrain rather than chord across hollows — sheep ground is rarely level, and every bridged dip is an invitation to a digging predator and an exit for a wandering lamb.
Where a particular hollow or gateway keeps defeating the bottom wire, a buried mesh skirt or a line of heavy stone along the outside of the fence line is a permanent fix worth doing once, rather than a hole to re-fill monthly.
The electric offset, and what it is really for
Woven wire alone holds sheep; it does not discourage a determined dog, which will dig, climb, and worry the fence for the excitement of the chase even when it never gets in — and a chased Suffolk flock can injure itself against good fencing. The offset electric strand on the outside of the posts is the discouragement. Placed out from the mesh at about nose height for the predator you have, it ensures the first thing a dog or coyote touches at your fence is the strand, and the encounter usually ends there.
Keep the strand alive and visible: clear the grass the flock pushes against it, repair breaks promptly, and remember that a strand switched off for a weekend of maintenance teaches the local dogs that the fence is negotiable.
Lambing ground, night ground, and repairs
Where predator pressure is real, lamb on the tightest ground you have — a small paddock near the buildings with your best mesh, your soundest gates, and lighting you can reach quickly — rather than at the far end of the largest field. Suffolk ewes lamb readily and lambs are vigorous, but a ewe with twins in an open field at night is defending the indefensible. A secure night pen for the lambing weeks is the same logic extended.
Walk the whole line at lambing and monthly otherwise, testing tension, reading the ground outside the wire for dig starts and tracks, and checking gate latches with the same scepticism the flock applies. A sheep with bite wounds — look at legs, throat, and hindquarters — needs a veterinarian promptly, as flock animals mask pain until they are in real trouble.
Lambing dates, pen assignments, and the standing list of fence repairs all sit naturally together in KinsLe Family Sharing, where everyone working the Suffolks sees the same current version.