Q-Knot fixed knot fence: a high tensile knotted fence whose knot cannot slip

Q-Knot keeps animals out: nilgai, wild boar, deer and stray cattle. If the threat is people climbing or cutting in, see ZS-Knot™ (Anti Climb).

• Farms and plantations losing crops to animals. See farm fencing.
• Solar parks, where the fence must last across long perimeters. See solar plant fencing.
• Highway, railway and utility corridors: suitable for corridor fencing, built to your tender specification and drawing. See highway and railway fencing.
• Plots, estates, forests and wildlife boundaries. See plot and farmhouse fencing and forest and wildlife fencing.

A fixed knot fence locks every crossing of a vertical and a horizontal wire with a separate wrapped wire, so the wires cannot slide along each other. A Q-Knot crossing is a true fixed knot, not a woven or hinged joint, so the grid keeps its shape under pressure.

1. The knot cannot slip. It is formed from a separate length of wire wrapped around each crossing, not woven or hinged, so the grid keeps its shape under pressure.
2. The line wires act as springs. Each horizontal wire is deep-crimped between the stays, so the fence absorbs an animal or vehicle impact and returns to shape rather than deforming.
3. The fabric carries its own tension. That rigidity is what lets posts stand 5 to 6 m apart instead of 2.5 to 3 m.

Abroad, a fixed knot fence is sold as deer, game, cattle and horse fence, by the animal it keeps in or out. In India the same kind of fence is usually called a fixed knot fence or a knotted fence. SIMO Securon’s is the Q-Knot: a graduated grid, closest at the bottom, at 5, 6 or 8 ft. For deer on a farm, see how to protect crops from nilgai and wild boar.

A fixed knot fence has a locked knot at every crossing and high-tensile wire; conventional galvanised chain link (jali) is a woven diamond of lower-tensile wire that is easier to cut and climb.

Chain link costs less upfront and suits temporary or low-cost boundaries; SIMO Securon supplies it too, made to order as QvikFixrr chain link. For the full comparison, read knotted fence vs chain link.

Height stops nilgai and cattle, and tight wires at ground level stop wild boar. SIMO Securon suggests:

Every farm design uses the Q-Knot graduated grid. These are starting points for discussion, not for construction: every job is built to the drawing agreed for it. Read more in how to protect crops from nilgai and wild boar and, for cattle, the cattle fencing guide.

Choose the graduated grid: it is the catalogue grid, with the wires closest together at the bottom, where animals push and small animals try to get through, and further apart at the top, where the load is lower.

Q-Knot is made in all three SIMO Securon grades: Alpha, rated for 35 years or more; Zeta Nova, rated for 20 years; and Pi, the affordable grade, rated for 10 years. The grade sets the coating, and so the rated life, and the strength of the wire.

Because the knots cannot slip and the crimped high-tensile line wires hold their own tension, Q-Knot posts stand 5 to 6 m apart, against 2.5 to 3 metres for conventional galvanised chain link. On a 30 m run at 5 metres that is 7 posts instead of 13, and installation runs about 40 percent faster.

The fencing cost estimator works out the posts and rolls for your boundary.

A Q-Knot fence is only as strong as its weakest connection. Fix it with QvikFixrr clips and fabric locks to posts that are free of rust, brace every terminal and corner post in concrete, and tension it only once the concrete has cured. Post sizes and foundation depths are on the fence posts and fittings page. For most sites SIMO Securon recommends supply and install by its trained crews.