Build your own ranking
Published rankings can only be general. Your property, your design and your products are specific. This guide gives a repeatable order of questions you can ask about any material or product so you can rank them yourself. It is meant for evaluating what you plan to install on your own property, in the spirit of risk reduction. No outcome of this process guarantees safety, and the goal is to make unwanted entry slower, noisier and more visible, not impossible.
Step 1: Decide what you are protecting against
Different goals call for different priorities. Keeping out casual trespassers and wandering animals is a lower bar than discouraging someone who actively targets the property. Most residential concerns involve opportunists who want a quick, quiet route. Decide whether you worry most about climbing over, cutting through, lifting off, or forcing the gate. That determines how to weigh the next steps.
Step 2: Rate resistance to cutting
Ask how thick and how dense the material is. Solid bars and thick-walled tubing take far longer to cut than thin hollow sections or wire. Welded steel and masonry rate highest, then iron-style bars, then aluminum, then wood, then vinyl, composite and mesh. Give each material a rating on a simple scale, say 1 to 5. Note that how noisy the cutting is also counts, as noise draws attention.
Step 3: Rate resistance to climbing
Look at the surface and the shape. Smooth, vertical, tall and closely spaced is hard to climb. Horizontal rails, mesh, diagonal lattice and outside crossbars all give footholds. Consider the surroundings: nearby trees, bins, sheds and neighboring structures can undo a good design. Rate the material in its actual layout, not on its own. If you want to learn more, our note on climb-resistant fencing goes into design.
Step 4: Rate resistance to prying and breaking
Imagine a pry bar, a kick or a shove. Can a board be levered off? Can a panel be pushed out of its post? Are fasteners hidden or exposed on the outside? Steel welded panels and masonry rate high; slotted vinyl and screw-on boards from the outside rate low. Rate how the parts are joined as much as the parts themselves.
Step 5: Rate the hardware
Hardware is where many fences fail the test. Look at three items.
- Hinges. Can the gate be lifted off its pins? Are the hinges and posts sized for the gate’s weight?
- Latch and lock. Is the lock shielded? Is the hasp attached with through-bolts or tamper-resistant fasteners? A gate lock or a drop rod adds security where double gates are used.
- Fasteners. Are visible screw heads on the outside, and do the screws go into solid material?
Give the hardware its own rating, since it caps the security of the whole system. Knowing the main gate hinge types and how gate hasps work makes it much easier to rate this step.
Step 6: Check the posts and footings
Even a very strong panel is limited by what holds it in the ground. Check post size, depth and footing type for the design. Weak posts can be rocked loose or pulled out. Verify what the local frost line and soil conditions require.
Step 7: Combine the ratings
Take the lowest of your cut, climb, pry and hardware ratings as a rough indicator. A chain is as strong as its weakest link, and a fence with great cutting resistance but a poor latch is a poor-security fence overall. Averaging can mislead because it hides a glaring weakness. Many people find it useful to record both the lowest score and the average.
Step 8: Add visibility and detection
Materials are only part of deterrence. Open designs allow sightlines that discourage hiding, while solid designs hide activity from the street and from you. Think about lighting, cameras and alarms alongside the material, since these provide detection when physical resistance is overcome. Break-in prevention generally works through several layers together.
A worked example, with invented ratings
Suppose Fence A scores 4 for cutting, 4 for climbing, 4 for prying and 2 for hardware, and Fence B scores 3, 3, 3 and 4. Averages are 3.5 for A and 3.25 for B, so A looks better on average. But A’s lowest score is 2, while B’s is 3. Upgrading A’s hardware would lift its lowest score to 4, which is the cheapest improvement available. The ratings here are invented to show the method; your own ratings will differ.
Cautions
Evaluate only what you own or are permitted to alter, and never test the security of other people’s property. Check local codes, height limits, permits and homeowner association rules before building. Automatic gates need proper safety features and professional installation.