READING NOTES
Look beyond the open area percentage
The ligament is the metal remaining between neighboring holes. Two patterns with similar overall open area can place that metal differently around an edge or attachment. Show the hole dimensions, pitch and arrangement so the narrowest remaining strips are visible in the drawing. Include the relationship between the outermost holes and the panel edge, where the pattern is interrupted.
Examine concentrated forces
Mounting screws, clamps and local supports apply force through specific regions of the panel. Identify these regions before maximizing the perforated field. Consider whether an unperforated attachment zone or a revised pattern should be reviewed by the designer. For load carrying panels, have the responsible engineer evaluate the actual perforated geometry, material, thickness, supports and connections together; open area does not supply a strength rating.
DECISION TABLE
Confirm the parameters against the project
Start with the application, then carry the required checks into the enquiry.Swipe horizontally on mobile to view the full table| Decision area | What to assess | Confirm in the enquiry |
|---|---|---|
| Application | Define the actual application | Environment, function and installation |
| Specification | Confirm product and dimensions | Material, specification, quantity and tolerance |
| Delivery | Align packing and destination | Timing, packing, drawings or photos |
Include forming and service conditions
Ask the fabricator to review narrow strips near bends and profile changes. Inspect a representative formed sample for damaged hole edges or distorted attachment areas. Document the accepted geometry rather than substituting a generic minimum ligament rule. Changes to hole size or pitch should prompt a fresh review of the remaining material, even when the outside dimensions stay the same.
QUOTE CHECKLIST
Prepare for a quote
- Application and safety level
- Total run and segments
- Fence height and opening
- Wire and finish
- Posts, spacing and footing
- Gates, corners and terrain
- Quantity, packing and destination
- Drawings, photos and lead time