How to Check Whether Attachment Loop Spacing Matches the Approved Drawing

Attachment loops are small components, but they play a major role in how a fishing net panel is installed and loaded.

If loop spacing is inconsistent, the panel may develop:

• Uneven tension

• Local slack

• Corner distortion

• Irregular border loading

• Difficult installation

The key principle is:

Attachment loop spacing should be checked against the approved drawing, not judged only by visual appearance.

1. Start With the Approved Layout

Before inspection, confirm:

• Number of loops

• Loop positions

• Spacing between loops

• Distance from corners

• Distance from seams

The drawing should define the intended attachment layout clearly.

Without this reference, it is difficult to know whether the loop pattern is correct.

2. Count the Loops First

A panel may have the correct overall length but still contain the wrong number of attachment loops.

Check:

• Total loop count

• Loops per side

• Special corner loops

• Additional lifting or reinforcement loops

A missing or extra loop changes the spacing pattern across the whole border.

3. Measure From Fixed Reference Points

Do not measure loop spacing randomly.

Use consistent points such as:

• Loop center to loop center

• Corner to first loop center

• Seam end to nearest loop center

This makes comparison between panels more reliable.

4. Compare Spacing Across the Full Border

One section may be correct while another drifts.

Measure from:

• Beginning

• Middle

• End

of each border.

Look for:

• Gradual spacing change

• One unusually short interval

• One unusually long interval

• Clustering near corners

5. Check Opposite Sides

For rectangular panels, compare:

• Left vs right

• Top vs bottom

If opposite borders are intended to match, the loop layout should be comparable.

Large differences may create installation imbalance.

6. Inspect Corner Spacing Carefully

The first loop near a corner is especially important.

If it is too close or too far, the corner may become:

• Overloaded

• Pulled inward

• Difficult to align

Corner spacing should match the approved design rather than being adjusted by eye.

7. Loop Length Should Be Checked Together With Spacing

Correct spacing does not guarantee correct load sharing.

If one loop is much shorter than the others, it may take load earlier.

Therefore, inspect:

• Loop spacing

• Effective loop length

• Loop orientation

together.

8. Check Whether Loops Are Installed in the Correct Direction

A loop can be in the correct position but twisted or facing the wrong direction.

Look for:

• Twisted loops

• Rotated knots

• Inconsistent attachment direction

These issues can affect installation and hardware connection.

9. Apply Light Controlled Tension

Under light tension, observe whether the loops engage evenly.

Warning signs include:

• One loop becomes tight much earlier

• Neighboring loops remain slack

• Border shape changes sharply near one loop

• Mesh gathers between attachment points

This can reveal hidden spacing or length problems.

10. Record Actual Values, Not Only “PASS”

A useful inspection record should show:

• Loop number

• Actual spacing

• Actual length

• Position

• Tolerance

For example:

Loop 1–2: 500 mm
Loop 2–3: 498 mm
Loop 3–4: 503 mm

This is more useful than simply writing:

Attachment loops: PASS

Practical Attachment Loop Checklist

Check:

• Total loop count

• Spacing between loops

• Corner-to-first-loop distance

• Loop length

• Loop orientation

• Knot construction

• Opposite-side comparison

• Approved drawing

Investigate further when:

• One spacing interval differs strongly

• Loops cluster near one end

• Corner spacing is inconsistent

• One loop is much shorter

• Some loops remain slack under light tension

Why Loop Spacing Matters

Attachment loops transfer load between:

Cage Hardware → Loops → Border → Main Net

If spacing is uneven, some loops may carry more load than others.

This can lead to:

• Border distortion

• Local mesh stress

• Uneven installation

• Higher wear near selected attachment points

The loop layout should therefore be treated as part of the structural design.

Conclusion: Correct Loop Position Is Part of Net Geometry

Attachment loops should not be placed by approximation.

The key questions are:

• Is the loop count correct?

• Is spacing consistent?

• Are corner positions correct?

• Are loop lengths comparable?

• Does the layout match the approved drawing?

The key principle is:

Correct Attachment Loop Spacing Helps Distribute Load Evenly Across the Border and Reduces Installation Imbalance.

At PL Fishery, we manufacture PE fishing nets, fish cage panels, aquaculture netting, reinforced borders, attachment loops, custom seams, repair mesh, repair twine, marine ropes, chicken nets, and customized net products.

For custom or bulk fishing net orders, send PL Fishery your panel dimensions, mesh size and measurement method, twine specification, border design, loop count, loop spacing, loop length, attachment drawing, quantity, and inspection requirements so our factory can prepare a clearer production and QC standard.https://plfishery.com/