The four key parameters for diamond expanded aluminum mesh are:
LWD (Long Way of Diamond)
SWD (Short Way of Diamond)
Strand Width
Thickness
Understanding these terms helps customers select the correct mesh pattern, strength, and visual effect for their projects.
1. What is LWD (Long Way of Diamond)?
LWD stands for Long Way of Diamond.
It refers to the longest diagonal measurement of a diamond-shaped mesh opening, measured from one corner of the diamond to the opposite corner.
LWD is one of the most important dimensions used to describe expanded metal mesh patterns.
Example
Aluminum Expanded Mesh
LWD 100mm × SWD 50mm × Strand Width 8mm × Thickness 3mm
This means
The long diamond opening is 100mm
The short diamond opening is 50mm
The aluminum strand width is 8mm
The original aluminum sheet thickness is 3mm
A larger LWD creates a more open and decorative appearance, while a smaller LWD produces a denser mesh structure.
2. What is SWD (Short Way of Diamond)?
SWD stands for Short Way of Diamond.
It represents the shorter diagonal dimension of the diamond-shaped opening.
The combination of LWD and SWD determines the overall appearance, transparency, and ventilation performance of the expanded aluminum mesh.
Common diamond opening sizes include
25mm × 50mm
30mm × 60mm
50mm × 100mm
60mm × 120mm
100mm × 200mm
For architectural applications
Smaller SWD provides higher privacy and stronger visual density.
Larger SWD provides better airflow, transparency, and decorative effects.
3. What is Strand Width?
Strand Width refers to the width of the aluminum strip between two adjacent openings.
It is the solid aluminum section that forms the structure of the expanded mesh.
For example
Strand Width: 8mm
means the aluminum rib connecting the diamond openings is 8mm wide.
The strand width directly affects
Larger Strand Width
Higher strength
Better impact resistance
More solid appearance
Improved structural performance
Smaller Strand Width
Higher transparency
Lighter appearance
Better ventilation
More decorative effect
Common strand widths
2.5mm
3mm
5mm
8mm
10mm
15mm
4. What is Thickness?
Thickness refers to the original thickness of the aluminum sheet before the expansion process.
During manufacturing, the aluminum sheet is simultaneously cut and stretched to create the diamond openings while maintaining the original material thickness.
