Square Hole Perforated Metal

Description
Perforated with a square hole can provide a greater percent open area than round holes. It may be considered an attractive alternative to round holes in some applications. It is versatile, economical and available in a variety of materials, gauges, and hole sizes. In addition, square hole perforations allow a high open area for applications such as ventilation and guards.
Square holes are ideal for applications where visibility and through-put are priorities but strength isn't essential, such as guards and decorative covers.  These patterns provide a higher percent open area but are lower in strength compared to round hole patterns.  Square hole patterns are available with staggered and straight centers.
Materials:
The materials of perforated square hole metals are mild steel, galvanized steel, stainless steel and so on.
Open Area Calculations
* Staggered Square Holes
* Straight Square
Features
* Higher ranges of open area than rounds
* Variety of gauges and materials
* Diversity of patterns
* High strength-to-weight ratio
* Available in lightweight materials
* Available in corrosion resistant materials
* Suitable for decorative applications
* Available in heat-treated screen plate
Specification

Opening (mm)	Center type(mm)	Thickness of sheet(mm) min-max	Size (mm)	Stainless Steel	Iron	Aluminium
3×3	≥4	0.4-2.5	11220×2440	√	√	√
5×5	≥6	0.4-3	1220×2440	√	√	√
10×10	≥12	0.6-4	1220×2440	√	√	√
12×12	≥14	0.6-5	1220×2440	√	√	√
15×15	≥17	0.8-5	1220×2440	√	√	√
17×17	≥19	0.8-5	1220×2440	√	√	√
18×18	≥20	0.8-5	1220×2440	√	√	√
20×20	≥22	0.8-5	1220×2440	√	√	√
22×22	≥24	0.8-5	1220×2440	√	√	√
Above specifications for reference only,specifications can be customized according to user needs.

Application
Square hole perforated metals can be supplied with parallel rows, diagonal rows or staggered rows. In addition, square hole perforations allow a high open area for applications such as ventilation and guards. Some examples of applications for perforated sheets with square hole are in the following:
* Ventilation and safety guards for the machine building industry
* Ventilation and security covers for computer server chassis
* Screens for defusing and sun protection
* Balconies and balustrades