Perforated Stainless Steel Sheet Metal

Here's a breakdown of Perforated Stainless Steel Sheet Metal in general — including types, features, uses, and things to consider when choosing one:

What Is It?

Perforated stainless steel sheet metal is flat sheet steel that's been punched or stamped with a pattern of holes, slots, or other shapes. It combines the durability of stainless steel with customizable airflow, light passage, and design.

Key Features

Material Types:

304 SS – Most common, corrosion-resistant, good for general use.

316 SS – Higher corrosion resistance, ideal for marine/chemical exposure.

Perforation Patterns:

Round hole (most common)

Square hole

Slotted (oblong)

Decorative patterns (hex, custom, etc.)

Hole Size & Spacing:

Can range from tiny pinholes (for filters/speakers) to large holes (for ventilation/grilles).

Usually defined by:

Hole Diameter (e.g., 1/8", 1/4", etc.)

Center-to-Center Spacing (called pitch)

Open Area % (how much of the sheet is holes)

Sheet Thickness (Gauge):

Common gauges: 22 ga (~0.03"), 20 ga, 16 ga, 14 ga, up to 1/4" thick or more.

Thicker = stronger but heavier.

Things to Consider When Buying

Material Grade (304 vs. 316) – Based on your environment (corrosive or not).

Hole Pattern – Round is standard, but aesthetics and function matter.

Hole Size / Spacing / Open Area – Impacts airflow, strength, and visibility.

Sheet Size – Typically 4'x8', 4'x10', or custom sizes.

Thickness (Gauge) – Determine based on strength needed.