Product Overview
Round hole perforated metal is our most popular perforated product. Standard hole sizes range from .020” to 1” diameter. For specialty applications, there are additional options for larger hole sizes.
Materials in our inventory include steel, aluminum, stainless steel, and a variety of specialty alloys. Standard material thickness ranges from 26 gauge to 1/2” thick.
The versatile round hole patterns are ideal for applications including architectural accents, industrial screening products, and filtration solutions.
Round Hole Perforated Metal Details
Round Hole Perforated Patterns
Round hole perforated materials are available in three unique patterns: 60° Staggered, 45° Staggered, and Straight Line. With varying amounts of open area, these hole patterns provide specifiers with flexibility in function as well as appearance.
If the products illustrated in this section do not address the specific needs of your application, please contact our sales team. We will gladly assist in the development of a custom perforated pattern tailored to your exact requirement.
Round Hole Pattern Alignment
Our inventory is produced with the holes aligned in Standard Flow. This designates the straight rows of the holes are parallel to the length of the sheet.
Optionally, products may be special ordered Reverse Flow, where the straight rows of the holes are parallel to the width of the sheet.
Round Hole End Margins
Finished End Margin: The round perforation pattern is uniform in appearance and complete at all edges of the sheet.
Unfinished End Margin: Round perforations are not solid in appearance at the edge of the sheet.
Blank Margin: Round perforations run completely to the width edges of the panel with some perforations remaining open at the sheet’s edge.
Perforated Metal Sizes & Options
Round Hole Perforated Metal Pattern Illustrations
Options for Fabrication & Finishes
Fabrication
Our fabrication teams are highly trained and ready to shear, form, roll, frame, or customize any perforated metal panel order. These services can be provided to a single sheet, multiple panels, or high- volume OEM requirements. Let our many decades of experience serve you and your needs.
Infill Framing
Perforated metal is often a preferred choice for handrail infill panels. Properly framed with “U”-edging, rolled angle, “double-bar” sandwiched flat bars, or other metal sections, these shop fabricated panels are typically provided with mounting brackets for quick installation into the rail system.
At Grating Pacific, our design and fabrication teams are trained to closely focus on proper alignment of the hole patterns. This attention assures that your panels will maintain visual symmetry on continuous level runs or inclined stairways.
Sunshades & Canopies
Overhead installation of perforated metal adds a functional and aesthetic feature to many projects. Sun protection is often provided while the free circulation of air is maintained.
Standard perforated products are commonly specified for an economical solution. If the perforated panel is intended to serve as a strategic element of your structure, consider our custom perforated metals with enhanced finishing.
Finishes
Perforated metal is available in a variety of metals: carbon steel, stainless steel, aluminum, and specialty alloys. All products are lightly oiled during manufacture and stocked mill finish, without cleaning. If finish coatings will be applied, the metal should be cleaned prior to coating.
Carbon steel perforated metal can easily be painted or galvanized to enhance corrosion resistance. Aluminum products can be anodized, or epoxy coated. Stainless steel products can be electroplated to provide for a bright finish or abrasive blasted to provide a uniform matte finish. Other specialty alloys have finish options related to the type of alloy.
In Stock U-Edging
U-Edging is available from stock in 10′-0 or 12’-0 lengths of carbon steel, aluminum, or stainless steel. Alloy dependent, openings range from 1/16” to 1/2” with 1” overall width. Custom sizes are available on special order.
Stock carbon steel U-Edging includes:
- Part No. U-063-S, 1/16” opening
- Part No. U-125-S, 1/8” opening
- Part No. U-188-S, 3/16” opening
- Part No. U-250-S, 1/4” opening
- Part No. U-375-S, 3/8” opening
- Part No. U-500-S, 1/2” opening
