CA821 Staggered Hole

CA821 Staggered Hole

CA821 Staggered Hole

The CA821 Staggered Hole Perforated Grille offsets the CA820 Straight Hole grille, creating an embellished, yet simplistic, design—without compromising free air. This pattern is a  perfect choic for commercial, high-end residential, industrial and historic renovation projects. Available in three square sizes, 1/2”, 3/8” and 1/4”, the CA821 provides free air percentages of 35, 28 and 20 percent. With a variety of size variations, materials and finishes to choose from, Coco Architectural Grilles & Metalcraft can customize your grille to ensure your desired installation and embellishment specifications.

Popular options include: Our Exclusive L-Bead and L45-Bead Frame, Countersunk Mounting Holes, Welded Stiffener Bars or Support Boot, Welded Angles/Clips for Concealed Fastening, Access Door and Beveled Edges, Exact Border Specification, and Pattern Scaling.

Free Air Percentage

Pattern Size  Free Air
1/2" 35%
3/8" 28%
1/4"  20%

The CA821 Staggered Hole Perforated Grille offsets the CA820 Straight Hole grille, creating an embellished, yet simplistic, design—without compromising free air. This pattern is a  perfect choic for commercial, high-end residential, industrial and historic renovation projects. Available in three square sizes, 1/2”, 3/8” and 1/4”, the CA821 provides free air percentages of 35, 28 and 20 percent. With a variety of size variations, materials and finishes to choose from, Coco Architectural Grilles & Metalcraft can customize your grille to ensure your desired installation and embellishment specifications.

Popular options include: Our Exclusive L-Bead and L45-Bead Frame, Countersunk Mounting Holes, Welded Stiffener Bars or Support Boot, Welded Angles/Clips for Concealed Fastening, Access Door and Beveled Edges, Exact Border Specification, and Pattern Scaling.

Free Air Percentage

Pattern Size  Free Air
1/2" 35%
3/8" 28%
1/4"  20%



Material & Finish Options:

Material : Aluminum
Finish : Satin, Mirror Polished, Primed, Powder Coated, Custom Paint Color Match, Anodized

Material : Brass
Finish : Satin, Mirror Polished, Statuary

Material : Bronze
Finish : Satin, Mirror Polished, Statuary

Material : Stainless Steel
Finish : Satin, Mirror Polished

Material : Steel
Finish : Raw, Primed, Powder Coated, Custom Paint Color Match



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Material & Finish Options:

Material : Aluminum
Finish : Satin, Mirror Polished, Primed, Powder Coated, Custom Paint Color Match, Anodized

Material : Brass
Finish : Satin, Mirror Polished, Statuary

Material : Bronze
Finish : Satin, Mirror Polished, Statuary

Material : Stainless Steel
Finish : Satin, Mirror Polished

Material : Steel
Finish : Raw, Primed, Powder Coated, Custom Paint Color Match

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