ACO KlassikDrain Type 411D Perforated Galvanized Steel Grate (ADA) - 1 Meter

Product Details: ACO KlassikDrain Type 411D Perforated Galvanized Steel Grate (ADA) - 1 Meter

Galvanized steel grates are the general-purpose grate family for the ACO KlassikDrain K100 and KS100 4" trench drain systems, engineered to capture and convey stormwater across commercial and industrial applications. Grates in the 100 series are shared across both edge-rail materials, so a single part number fits galvanized-rail K100 channels and stainless-rail KS100 channels alike. The galvanized family spans perforated, slotted, longitudinal, and mesh patterns in 1 meter and 0.5 meter lengths, with EN 1433 load ratings that run from Class A pedestrian duty up to Class E heavy industrial duty, and several patterns carry ADA-compliant, heel-resistant ratings. Every grate secures to the channel with ACO's boltless DrainLok or QuickLok locking, and because the grate fitted determines the realized load class of the installed system, grate selection is the key specification decision for any K100/KS100 run.

The Type 411D (ACO part number 12656) is the 1 meter perforated ADA grate of the family, formed from 16 gauge galvanized steel and rated to EN 1433 Load Class C at 56,202 lbs (774-1,160 PSI) on K100, KS100, and H100K-8 runs. Its 0.25" (6 mm) diameter perforations deliver 14.1 square inches of intake area per half meter of grate, and the grate is ADA Compliant, Bicycle Safe, Heel-Safe, Heel-Resistant per ASME A112.6.3 Sec 7.12, and LEED rated, making it a natural pick for barrier-free pedestrian surfaces that also see vehicle traffic. The factory-fitted DrainLok locking device clips into the channel edge rail, and its anti-shunt mechanism restricts unwanted grate movement — boltless, barless, and with no locking bar to purchase. At 11.3 lbs, the grate unlocks and lifts out easily whenever the trench needs to be inspected or cleaned.

Quick Look

• Material: 16 Gauge Galvanized Steel
• For use with ACO Drain K100, KS100, and H100K-8 channels — 100-series grates are shared across edge-rail materials, so one part number serves both galvanized-rail (K100) and stainless-rail (KS100) channels
• Overall Width: 4.84" (123 mm), sized for the 4" (100 mm) internal width KlassikDrain channel
• EN 1433 load rated — the galvanized grate family spans Class A through Class E depending on grate type, and the grate fitted determines the realized load class of the channel system
• Boltless grate locking: the "D" in Type 411D stands for the DrainLok system — factory-fitted and barless, with no locking bar needed
• Grates lift out after unlocking for uninterrupted access to the trench during maintenance
• Used for capturing and redirecting excess stormwater to safe locations
• ACO Part Number: 12656 (Type 411D)
• Grate Length: 39.37" (1000 mm / 1 meter)
• Perforations: 0.25" (6 mm) diameter
• Intake Area: 14.1 sq. in. per half meter of grate
• Weight: 11.3 lbs
• Load Rating: EN 1433 Load Class C — 56,202 lbs (774-1,160 PSI)
• ADA Compliant, Bicycle Safe, and Heel-Safe
• Heel-Resistant per ASME A112.6.3 Sec 7.12
• LEED rated to support sustainable building credits
• DrainLok anti-shunt mechanism restricts unwanted grate movement once the grate is clipped into the edge rail

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