Floor Drain Grates, Covers & Replacement Parts

Replacement Floor Drain Grates, Covers & Plates

Shop floor drain grates, replacement drain covers, and drain plates for commercial, industrial, and residential drainage systems. MasterBuilder Mercantile offers replacement components designed to restore drainage performance without requiring replacement of the complete drain assembly.

Our selection includes round and square floor drain grates, slotted cast iron grates, ductile iron replacement covers, and specialty drain plates for compatible drainage systems from leading manufacturers, including Zurn.

Replacement Drain Grates for Commercial Applications

Replacement floor drain grates are commonly required during building maintenance, renovations, and plumbing repairs. Selecting the correct grate helps maintain drainage performance and ensures proper fit within the existing drain frame.

Common applications include:

• Commercial and industrial floor drains
• Mechanical rooms and utility areas
• Commercial kitchens and foodservice facilities
• Washrooms, showers, and locker rooms
• Promenade decks and pedestrian drainage areas
• Building maintenance and replacement projects

How to Select the Correct Replacement Floor Drain Grate

Before ordering, identify the existing drain manufacturer and model number. Check for casting numbers on the original grate and compare the replacement part's physical dimensions and configuration.

Important considerations include:

• Manufacturer and model: Confirm compatibility with the existing drain assembly.
• Grate dimensions: Measure the actual width, length, or diameter.
• Grate thickness: Verify the rim thickness and seating profile.
• Material: Select cast iron, ductile iron, bronze, or another specified material.
• Drainage pattern: Match the required slotted, perforated, or decorative configuration.
• Load requirements: Confirm the grate is suitable for the intended traffic and application.

Important: Nominal drain sizes do not always represent the actual dimensions of the removable grate. Always verify manufacturer specifications before ordering.

Shop Commercial Drainage Equipment

Need a complete drain assembly rather than a replacement grate? Explore our commercial floor drains or browse our complete commercial drains and drainage systems selection.