Auto Repair Drainage

Galvanized Auto Repair

Automotive Facility Drains

It’s important to consider different drainage options both inside and out when it comes to auto repair shops and wash bays. In both situations, you have to remember to check with state and local laws requiring the proper capture and disposal of direct and indirect fuel and chemical runoff.

Around the outside of the building you need to ensure that storm water runoff is directed away from the building and that the grates selected can handle vehicular traffic loads but are pedestrian friendly in areas closest to the building.

Inside the bays, you will need to consider how to capture and contain any of the fluids that are drained from vehicles. It is also important to ensure that it has the quality to hold up to the corrosive environment and is nonflammable. Wash bays benefit from trench drains or catch basins situated in the center of the area with the concret being sloped towards the drainage system.

Regardless of the type of system install, periodic maintenance is encouraged in order to keep the system free from debris to ensure it’s effectiveness.


  • Catching Chemicals
    Inside the body shop it’s important to ensure that any chemical waste is properly captured and contained to meet federal, state and local requirements. Our experts can help you find the right drainage system that can hold up to the harsh vehicular chemicals.
  • Fully Loaded
    The size and weight of the equipment that passes over trenches determines what type of grates is needed. Don’t forget to consider whether the grates will have pedestrian traffic to avoid safety issues.
  • Safety First
    Consider nonflammable drain alternatives. With all the chemicals going down the drains, HDPE and similar type plastics can combust under certain conditions.

Product Recommendations

15″ Fiberglass Kit w/ I-Bar Grate and EZ Frame – Load Class C

SKU: FGK-I4015-EZ-15
Load Class C
System: Frame and Grate
Grate Material: Fiberglass
Grate Pattern: Slotted
Frame Edging: Fiberglass Frame
Grate Width: 15 inch
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POLYCAST®600 Kit w/DG0633 Square Deco Perf Stainless Steel Grate & Edging | Load Class A

Load Class A
System: POLYCAST 600
Channel Material: Polymer Concrete
Grate Material: Stainless Steel
Grate Pattern: Perforated, Square Deco
Frame Edging: Stainless Steel Edging, No Frame
Grate Width: 6 inch
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3″ Gray MAX Mini Kit w/ Perforated 304 Stainless steel Foam Pattern Grates

Load Class B
System: MAX Mini
Channel Material: Plastic
Grate Material: Stainless Steel
Grate Pattern: Foam, Perforated
Grate Width: 3 inch
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