What is a custom trench drain grate?
A custom trench drain grate is made to order against a drawing or dimensioned sketch rather than taken from a standard size range. It is used when the opening is not rectangular, when services pass through the cover, or when the trench geometry is irregular.
What can be customized
- Size and shape: non-standard widths, lengths, angled or tapered panels.
- Cut-outs and notches: openings for pipes, conduits, posts and equipment.
- Corners and mitres: shaped ends for junctions and turns in the trench.
- Frames: angle-iron or flat-bar frames made to the civil opening.
- Access features: hinges, locks, lifting handles and stays.
- Finish: hot-dip galvanized, painted or stainless.
Tolerances and what is achievable
- Achievable tolerance depends on the panel size, shape and how it is cut.
- Tight tolerances need a dimensioned drawing, not a verbal description.
- Angled and tapered work generally needs more detail than square panels.
- State which dimensions are critical and which are nominal.
From drawing to finished grate
Drawing review
The opening, tolerances and load are checked against the drawing.
Nesting and cutting
Bars and panels are laid out and cut to the shape, including notches.
Assembly
The panel is welded, banded and fitted with frames or accessories.
Surface treatment
Galvanizing or painting is applied after fabrication.
Fit check
Dimensions and clearances are verified before packing.
Usage cautions
- Cut-outs remove load path—confirm capacity after cutting, not before.
- Reinforce around large openings where the specification requires it.
- Deburr all cut edges; sharp edges are a handling hazard.
- Confirm the bearing direction on the drawing to avoid a panel that spans the wrong way.
Information needed
- Dimensioned drawing or sketch of the opening
- Clear span and bearing direction
- Load case: pedestrian, forklift or vehicle
- Cut-out positions, sizes and what passes through them
- Frame, hinge, lock and finish requirements
- Quantity and delivery destination
Custom Trench Drain Grate FAQ
What should I send to start?
A dimensioned drawing or sketch with the opening, span, bearing direction and load case.
Can you cut holes for pipes?
Yes. Give the position, size and what passes through so capacity can be checked.
Are custom grates galvanized?
Yes, hot-dip galvanized after fabrication unless another finish is specified.
