Factory-direct steel gratings & stair treads, shipped worldwide
Floor Drain Cover
Handles storm water and truck wheels alike. Floor Drain built for real sites.
Factory-direct from Dengtai, Shijiazhuang — shipped worldwide FOB Tianjin · Itemized quote within 24 hours
Covers, frames and grates from one factory
No middlemen, no markup on your floor drain grating
Certified & tested
Reports on request, mill cert with every order
Samples in 5–7 days
Production in 15–25 working days
FOB Tianjin
Shipped worldwide, EXW / CIF negotiable
Load class guide
One Cover, Many Floors — Load Framing by Floor Type
A floor drain cover in a lobby corridor and one in a washdown plant share nothing but their job title. Frame the load by what crosses the floor — shoes, trolleys or trucks — and the mesh, bar size and material follow. Class groups below are referenced to EN 124.
| Class (referenced to EN 124) | Floor duty & typical location | Typical construction from our range | Heel-proof option |
|---|---|---|---|
| A15 | Pedestrian-only floors — lobbies, corridors, wet rooms, plant floors | Welded cover, light 20×3 mm bearing bars, 30/40 mm centers | Yes — 11/11 mm close mesh for public interiors |
| B125 | Commercial floors with light delivery traffic — retail backrooms, kitchens | Welded 25×3 to 30×3 mm bearing bars, 30 mm centers, banded edges | Yes — close mesh in staff and public zones |
| C250 | Parking decks, aprons and kerbside edges | Welded 40×5 mm bearing bars, 30/40 mm centers | On request — expect reduced flow |
| D400 | Yards, truck crossings, heavy washdown plant floors | Welded heavy bars up to 100×8 mm, 30/40 mm centers, optional frame | Not typical — open mesh keeps the flow |
Class groups are public EN 124 parameters, not a certification claim — your final construction is confirmed with load tables inside the 24-hour quote. Not sure which class your floor needs? Tell us what crosses it — shoes, trolleys or forklifts — and we will spec the cover.
Sizing to the opening
How a Floor Drain Cover Is Sized and Fitted
1 · Measure the clear opening
Length and width of the opening — or diameter for round drains — plus how the cover will sit: on a bearing ledge, in a recess, or inside a frame. A photo and a sketch are enough to start.
2 · Cut and banded to fit
The cover is cut to your dimensions with a banded edge all round — square, rectangular or round, any length. Notches for pipe penetrations and lifting or hinge details are taken from your drawing.
3 · Finished for the floor
Carbon steel covers go to our certified galvanizing partner for hot-dip galvanizing (ASTM A123 / ISO 1461) — typically 2–3 days, already counted inside your production window. Stainless covers ship for wet interiors.
| Opening type | What we need from you | Cover approach |
|---|---|---|
| Point floor drain | Clear opening L×W or diameter, recess depth | Single cover, banded edge, optional lifting or hinge detail |
| Linear floor channel | Run length × clear width, outlet positions | Channel grating in panels, any length, butt-jointed on site |
| Framed opening | Opening size and frame type | Cover sized to sit inside the frame or on the bearing |
| Odd shapes & penetrations | Sketch, photo or CAD drawing | Cut to drawing — notches, angles and cutouts included |
Why a factory cover
Why Buyers Order Their Floor Drain Cover From the Mill
Custom floor drain cover, any length
Covers, frames and grates from one factory, cut and banded to your drawings. Wholesale runs and small trial orders both welcome — replacement covers for existing floors included.
High-flow open mesh
Open bar mesh keeps water moving and lets grit drop into the channel instead of pooling on the floor — the same floor drain grating geometry used on our trench and gully covers.
Heel-proof close-mesh option
Press-locked close mesh brings openings down to 11/11 mm — too narrow for a shoe heel or trolley wheel to enter. It is the geometry of choice for public interiors, and the water still gets through.
Applications
Which Floor Is Your Cover Sitting In?
From a pedestrian indoor floor to a washdown plant, the duty climbs — and the cover follows. These are the four floors we quote most.
Pedestrian indoor floors
Lobbies, corridors and wet rooms — light welded covers or heel-proof close mesh where the public walks.
Kitchens & food plants
Daily washdown and moisture — SS304 covers as standard, SS316 where cleaning chemicals run hot.
Loading bays & aprons
Wheels and pallet trucks cross these floors — heavier bars, closer centers, hot-dip galvanized against standing water.
Plant rooms & washdown areas
Constant water and process splash — heavy-duty open-mesh covers, stainless where corrosion leads the spec.
Specifications
Floor Drain Grating Specifications & Materials
| Parameter | Range |
|---|---|
| Bearing bar | 20×3 mm to 100×8 mm, plain or serrated |
| Bar spacing | 30 / 40 / 60 mm centers; press-locked close mesh down to 11/11 mm |
| Cover size | Any length, cut to the opening; stock panels up to 1.25 m × 6 m |
| Edge treatment | Banded edges standard; frames and lifting or hinge details optional |
| Materials | Q235B carbon steel · SS304 / SS316 stainless |
| Surface | Black or hot-dip galvanized (ASTM A123 / ISO 1461) on carbon steel |
| Documents | MTC EN 10204 Type 3.1 + factory inspection report with every order |
Materials & test documents
Every heat of Q235B, SS304 or SS316 enters production with its mill test certificate verified at goods-in — the first of our five QC stages. Covers leave with documentation, not promises:
- Mill test certificate to EN 10204 Type 3.1
- Factory inspection report with every shipment
- Declaration of Conformity prepared per order destination
Q235B + hot-dip galvanizing
The galvanized floor drain cover default for dry interiors and outdoor slabs. Coating thickness is sampled on every galvanized batch. Galvanized grating line →
SS304 stainless
Routine moisture and daily washdown — kitchens, food prep floors and clean areas. Same construction range as carbon steel. Stainless grating line →
SS316 stainless
Chlorides, salt and aggressive cleaning chemistry — chemical plants, coastal floors and salted entrances where 304 would pit.
Standards & compliance
Produced to Recognized Standards — Documents on Request
EN 124 class context
Covers are produced to your stated duty, with class groups referenced to EN 124 — not offered as a certification claim. Load tables come with your quote.
ANSI / NAAMM MBG 531
Welded covers produced to MBG 531 reference practice, with weld inspection built into our five-stage QC plan.
CE & SGS tested
Certified & tested, reports on request — we show documents you can verify, not a certificate wall.
Custom made
Custom Sizes, Cut and Banded to Your Drawings
Send your layout
Opening sizes, floor type, traffic and quantities — or just photos and a sketch. Drawing review is free.
Quote within 24 hours
Itemized, FOB Tianjin as standard — EXW or CIF on request. Small trial orders welcome.
Samples in 5–7 days, production in 15–25
Working days after drawing confirmation, hot-dip galvanizing included. Installation drawings and fixing layout ship with the order.
Factory-direct quote
Get a Factory Quote
Send your floor drain layout for a factory quote — we reply within one business day, free drawing review included.
- Five-stage QC, from MTC verification at goods-in to final inspection
- DoC, MTC EN 10204 3.1 and inspection report with every order
- Factory audits welcome — see the lines before you commit
Prefer to talk? WhatsApp us or sales@dtsteelladder.com
Request your quote
Five fields — we do the rest.
FAQ
Frequently Asked Questions
How do I size a floor drain cover to my opening?
Measure the clear opening — length and width, or diameter for round drains — and note how the cover will sit: on a bearing ledge, in a recess, or inside a frame. Send those dimensions with the floor type and traffic, and the cover is cut to fit with banded edges. Odd shapes and pipe penetrations are cut from your sketch or drawing.
Do you offer heel-proof floor drain covers?
Yes. Press-locked close mesh brings openings down to 11/11 mm — too narrow for a shoe heel or trolley wheel to enter — while water still passes through. It is the usual choice for pedestrian interiors and public floors where an open bar mesh would be too wide.
Which material should a floor drain cover use in wet interiors?
Q235B carbon steel with hot-dip galvanizing suits mostly dry indoor and outdoor floors. SS304 handles routine washdown and moisture; SS316 is the pick where chlorides, cleaning chemicals or salt are present. Every order ships with a mill test certificate to EN 10204 Type 3.1.
Related pages
Related Drainage Grating Pages
Metal Drain Grating
The open-mesh drain grating line behind most floor covers.
View page →Metal Gully Grid
Point gully grids — formats and load class context.
View page →Trench Drain Covers
Linear trench covers — spans, locking and heel-safe edges.
View page →Driveway Drain Grate
Outdoor slabs and wheel loads — the heavier end of the range.
View page →Drain Stainless Steel
SS304 / SS316 grade chooser for wet and washdown floors.
View page →Steel Grid For Drainage
Drainage grid selection guide — openings, flow and debris.
View page →