Factory-direct steel gratings & stair treads, shipped worldwide
Stainless Steel Open Mesh Flooring
SS Open Mesh: every batch ships with traceable mill test certificates.
Itemized quote within 24 hours · Material certs ready to preview
Stainless open mesh, built in-house
SS304 / SS316 welded or press-locked under one roof
Certified & tested
Reports on request, MTC with every order
Samples in 5–7 days
Production in 15–25 working days
FOB Tianjin
Shipped worldwide, EXW / CIF negotiable
Material comparison
Steel Grating Material Comparison
Open mesh in stainless is bought for one reason: a floor that must be hosed clean, drain through, and never depend on a coating. Buyers searching stainless steel mesh flooring or stainless steel open grid flooring usually mean exactly this product — an SS304 / SS316 panel with full drainage. Here is how the four common grating materials compare before you commit.
| Material | Corrosion behavior | Typical environments | Hygiene & cleanability | Relative cost | Surface finish |
|---|---|---|---|---|---|
| Q235B carbon steel | Coating-dependent — unprotected steel corrodes in wet service | Dry indoor platforms, warehouse floors | Coating seams trap soil; not for washdown zones | Budget baseline | Black mill finish, primer on request |
| Q235B + hot-dip galvanized | Zinc barrier after fabrication, ASTM A123 / ISO 1461 reference | Outdoor walkways, municipal trench covers | Good outdoors; coating is not made for caustic washdown | Budget plus coating | Hot-dip galvanized after fabrication |
| SS304 stainless | Corrosion-resistant in its own right — no coating to apply or maintain | Food plants, dairies, breweries, general washdown areas | Open mesh flushes clean in place; nothing to blister or flake | Premium vs coated carbon | Pickled and passivated |
| SS316 stainless | Adds chloride resistance for brine, salts and coastal air | Pharma wet areas, chemical processing, salt-splash floors | Same cleanability; holds up to salt-based cleaning agents | Highest of the four | Pickled and passivated |
Not sure which grade your washdown zone needs? Send your drawings — we will spec it inside the 24-hour quote.
Open mesh vs solid plate
Drainage-Through Flooring vs Solid Stainless Plate
In a washdown zone the floor is cleaned several times a day, so where the water goes decides everything. Open mesh lets it fall through; solid plate holds it until someone removes it. An honest side-by-side:
| Dimension | Open mesh | Solid stainless plate |
|---|---|---|
| Drainage | Washdown water, foam and spills fall straight through to the drain below | Water stays on the surface until the floor is sloped or squeegeed |
| Standing water | No pooling underfoot — the walking surface never holds a wet film | Puddles collect on flat panels between cleans |
| Panel weight | Open construction carries less steel, so panels are noticeably lighter per m² | Heavier per m² and needs stronger support framing |
| Cleaning | Flush in place — hose the surface and everything drains | Needs falls to drain or wet vacuuming after each wash |
| When the other wins | Small parts, product or tools must not fall through — specify close mesh to 11 / 11 mm instead | Rolling carts, small components or a sealed surface requirement |
Nothing pools, nothing coats
The mesh is the drainage: liquids pass through the walking surface and leave via the channel below, so the floor dries itself between wash cycles. And because SS304 / SS316 resists corrosion by grade rather than by coating, there is no paint layer to blister, flake or contaminate the zone above the drain.
Mesh geometry options → · Close mesh when debris must stay on top →
Hygiene zones
The Zones That Ask for Open Mesh Stainless
A drainage-through floor is specified by zone, not by price list. Each zone below cleans differently — here is what the floor has to survive, and how open mesh stainless answers.
Food & beverage washdown
SS304 open mesh around processing lines: daily hose-down and caustic cleaning agents drain straight through the floor into the channel, with no coating to blister, flake or soil the product zone.
Floor demands: flush cleanability, resistance to cleaning chemicals.
Pharmaceutical wet areas
Spills pass through immediately instead of spreading across a sealed surface; corrosion-resistant stainless keeps the floor free of coating flakes and corrosion stains that audits flag.
Floor demands: spill-through drainage, no coating to shed.
Chemical & process areas
SS316 where brine, chlorides and process chemicals strip zinc coatings fast. The section keeps its strength with no protective layer to inspect, repair or re-apply.
Floor demands: chloride resistance, zero coating maintenance.
One material system
Continue the cleanable line under the floor: pair SS open mesh panels with stainless channel drains so floor and drainage are one material, not a mixed-metal joint that traps soil.
Floor demands: grating and channel as one cleanable line.
An honest note on hygiene rules
Hygiene regulations differ market by market, and we do not claim food-contact certifications for our flooring. Our materials are suitable for washdown areas, and suitability statements are provided on request — your hygiene authority or auditor makes the final call for your plant.
Why specify SS open mesh
Why Buyers Specify Stainless Open Mesh Flooring
Made to spec, any size
Welded or press-locked panels cut and banded to your drawings — panel size, mesh, grade and banding all to specification, from small trial orders to full programs, with free drawing review inside the 24-hour quote.
Drains through — built for wet sites
SS304 for routine washdown, SS316 for chloride service: corrosion resistance lives in the grade, not in a coating. Water leaves through the mesh, so the walking surface stays visible, dry-edged and safe underfoot.
Factory-direct, no middlemen
Buy from the workshop that cuts, welds and inspects the panels — FOB Tianjin as standard, itemized quote on request, and mill test certificates (EN 10204 Type 3.1) with every shipment.
Specifications
Stainless Open Mesh Flooring Specifications
| Parameter | Range |
|---|---|
| Bearing bar | 20×3 mm to 100×8 mm, plain or serrated |
| Mesh opening | 30 / 40 / 60 mm centers; press-locked close mesh to 11 / 11 mm |
| Grades | SS304 / SS316 (Q235B for adjacent carbon zones) |
| Process | Electro-forged welded or press-locked |
| Panel width | Up to 1.25 m |
| Panel length | Up to 6 m |
| Surface | Pickled and passivated; mill finish on request |
| Format | Stock designations or fully custom, cut and banded |
Grades & test documents
Every heat of SS304 or SS316 enters production with its mill test certificate verified at goods-in — the first of our five QC stages. Panels 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
- Suitability statements for washdown areas on request
Load tables & calculators → · Stainless floors for every duty →
Standards & compliance
Produced to Recognized Standards — Documents on Request
ANSI / NAAMM MBG 531
Welded stainless panels produced to MBG 531 reference practice, with weld inspection on our five-stage QC plan.
EN 10204 Type 3.1 material proof
Grade claims backed by mill test certificates — chemical and mechanical values traceable to the heat, not a marketing line.
CE & SGS tested
Certified & tested, reports on request — we show documents you can verify, not a certificate wall.
Custom made
Custom Open Mesh Floors, Cut and Banded to Your Drawings
Send your drawing
Panel sizes, mesh, grade (SS304 / SS316), 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 before a full program.
Samples in 5–7 days, production in 15–25
Working days after drawing confirmation. Installation drawings and fixing layout ship with the order — bolted assembly, no site welding.
Factory-direct quote
Get a Factory Quote
Send your SS Open Mesh specs for a factory quote. Material certs are ready to preview before you commit, and an itemized quote lands within 24 hours.
- Mill test certificates (EN 10204 Type 3.1) with every shipment
- SS304 or SS316, welded or press-locked, close mesh to 11 / 11 mm
- Five-stage QC, from MTC verification at goods-in to final inspection
Prefer to talk? WhatsApp us or sales@dtsteelladder.com
Request your quote
Five fields — we do the rest.
FAQ
Frequently Asked Questions
Is your stainless open mesh flooring certified for food plants?
We do not claim food-contact certifications. Our SS304 and SS316 open mesh flooring is built from materials suitable for washdown areas, and we provide suitability statements on request, alongside mill test certificates (EN 10204 Type 3.1) with every shipment. Final acceptance sits with your hygiene authority or auditor.
Open mesh or close mesh - what falls through?
Open mesh at 30 / 40 / 60 mm centers drains washdown water instantly and lets small debris fall through to the drain below. Where nothing may drop through, press-locked close mesh down to 11 / 11 mm keeps debris on the walking surface while liquids still drain.
What is the lead time for stainless open mesh flooring?
Samples ship in 5–7 working days and mass production runs 15–25 working days after drawing confirmation. Rush production in 10–15 days is possible with a surcharge — ask in your quote.
Related pages
Related Grating Pages
Stainless Floor Grating
Spec-led stainless floors — loads, spans and cleanability tables.
View page →Stainless Steel Floor Grating
Application-led stainless floors for food, chemical and washdown plants.
View page →SS Grating
The full stainless line — SS304 / SS316 panels and treads.
View page →Grating Mesh
Mesh geometry — 30 / 40 / 60 mm centers and heel-proof openings.
View page →Close-Mesh Grating
Press-locked 11 / 11 mm mesh where debris must stay on top.
View page →Metal Mesh Grating
Mesh in other metals — stainless for corrosion zones, galvanized for weather.
View page →