# Compound Steel Grating ![Compound steel grating with checker plate surface for platform RFQs](https://qymetaltech.com/wp-content/uploads/2026/05/compound-steel-grating-gallery-01.webp) Steel Grating Compound steel grating combines bar grating with checker plate or tread plate when a project needs a more closed walking surface while keeping structural support from the grating below. **Top plate** **Base grating** **Panel size** **Drainage** **Finish** [Send RFQ](https://qymetaltech.com/compound-steel-grating/#rfq)[Chat on WhatsApp](https://wa.me/8615152256390) **Email** sales@qymetaltech.com **Files** PDF, DWG, DXF, sketches and product photos are welcome. Buyer overview ## Define Compound Steel Grating by Plate, Base Grating and Drawings Confirm top plate, base grating, panel size, drainage gaps and finish before quotation. Share drawings, photos, quantity and export packing notes so the offer matches the project, not only the product name. ### Top plate Checker plate or tread plate thickness and pattern should be confirmed by drawing. ### Base grating Bearing bar size, spacing and panel support span decide the structural base. ### Panel size Overall size, cutouts, banding and edge details should match site layout. ### Drainage Closed surface areas may still need drainage gaps, openings or removable panels. ### Finish Hot-dip galvanized, painted or other finish can be reviewed by environment. Specification options ## Compound Steel Grating Specification Options Use these options to confirm top plate pattern, base grating structure and panel fabrication before quotation. ![Compound Steel Grating - Top plate and pattern](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-compound-steel-grating-10.webp) ### Top plate and pattern Confirm checker plate or tread plate thickness, surface pattern and welded connection details. ### Base grating structure Confirm bearing bar size, bar spacing, cross bar pitch and support span. ### Panel layout and installation Confirm cutouts, banding, panel marks and site installation layout. ## Drawing and RFQ Review Notes | Drawing package | Panel size, cutouts, bearing direction, support span and installation zone should be clear; marked PDF, DWG, DXF or site sketch can be reviewed. | |---|---| | Top plate | Confirm checker plate or tread plate thickness, raised pattern, welded coverage, drainage slots and closed-surface zones. | | Base grating | Confirm bearing bar size, bar spacing, cross bar pitch, support span and load direction for the structural base. | | Service condition | Note ramps, cart traffic, wet areas, removable panels, wheel loads or replacement requirements before quotation. | | Packing marks | Panel numbers, bundle groups and installation zones help match drawings, site sequence and export packing. | Design notes ## Share Drawings, Photos and Panel Marks Before Quotation For replacement panels, old drawings, site photos or hand-marked dimensions can be reviewed when full CAD files are not available. Panel marks, drainage gaps, cutouts and installation zones reduce quotation revisions and help production match the project layout. Standards reference ## Standards and Finish References for Project Review - Steel grating can be reviewed according to drawings and standards such as YB/T 4001.1, ANSI/NAAMM MBG 531 or BS 4592 when required. - Hot-dip galvanizing can be specified according to ISO 1461 or ASTM A123/A123M when a defined zinc coating reference is needed. - Platform, tread and access projects may refer to ISO 14122 or local safety requirements for walking surfaces and guardrail interfaces. - Final specification should follow project drawings, load notes, local codes and buyer approval documents. Specification examples ## Common compound steel grating model expressions | G325/30/100 + 3 mm plate | 32 x 5 mm base grating with checker plate for service platforms and maintenance access. | |---|---| | G405/30/100 + 4 mm plate | Heavier base bar and thicker plate for longer spans, wheel traffic or higher load review. | | Galvanized compound panel | Welded, banded and hot-dip galvanized after fabrication when the project needs corrosion protection. | | Marked replacement panel | Panel mark, cutouts, bearing direction and edge banding confirmed by old drawings or site photos. | Use these examples as RFQ shorthand, then confirm final dimensions, load, material, finish and drawings before production. Applications ## Where compound steel grating is commonly used ![Compound Steel Grating - Ramps and service platforms](https://qymetaltech.com/wp-content/uploads/2026/05/compound-steel-grating-gallery-02.webp) ### Ramps and service platforms Used where carts, small wheels or foot traffic need a more closed surface. ![Compound Steel Grating - Drainage and maintenance areas](https://qymetaltech.com/wp-content/uploads/qymt-img-20261017/qymt-compound-steel-grating-11.webp) ### Drainage and maintenance areas Useful when a cover needs support with selected drainage or removable access. ![Compound Steel Grating - Fabricated access panels](https://qymetaltech.com/wp-content/uploads/2026/05/compound-steel-grating-gallery-04.webp) ### Fabricated access panels Can be reviewed with openings, notches and edge banding by drawing. RFQ checklist ## Send compound steel grating details for a faster quote Include dimensions, material, finish, application, quantity and destination. Drawings, photos or old specifications are useful when the product must match an existing project. [Send RFQ](https://qymetaltech.com/compound-steel-grating/#rfq)[Back to Products](https://qymetaltech.com/products/) ### Compound Steel Grating RFQ checklist - Panel size, support span and bearing direction - Base grating bearing bar size, spacing and cross bar pitch - Checker plate thickness, raised pattern and welded coverage - Drainage gaps, cutouts, openings and banding - Finish, quantity, destination and packing marks Project notes ## Confirm drawings, finish and packing before production For project supply, compound steel grating should be checked against the drawing, installation area and export packing sequence before production. Clear marks, accessories and finish requirements reduce revision time and make the quotation easier to compare. ## Factory review checklist - Panel size, support span and bearing direction - Base grating bearing bar size, spacing and cross bar pitch - Checker plate thickness, raised pattern and welded coverage - Drainage gaps, cutouts, openings and banding - Finish, quantity, destination and packing marks FAQ ## Common Compound Steel Grating Questions What is compound steel grating? Bar grating with a checker plate or tread plate welded on top. It gives a more closed walking surface while the grating underneath carries the load. Where is compound grating used? On ramps, service platforms and access covers where carts, small wheels or foot traffic need a closed surface. Which combinations are common? For example G325/30/100 with a 3 mm plate for service platforms, or G405/30/100 with a 4 mm plate for longer spans or wheel traffic. Does compound grating still need drainage? Often yes. Mark drainage slots, openings or removable sections on the drawing so water does not collect on the closed surface. Can compound grating be hot-dip galvanized? Yes, after fabrication. Welding areas, venting and drainage points are reviewed first so the plate and grating galvanize properly. Can you make replacement compound panels? Yes. Old drawings, site photos or marked dimensions can be used when CAD files are not available. Related paths ### Continue from this product [Steel Bar Grating](https://qymetaltech.com/steel-bar-grating/)[Platform Steel Grating](https://qymetaltech.com/industrial-platform-grating/)[Steel Grating Trench Covers](https://qymetaltech.com/steel-grating-drain-cover/)[Galvanized Steel Grating](https://qymetaltech.com/galvanized-steel-grating/)[Steel Grating Load Table](https://qymetaltech.com/resources/steel-grating-load-table/)[How to Choose Steel Grating](https://qymetaltech.com/resources/how-to-choose-steel-grating/) ### Need a Practical Compound Steel Grating Quotation? Include product size, material, finish, quantity, destination and any photos or drawings. We will review the details before quotation. [Send RFQ](https://qymetaltech.com/compound-steel-grating/#rfq) Selection path ## Specification, data and project references ### 1 · Check technical data - [Steel grating load table](https://qymetaltech.com/resources/steel-grating-load-table/) - [How to choose steel grating](https://qymetaltech.com/resources/how-to-choose-steel-grating/) - [Steel grating weight calculator and chart](https://qymetaltech.com/resources/steel-grating-weight-chart/) ### 2 · See project references - [Factory walkway project](https://qymetaltech.com/projects/#industrial-access) - [Mixed grating export loading](https://qymetaltech.com/projects/#export-packing) - [All project references](https://qymetaltech.com/projects/) ### 3 · Datasheet and quotation - [Download the product datasheet (PDF) (PDF · English · 292 KB)](https://qymetaltech.com/wp-content/uploads/qymt-datasheets/qymt-compound-steel-grating-datasheet.pdf) - [Send drawings for a quotation](https://qymetaltech.com/compound-steel-grating/#rfq) ### Order terms - MOQ: 50 pcs (panels, rolls or pieces) - Samples available; sample and freight costs paid by the buyer - Payment: 30% deposit, 70% before shipment - Lead time: usually 30 days ex-works after deposit and drawing approval - Quotation in 24–48 hours on working days - Drawings: PDF, DWG, DXF, JPG, PNG, WebP up to 12 MB Product datasheet Compound Steel Grating datasheet 2-page PDF: typical specifications, what we confirm before quotation, RFQ checklist and contact details. (292 KB) [Download PDF (PDF · English · 292 KB)](https://qymetaltech.com/wp-content/uploads/qymt-datasheets/qymt-compound-steel-grating-datasheet.pdf) RFQ form ## Request Compound Steel Grating quotation Upload drawings if available. Include product size, material, finish, quantity, destination and application notes for a faster technical response. **Drawings welcome**PDF, DWG, DXF, photos or replacement notes are useful. **Fast technical response**Clear specifications and quantity help us review faster. **Export packing support**Labels, bundle marks and packing groups can follow your project. Related links ## Related product and RFQ resources - [Steel grating product catalog](https://qymetaltech.com/products/#steel-grating-metal-flooring)Browse the related product family section. - [Steel grating topic entry](https://qymetaltech.com/steel-bar-grating/)Steel grating family page for platform grating, stair treads, drain covers, serrated grating, galvanized grating and drawing-based RFQs. - [19-W-4 steel grating](https://qymetaltech.com/19-w-4-steel-grating/)Compare material, bar spacing and project specification details. - [Carbon steel bar grating](https://qymetaltech.com/carbon-steel-bar-grating/)Compare material, bar spacing and project specification details. - [Steel Grating RFQ Checklist for International Buyers](https://qymetaltech.com/steel-grating-rfq-checklist-international-buyers/)RFQ checklist for steel grating buyers covering application, panel or opening size, bearing bar direction, support span, finish, quantity, packing, destination and drawings. - [FRP Grating vs Galvanized Steel Grating for Wet Areas](https://qymetaltech.com/frp-grating-vs-galvanized-steel-grating-wet-areas/)Comparison guide for wet or corrosive area grating selection, covering FRP grating and galvanized steel grating by environment, traffic, support, cutouts and quotation details. - [How to Choose Steel Grating for Industrial Platforms](https://qymetaltech.com/how-to-choose-steel-grating-industrial-platforms/)Industrial platform grating selection guide covering platform use, support span, bearing direction, panel layout, finish, cutouts, fixing clips, drawings and RFQ details. - [Send project RFQ details](https://qymetaltech.com/contact/#rfq)Send drawings, dimensions, finish notes, quantity and destination for review. ## Factory verification and order terms ### Video factory visits by appointment Video factory visits can be arranged in advance. Contact our sales team to agree a time, platform and accessible production, inspection or packing areas. Other customers’ information and confidential areas are not shown. ### Lead time: usually 30 days ex-works For regular orders, production usually takes 30 days ex-works, counted from receipt of the deposit and approval of the drawings. Larger or special orders, and stock availability, are confirmed in the written quotation. Production and transport times are stated separately in the quotation or contract. ### Written quotation and delivery terms Trade terms are agreed for each order and logistics arrangement. The written quotation specifies the applicable Incoterms® 2020 rule, named delivery place or port of shipment, and whether freight, insurance and taxes are included. For containers handed to a carrier before vessel loading, FCA is considered rather than automatically using FOB. ### Quality concerns and corrective action Please provide the order number, affected quantity, photos or video, and relevant measurements or inspection records when reporting a quality concern. If responsibility is confirmed to lie with us, a remedy such as repair, additional supply, replacement, refund or price adjustment is agreed under the contract. Costs and the action plan are confirmed in writing; no unconditional return or fixed resolution period is promised. [Check our company registration details](https://qymetaltech.com/about/#verify-qy-metal-tech) Source: https://qymetaltech.com/compound-steel-grating/