Steel structure manufacturer since 2009 · 8 fabrication bases in China
Floor & Envelope
Truss floor deck that stays in place, and mezzanines built on it
Our deck combines a steel bar truss with a fibre-reinforced base board that bonds to the slab. No formwork to strip, no plaster underneath. The questions buyers ask are about props, joints and approval, so this page answers those.
~28 kg/m²
Deck self-weight
1220 × 2440
Standard board size, mm
الفئة أ
Fire rating of base board
0.58 ميجا باسكال
Bond strength to concrete
Deck options
How our deck compares
| البند | Truss deck, fibre-cement base (ours) | Truss deck on galvanized sheet | Profiled metal deck | Timber formwork |
|---|---|---|---|---|
| Formwork stripping | لا شيء | لا شيء | لا شيء | Required |
| تشطيب السقف | Paint directly | Exposed sheet | Exposed ribs | Plaster needed |
| تصنيف الحريق للسقف | لوح من الفئة أ | Needs protection | Needs protection | — |
| Propping | Props over about 2 m spans | Few or none | By span | Full props |
| Soffit corrosion | No steel exposed | Coated sheet | Coated sheet | — |
Specifications
Product data
| المعامل | القيمة | ملاحظة |
|---|---|---|
| سماكة اللوح الأساسي | 1.2 / 1.5 / 1.8 / 2.0 | Unit to confirm with datasheet |
| ارتفاع الجمالون | 70 / 80 / 90 / 100 | Unit to confirm with datasheet |
| Standard board size | 1220 × 2440 mm | Cut to length |
| الوزن الذاتي | About 28 kg/m² | By model |
| الحد الأدنى لسماكة البلاطة | 100 مم | |
| Bond strength to concrete | 0.58 ميجا باسكال | Product test data |
| Base board fire rating | الفئة أ | غير قابل للاشتعال |
Source: GGSteel product standard. Truss deck in China is also covered by JG/T 368.
On site
What decides a good pour
Props. The deck carries wet concrete and workers between supports during the pour. Above about 2 m clear span, or for thick slabs, add a line of props. The deck table gives the limit per model.
Joints. Butt joints must be tight and supported so grout does not leak. Damaged boards are replaced, not patched.
Truss welds. Check the bar truss weld points and bar spacing on delivery; loose welds are rejected.
Services. Conduits run through the truss zone before the pour; holes cut later damage the board.
Installation
From truck to finished ceiling
01
التسليم
Boards cut and labelled.
02
Lifting
Bundles lifted by tower crane.
03
Laying
Laid by hand, butt joints.
04
الخدمات
Conduits through the truss zone.
05
Concrete
Slab poured; board bonds.
06
Finish
Soffit painted directly.
Mezzanine floors
Steel mezzanines for warehouses and plants
Free-standing or tied to the main frame, with stairs, handrails, pallet gates and the deck above. Designed for the floor load you declare, typically 3–10 kN/m².
- Column grid set to racking and forklift aisles
- Deck or grating options
- Guard rails and stairs per ISO 14122 or your code
- Fire protection where required
Do I need props under the deck?
For clear spans over about 2 m, a line of props during the pour. Exact limits depend on deck model and slab thickness.
Can the soffit be left exposed?
Yes. Paint or cover it without plastering.
Is it suitable for wet areas?
The board is moisture-resistant; waterproofing is still done on the slab.
Can it be used outside China?
Subject to approval by your local engineer and authority. We provide the product standard and test reports.
Floor deck quote
Send floor areas, spans and slab thickness
We return deck model, quantities and propping layout.