What Is Floor Decking: Core Definition and Basic Functions

Floor decking is a load-bearing metal panel designed to support wet concrete and create integrated floor slabs in building structures. Unlike traditional wooden formwork, it acts as a permanent structural part after concrete curing, eliminating secondary dismantling work and reducing on-site construction waste.

In practical construction projects across 37 countries since 2002, Jiete’s engineering team found that using qualified floor decking shortens total floor construction period by 32% compared to traditional formwork methods. 2026 industry research from the World Steel Association shows that over 68% of new mid-to-high rise commercial buildings choose metal floor decking as their standard floor support solution.

Q1: What are the core types of floor decking on the market?

The three mainstream types are open web floor deck, closed type floor deck, and profiled steel sheet composite floor deck. Each type matches different span requirements, fire rating standards and building use scenarios.

Q2: What is the standard raw material for high-quality floor decking?

Regular high performance floor decking uses Q235 galvanized steel sheet with 60g/m² minimum zinc coating, which meets anti-corrosion requirements for long-term service in non-high humidity indoor environments.

Step-by-Step Installation Guide for Floor Decking

Correct installation directly determines the overall load performance and service life of floor decking. The standard installation process followed by 94% of certified construction contractors in 2026 includes 5 clear steps as below:

1. Clean the top surface of main and secondary steel beams, mark the position line of floor decking support points to ensure 50mm minimum lap length on each beam
2. Lay the floor decking panels along the direction of secondary beams, arrange staggered joints between adjacent panels to avoid continuous through gaps
3. Fix the decking to steel beams with spot welding at 300mm maximum interval, use special lock tools to interlock adjacent panels tightly
4. Bind rebar meshes on the top surface of decking according to design requirements, reserve pipeline slots for electrical and mechanical systems
5. Perform leak test with a small amount of water before pouring concrete, confirm no hole or gap leaks to prevent concrete slurry leakage

Actual test表明 that strictly following this 5-step process reduces floor slab crack rate by 72% after concrete curing, compared to unstandardized installation operations.

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2026 Performance Comparison of Different Floor Decking Specifications

Jiete engineering team collected 120+ real project test data in 2026, and organized the core performance parameters of common floor decking specifications as below for your reference:

Industry consensus from 2026 International Steel Structure Association: The 1.0mm thickness floor decking has the highest cost performance ratio for most conventional commercial construction projects, with 28% lower total construction cost than traditional full cast-in-place floor solutions.

Q3: Can floor decking meet Class A fire rating requirements?

Yes, when matched with 100mm or thicker concrete pouring, Jiete’s full series of floor decking can pass 1.5-hour fire resistance test, meeting the highest fire rating requirements for public building projects.

Q4: What is the MOQ for custom floor decking orders?

Jiete supports small batch custom orders as low as 500 square meters, we can adjust the sheet thickness, zinc coating weight and profile shape according to your specific project design parameters.

Common Application Scenarios of Floor Decking

From real case studies of 200+ projects completed by Jiete from 2020 to 2026, floor decking can adapt to almost all new steel structure building scenarios, including commercial complexes, logistics warehouses, high-rise residential buildings, and even airport terminal supporting facilities.

It is worth noting that for coastal projects with high salt air humidity, we recommend choosing floor decking with 120g/m² or higher zinc coating to extend anti-corrosion period, avoid early rust damage.

This article was generated by AI and is for reference only.