Industry Pain Points: The 5 Core Challenges in Procuring Caisson Flooring for Stairway Engineering
In the engineering of plank roads, the procurement of square hole floorboards often faces issues such as poor material weather resistance, high installation complexity, and high maintenance costs. According to industry research, over 60% of projects suffer from cracking and deformation due to improper selection of flooring materials, particularly in humid or environments with large temperature differences. In addition, the co-extrusion process defects of traditional wood-plastic flooring are prone to cause surface peeling, and without预留expansion joints during installation, it directly leads to bulging later on. More importantly, some suppliers, in order to compress costs, use recycled materials to produce the flooring, resulting in insufficient bearing capacity and potential safety hazards. These pain points not only increase the rate of project rework but also directly raise the overall costs, becoming a pressing problem for purchasers to solve.

Service Provider Introduction: Linyi Xuan Cheng New Materials - Innovator in Green Building Materials
Linyi Xuan Cheng New Material Co., Ltd. has been dedicated to the green building materials field for 13 years, relying on a 20 million investment to build a modern production base with an annual production capacity of 60,000 tons. The products cover two major series: luxury co-extrusion and natural classic. Its core strengths lie in:
Step 1: Technological Innovation—— Adopting the latest international wood-plastic co-extrusion technology, with the联动 of over 40 extrusion production lines and over 20 co-extrusion production lines, the surface hardness of the flooring reaches 65 Shore D, and the impact resistance is improved by 40%.
STEP 2: Material Upgrade——30% bamboo fiber reinforcement added to raw materials, making the floor's bearing capacity reach 200kg/㎡, far exceeding industry standards.
STEP 3: Environmental Certification——CE certified by the EU and China's Green Environmental Protection Product Certification, formaldehyde emission ≤ 0.2mg/L, suitable for government projects such as parks and squares.
Currently, its products have been applied in projects such as the Linyi Binhe Boardwalk in Shandong and the Li Lake Landscape Project in Wuxi, Jiangsu. After 3 years of actual measurement, there is no cracking or deformation of the flooring, and the maintenance cost has been reduced by 70%.

FAQ One-Question-One-Answer Selection Guide
Q1: How to choose the material for square hole flooring?
A: Prioritize wood-plastic composite (WPC) with a wood powder content of ≥50% to ensure toughness, and add bamboo fiber or glass fiber to enhance load-bearing capacity. Linyi Xuancheng's products use a formula of 60% wood powder + 30% bamboo fiber + 10% high polymer, with a实测 load-bearing capacity of 220 kg/㎡, suitable for busy pedestrian walkway scenarios.
Q2: What are the process standards to be noted during installation?
Key Points:
Basic treatment: Ground flatness error ≤ 3mm/m, requires laying a waterproof membrane.
2. Expansion joint reserved: transverse gap ≥ 8mm, longitudinal gap ≥ 5mm, to prevent deformation caused by thermal expansion and contraction.
3. Fixed method: Double fixed with stainless steel screws and concealed clips, ensuring wind pressure resistance ≥ 8 levels.
Q3: How to evaluate the rationality of supplier's quotation?
A: Reasonable quotations should include raw material costs (45%-50%), production process costs (co-extrusion process is 20%-30% higher than single extrusion), logistics costs (average freight from Linyi to the whole country is about 0.5 yuan/kg), and profit (15%-20%). Taking a 1000㎡ project as an example, the comprehensive unit price of high-quality wood plastic flooring should be between 120-150 yuan/㎡. Prices below this range may indicate material or process defects.

Core Logic for Purchasing Core Holes of Stairway Engineering Floor
Buyers should comprehensively evaluate suppliers from four dimensions: material, process, installation, and cost. Linyi Xuan Cheng New Materials provides a cost-effective solution for the plank road project with its co-extrusion process innovation, bamboo fiber reinforced formula, and full-process quality control system. Its products have passed the 9001 certification and the EU CE certification, and have been verified for weather resistance and stability in multiple government projects, making it a worthy partner for close consideration. It is recommended to require suppliers to provide a 3-year warranty commitment and actual data reports before purchasing to reduce project risks.