With the development of the industry, people’s awareness of the importance of lightweight, service life, cost, and damage value is getting deeper and deeper, making white aluminum sheets 4×8 for trailer siding more and more adopted in the manufacturing and repairing process of trailer trucks and replace steel material. The white aluminum sheets is often used for trailer siding and trailer roofing, the common applied specification is 4×8 sheets or in rolls.
The white aluminum sheets 4×8 for trailer siding adopt 3000 series and 5000 series aluminum alloy, which has the characteristics of light weight, high strength, good heat insulation, good air tightness, good corrosion resistance, good repairability, and beautiful appearance of the trailer body. The interior of the produced trailer side panel is firmly bonded, the overall strength is high, and the surface is very flat (flatness error ≤ 0.3mm/m2), which eliminates the frequent quality problems such as bubbling and wrinkling of the trailer side panel. The aluminum sheet for trailer is easy to clean and corrosion resistance, the colored coat used on the outer surface of the white aluminum sheets makes the surface of the trailer side panel smooth and clean, and the dirt can be easily removed from the entire panel. And white aluminum trailer sheet has good chemical stability to the atmosphere, water and medium concentration of acid, alkali, salt and other media, and can keep the surfaces mooth and not discolored for a long time, corrosion-resistant, sun-proof, anti-aging.
The trailer p anel is made of wear-resistant white aluminum sheets 4×8 for trailer siding material, which completely seals the perimeter of the carriage of the truck or trailer vehicle. At the same time, it can also withstand strong wind pressure, which can prevent wind, rain, dust and block external hot air. The function of keeping the cold air inside the trailer and reducing the outflow.

Product Information
| Properties | |
| Tensile Strength, psi | 25,000 |
| Yield Strength, psi | 22,000 |
| Brinell Hardness | 46 |
| Chemistry | |
| Iron (FE) | 0.70% max |
| Aluminum (Al) | Balance |
| Copper (Cu) | 0.30% max |
| Chromium (Cr) | 0.20% max |
| Magnesium (Mg) | 0.30 - 0.80% max |
| Manganese (Mn) | 0.30 - 0.80% max |
| Silicon (Si) | 0.60% max |
| Titanium (Ti) | 0.10% max |
| Zinc (Zi) | 0.40% max |
- painted aluminum trailer sheets
- Thickness: 0.040"
- Width: 12 inches
- Length: 12 inches
- Color: White
We offer painted aluminum trailer sheets in pre-cut sizes from 12” x 48” up to 48” x 96”, with a variety of colors available.
Pre-painted Finishes offer extreme durability in outdoor exposure as well as indoors because of our high-quality paint system. painted aluminum trailer sheets finishes are uniquely designed in that they offer a hard, abrasive resistant coating, yet allow the flexibility for extensive forming and fabricating. Our painted sheets are manufactured of 3105 H-14 Aluminum. 3105 Aluminum is an essentially 98% pure aluminum alloy with minor additions for strength. It is not hardenable by heat treatment. Corrosion resistance, formability and welding characteristics are excellent. It is commonly used for sheet metal work in in the manufacture of race cars, residential siding and mobile homes. Weldability of this alloy is excellent by all commercial techniques. Arc welding is preferred for the best results.








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