In global wooden door exports, climate-adapted wooden doors are critical to winning customer trust, especially in Iraq’s tropical desert climate where summer temperatures often exceed 50℃. Traditional solid wood doors here face severe issues: door frame warping, solid wood door cracking, and door leaf bulging caused by rapid moisture loss, which has long troubled local users. When an Iraqi client turned to our international independent site for a solution to this persistent wooden door deformation problem, we developed a tailored anti-deformation wooden door plan, combining material upgrades and structural optimization, which not only fully addressed the client’s concerns but also established a benchmark for our high-temperature resistant wooden doors in the Middle Eastern market.

We started with in-depth collaboration with the client, organizing three rounds of focused meetings involving wooden door product developers, material specialists, and customer service representatives familiar with the Middle East market. Through these discussions, we gained key insights: local solid wood door frames typically warp or crack within 3 to 6 months of installation, as heat from walls and floors accelerates moisture loss and material damage; large door leaves often bulge in the middle under high temperatures, leading to stuck doors that are hard to open or close. We also confirmed critical climate data for the client’s region—over 180 days a year with temperatures above 40℃, daily temperature fluctuations of up to 15℃, and summer humidity levels consistently below 30%—all of which exacerbate wooden door deformation. With this clear understanding, we shifted from a generic wooden door supply model to a targeted problem-solving approach, laying the groundwork for effective customization.

To create this anti-deformation wooden door, we implemented three core upgrades. First, to solve door frame deformation, we replaced traditional solid wood with WPC (Wood-Plastic Composite) door frames. As a composite material blending wood fibers and polymers, WPC wooden door frames offer exceptional high-temperature stability: laboratory tests simulating Iraq’s 50℃+ environment showed WPC’s thermal expansion coefficient is only 1/3 that of solid wood—after 72 hours of high-temperature exposure, WPC frames showed no warping, while solid wood frames warped by 2.3mm. Additionally, WPC door frames resist moisture and mold, preventing damage from occasional ground dampness. We sent WPC and solid wood samples to the client, and after 3 days of on-site sun exposure, the client confirmed WPC’s superiority and approved the material choice. Second, to retain the client’s preferred solid wood door leaf appearance while enhancing anti-bulging performance, we optimized the door leaf’s internal structure by adding 10 high-temperature degreased solid wood bars (5 horizontal, 5 vertical) arranged in a cross pattern. This formed a "stress-dispersing skeleton" that effectively distributes internal stress caused by high temperatures, avoiding door leaf bulging. We also strictly controlled the solid wood bars’ moisture content to 8%–12%, matching Iraq’s dry climate to prevent solid wood door cracking due to humidity differences. The upgraded door leaf only added 1.2kg in weight, with no impact on installation or daily use, addressing the client’s initial concern about increased weight. Third, to ensure visual consistency between WPC door frames and solid wood door leaves, we coated both components with high-temperature resistant PVC film that can withstand 60℃ without fading or peeling and mimics natural wood grain. During production, we maintained strict control over film tension and bonding temperature (160℃ ±5℃), ensuring no color difference between the two parts and perfecting the custom wooden door’s aesthetic.

After the first batch of custom wooden doors was delivered and installed in Iraq, the client provided immediate positive feedback: "After 20 consecutive days of temperatures above 45℃, the anti-deformation wooden doors show no signs of deformation or cracking—this is exactly what we needed!" A follow-up check three months later confirmed the doors still operated smoothly, with no structural issues despite large daily temperature fluctuations. This case reinforces a key principle for our global wooden door business: localized custom wooden doors outperform one-size-fits-all products in international markets. Whether you need high-temperature wooden doors, anti-warp wooden doors, or region-specific wooden door customization, contact us via the "Online Consultation" channel on our international independent site—we will tailor a solution that fits your local climate and usage needs.