Solid wood folding doors easy to install, with very nice appearance.

Certification: AS2047, ISO9001, SGS, TUV

Modern PVC folding doors are not only practical but also environmentally considerate. Many models use recyclable PVC materials and are free from harmful substances like formaldehyde, making them a safer choice for homes, especially those with children or pets. They contribute to energy efficiency by providing thermal separation between rooms, reducing heating or cooling loss in open spaces. Their lightweight design means less material usage and lower transportation emissions during delivery. With a longer lifespan than cheaper plastic alternatives, PVC accordion doors reduce the need for frequent replacement, offering an eco-friendlier and safer solution for interior space management.

KDSBuilding’s solid wood hand crank windows blend traditional craftsmanship with modern engineering. Each frame is crafted from high-quality hardwood, ensuring natural beauty and long-lasting durability. The hand crank mechanism offers smooth, effortless operation—ideal for hard-to-reach areas while maintaining a classic architectural look. Our wood windows are treated for weather resistance, preventing warping, moisture damage, and insect intrusion. With energy-efficient glazing and tight sealing, they deliver excellent insulation against heat and noise. Whether for heritage restoration or luxury homes, these solid wood crank windows enhance interiors with warmth and sophistication. Combining artistry and technology, KDSBuilding offers windows that truly stand the test of time. series: Wooden opening style: hand crank Casement Glass: 5 mm+9 A+5 mm double tempered clear glass Color: wooden color Certification: CE, AS 2047 , CE

Solid wood tilt and turn window 009，space saving, easy operating, easy to install and clean.

KDSBUILDING supply factory direct sale upvc casement window 32. Designed for superior performance, PVC casement windows open fully to maximize airflow and natural light. The multi-chamber PVC frame enhances thermal efficiency, while secure hardware ensures safety. Resistant to moisture, corrosion, and UV exposure, these windows maintain stable performance and appearance over time. series: 60 series PVC opening style:  casement and fixed  Color: wood grain Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23 Visible Transmittance :  0.41 Air tightness :  0.15 Nail Fin Design  :  NO Window Screen :  no Grille design : no

Factory direct sale double entry door uses 5+9A+5MM clear tempered glass and China top brand hardware. This aluminum sliding door is designed for strength, stability, and smooth operation. The high-quality aluminum profile supports large glass panels without sagging or deformation. Precision rollers ensure quiet sliding, while well-designed sealing systems improve air tightness and weather resistance, making it suitable for both residential and commercial applications. series: 73 series thermal break opening style: sliding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23

KDS supply aluminum folding door 38. Designed for large openings, aluminum folding doors offer outstanding flexibility and space-saving performance. Reinforced aluminum profiles support large glass panels, while high-quality rollers ensure smooth and quiet operation. Ideal for patios, balconies, and commercial entrances, the door system enhances ventilation, natural light, and architectural style. series: 73 series thermal break opening style: folding Glass: 5mm+9A+5mm clear tempered glass Certification: NFRC, AAMA, CE, TITLE 24, AS2047 U-Factor  ≤ 0.3 SHGC ≤ 0.23