Are Shangjie wooden doors first-rate?

No.

Shangjie wooden doors are considered an average product in the industry, not a first-line product.

The first-line brands of wooden doors include: Zhibang, Daolu/DOOROOM, TATA wooden doors, Qianchuan, 3D wooden doors, Yichao, Green Beauty Home Furnishing, Loushang, Eagle Lanshi/YASLLACA, Jindi, Huitailong Hutlon, Shuangyu wooden door, Shangpinbense, Mengtian, Huahe, Maxim, etc.