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About product and suppliers:
        Alibaba.com offers 9,403 door opening size products. About 36% of these are doors, 10% are windows, and 2% are locks. 

A wide variety of door opening size options are available to you, such as eco-friendly, stocked. You can also choose from steel, mdf, and composite. As well as from swing, folding, and sliding. And whether door opening size is exterior, interior, or commercial. 

There are 9,403 door opening size suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of door opening size respectively. 

Door opening size products are most popular in North America, Domestic Market, and Mid East. 

You can ensure product safety by selecting from certified suppliers, including 2,140 with ISO9001, 643 with Other, and 298 with ISO14001 certification.