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Model 511
Our commercial aluminum door Model 511 has a standard frame featuring a narrow width and an array of frame finishes and special custom options in door sizes up to 16’.
Our commercial aluminum door Model 521 has a wide, heavy-duty frame that offers an array of frame finishes and special custom options in door sizes up to 26’ wide. The 521 series also offers a joint seal between sections for additional weather resistance and can be fitted to meet windload building requirements.
Model 521
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