Hi Paul! Thank you for your interest in McNICHOLS products. You are correct in thinking aluminum would not get as hot as other metal products. The grating used at the Margarido House was a standard spaced grating with an approximate 1” x 4” opening. This open area may be a bit too big for walking; however, our Architectural Design Consultant Team would be happy to further assist you with your inquiries. Please contact us at 1 (866) 754-5144, 5282 or sales@mcnichols.com. We are Inspired to Serve!
-The Hole Team
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Aluminum
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