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Single-hung |
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Multi Single-hung* |
"Single Frame" |
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Maximum area: |
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24 |
sq. ft. |
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40 |
sq. ft. |
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Maximum width: |
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48 |
inches |
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96 |
inches |
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Maximum height: |
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72 |
inches |
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72 |
inches |
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Minimum area: |
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2 |
sq. ft. |
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Minimum width: |
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11 |
inches |
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30 |
inches |
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Minimum height: |
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22-1/2 |
inches |
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22-1/2 |
inches |
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Minimum sash height: |
11 |
inches |
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*Triple single-hungs over 30 sq. ft. |
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Maximum sash height: |
48 |
inches |
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must be H-mulled. |
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Maximum top lite: |
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20 |
sq. ft. |
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| EGRESS: |
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To meet egress requirements, the window must provide a minimum net clear opening |
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of 5.7 sq ft with a minimum width of 20 inches and a minimum height of 24 inches. |
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Minimum frame width for egress: |
22.75 |
inches (20 inch clear opening) |
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Minimum frame height for egress: |
55.65 |
inches (24 inch clear opening) |
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NOTE!!! A 23.5" x 56.25" unit does not provide 5.7 sq ft net clear opening for egress. |
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Use the following formula to determine egress compliance: |
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