Ceiling fan blade span by room size — the ENERGY STAR sizing ladder

Blade span scales with room area (ENERGY STAR): 29–36 in. under 75 sq ft up to 56 in. or two fans over 400.

Five stacked bands mapping room floor area to blade span: up to 75 square feet takes a 29 to 36 inch fan, 76 to 144 takes 36 to 44, 145 to 225 takes 44 to 50, 226 to 400 takes 50 to 54, and over 400 square feet takes 56 inches or two fans. A horizontal bar in each row grows wider down the list to show the fan getting larger with the room. — Source: ENERGY STAR

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Five stacked bands mapping room floor area to blade span: up to 75 square feet takes a 29 to 36 inch fan, 76 to 144 takes 36 to 44, 145 to 225 takes 44 to 50, 226 to 400 takes 50 to 54, and over 400 square feet takes 56 inches or two fans. A horizontal bar in each row grows wider down the list to show the fan getting larger with the room.

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    <img src="https://remodelcalculators.com/api/figure-embed/ceiling-fan-blade-span" alt="Five stacked bands mapping room floor area to blade span: up to 75 square feet takes a 29 to 36 inch fan, 76 to 144 takes 36 to 44, 145 to 225 takes 44 to 50, 226 to 400 takes 50 to 54, and over 400 square feet takes 56 inches or two fans. A horizontal bar in each row grows wider down the list to show the fan getting larger with the room." width="800" height="440" style="width:100%;height:auto;border:0" loading="lazy">
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    Diagram: <a href="https://remodelcalculators.com/construction-diagrams/ceiling-fan-blade-span" target="_blank" rel="noopener">Ceiling fan blade span by room size — the ENERGY STAR sizing ladder</a> — courtesy of <a href="https://remodelcalculators.com" target="_blank" rel="noopener">RemodelCalculators.com</a>
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Ceiling Fan Size Calculator

Free ceiling fan size calculator: the right blade span for your room, plus mount type and downrod length by ceiling height. Per ENERGY STAR. No signup.

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