You can contact your fan s manufacturer for replacement.
Can you replace ceiling fan blades with smaller ones.
Typically the more blade the fan has the more surface area there will be.
If your fan blade is not damaged you can re attach it so the fan can be used while you shop for the right size fan blade replacement.
With the smaller blades the fan will probably run faster at the low speed and may be noisier.
But keep a eye on the fan motor temperature by feeling it if used for long periods.
The blades are easily changed but the extra load on the fan motor could make it heat up if the blades are too long.
If you can find blades that fit your fan switching to a smaller size blade would be fine.
Can you replace ceiling fan blades with shorter.
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Oh you said can not how.
Call the manufacturer of your ceiling fan and ask them.
Blades with higher surface area can.
Measure the length of the ceiling fan blade you just removed.
Just buy a set of 42 or so replacement blades and try it.
This will give you the proper size for replacing ceiling fan blades.
You can buy replacement blades as a set from home depot lowes etc.
Whats people lookup in this blog.
Blades 2 or 3 inches longer could be bought at lowes etc.
Trim to desired length.
However many current fans are designed specifically to be interchangeable with different size blades if your fan is one of those switching it out would be easy.
Hold a machete up to the fan blades a chain saw will substitute.
You may want to at least consider 48 s.
It should be fairly balanced since all the blades will be the same length weight shape.
Make sure you keep the screws in a safe place.
Universal replacement blades are available at home improvement and lighting stores.
Replace ceiling fan blades with the same size blades.