What does the word baluster?

Baluster - is a figure often wooden columns that support the railing of the stairs,the railing.Can be made of other materials;stone,plaster and any other material which can be sharpened on the machine. Previously, it was very fashionable to make the stone balusters,stone fence, on large country porches ,old houses.Now mostly machined on machines of any configuration to your taste or designer.Also Lew and metal but less.
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