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fence; paling; railing
「柵」 has another reading with different meanings.
weir
庭にわに柵さくを作っつくって犬いぬを守っまもっている。
I built a fence in the garden to protect the dog.
柵さくの向こうむこうに牛うしがのんびりいました。
There were cows beyond the fence.
木きの柵さくがとても風情ふぜいがあって素敵すてきだ。
The wooden fence has a lot of charm.