Exodus 28
Young's Literal Translation (YLT)
16 it is square, doubled, a span its length, and a span its breadth.
World English Bible (WEB)
16 It shall be square and folded double; a span{A span is the length from the tip of the thumb to the tip of the little finger when the hand is stretched out (about 9 inches or 22.8 cm.)} shall be its length of it, and a span its breadth.
Bible in Basic English (BBE)
16 It is to be square, folded in two, a hand-stretch long and a hand-stretch wide.