Page 85 - Peter Randall "The Craft of the Knot.."

STEP 3 Make two frapping turns and finish with a Clove Hitch.

STEP 4 If the lashing is not too tight, the legs can be spread to use as
“sheer” poles.

If the poles need to be spread to make an A-frame, make sure the
tension is moderate. If they need to stay very rigid with each other, try
using more than one Sheer Lashing. Three poles can be tied in similar

fashion, with frapping turns between each pair of poles.

SQUARE LASHING