Bi-Fold Gate With Centre Post

By Huu Khanh Nguyen · Updated October 29, 2026 · gate, bi-fold gate, accordion gate, centre post, folding gate, industrial gate

An accordion swing gate of one or two leaves, each made of two hinged sections that fold back beside a column, closing on a centre post when the gate has two leaves. Clear opening and gate height Single or double leaf and hand Leaf section, column and finish Opening motion in the plan symbol

Parameters

Name	Default	Unit
Clear Opening	4000	mm
Gate Height	2000	mm
Column Width	160	mm
Leaf Depth	60	mm
Leaves	1
Hand	left
Opening Angle	0	°
Finish	white
groundClearance	125	mm
postGap	75	mm
foldGap	50	mm
pinOffset	125	mm
pinToFace	pinOffset - postGap	mm
height	gateHeight - groundClearance	mm
leafSpan	(openingWidth - (leafCount - 1) * postWidth) / leafCount	mm
leafLength	(leafSpan - postGap - foldGap) / 2	mm
foldPivot	leafLength + foldGap / 2 - pinToFace	mm
Width	openingWidth + 2 * postWidth	mm
Height	gateHeight	mm