Heavy Duty Slotted Post Timber Panel Fence

By Huu Khanh Nguyen · Updated October 28, 2026 · timber, fence, panel fence, heavy duty, heavy duty post, slotted post, gravel board, closeboard, tongue and groove, hit and miss, woven, pale, lapped, trellis, tall fence

A straight run of timber fence panels held in tall heavy duty slotted posts, standing on gravel boards. Eight panel styles, from close board to trellis Post height Gravel board style Capping between the posts Timber species or colour

Parameters

Name	Default	Unit
Run Length	7620	mm
Panel Height	1800	mm
Bay Width	1780	mm
Distribution	count
Post Width	120	mm
Post Depth	124	mm
gravelBoardHeight	140	mm
Post Height	2100	mm
Finish	white
slotDepth	25	mm
panelWidthMin	400	mm
span	sizeX - postWidth	mm
nominalPitch	distribution == 'distance' ? bayWidth : bayWidth + postWidth	mm
bayCount	Math.max(1, Math.ceil(span / nominalPitch - 1e-9))
lastBay	span - (bayCount - 1) * nominalPitch	mm
merged	distribution != 'count' && bayCount > 1 && lastBay < panelWidthMin + postWidth - 2 * (slotDepth)
secondGroup	distribution == 'count' ? 0 : merged ? 2 : 1
firstGroup	bayCount - secondGroup
firstPitch	distribution == 'count' ? span / bayCount : nominalPitch	mm
secondPitch	distribution == 'count' ? firstPitch : merged ? (nominalPitch + lastBay) / 2 : lastBay	mm