Slotted Post Fence

By Huu Khanh Nguyen · Updated October 28, 2026 · concrete, slotted post, gravel board, timber panel, precast, end post, corner post, intermediate post

A straight run of precast concrete slotted posts with a gravel board and, if wanted, a timber panel seated in the slots of every bay. Run length, post spacing and bay layout Post length and fence height End post or corner post at each end Concrete or timber gravel board Timber panel or none Post and panel finish

Parameters

Name	Default	Unit
Run Length	5672	mm
Depth	Math.max(startPost == 'corner' ? 130 : 105, endPost == 'corner' ? 130 : 105)	mm
Post Length	2440	mm
Fence Height	1940	mm
Board Height	150	mm
Bay Width	1864	mm
Distribution	count
Start Post	end
End Post	end
Post Finish	white
Panel Finish	white
startWidth	startPost == 'corner' ? 123 : 80	mm
endWidth	endPost == 'corner' ? 123 : 80	mm
span	sizeX - startWidth - endWidth + 80	mm
pitchNominal	distribution == 'gap' ? bayWidth + 80 : bayWidth	mm
bays	distribution == 'count' ? Math.max(1, Math.ceil(span / pitchNominal - 0.000001)) : ((span - Math.floor(span / pitchNominal + 0.000001) * pitchNominal) > 0.000001 ? Math.floor(span / pitchNominal + 0.000001) + 1 : Math.max(Math.floor(span / pitchNominal + 0.000001), 1))