Knee Rail Fence

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Timber knee rail fence, also known as birdsmouth fencing and diamond rail fencing, is a low-cost and unobtrusive type of wooden rail fencing for boundary demarcation. Being low enough to step over, it provides no perimeter security function. We offer knee rail fencing in a variety of materials, but our timber knee rail fencing is particularly popular for use at schools, around car parks, alongside footpaths, and at sports fields and play areas. It acts as a strong deterrent to drivers who might otherwise stray from roadways and parking areas, as well as discouraging pedestrians from walking on planted borders or lawned areas.

Unlike other types, timber knee rail fencing benefits from a natural aesthetic that is often sought by architects and specifiers.

What are the key features of timber knee rail fencing?

Our standard timber knee rail fences are constructed on-site using 140 x 140 mm posts with birdsmouth tops that support 100 x 100 mm rails. Posts are usually secured in the ground using Postfix concrete and the horizontal rails are attached to the posts with galvanised steel birdsmouth straps and galvanised nails. Heights are normally either 450 or 600 mm and rail lengths are up to 2.4/1.8m.