Fence & gate services
Split Rail Fence Installation
Split rail is the fence this county already looks like — a rail system that walks rolling ground and old field lines instead of arguing with them.
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Split Rail Fences in Chester & Delaware County
Split rail is the native boundary fence of Brandywine country. Drive Unionville, Chadds Ford or the ground around Cheyney and it is what the fields are wearing: heavy posts, tapered rails, a line that rises and falls with the land. That last part is the practical reason it persists here rather than a nostalgic one. A panel fence is a rigid rectangle, so on rolling grade it either racks within a narrow tolerance or gets stepped, which leaves a stair-stepped top line and a triangular gap under every section. A rail fence has no panel. Each rail spans from post to post independently and sits at whatever angle those two posts give it, so a run can climb a rise, cross a swale and come back level without a single step in it. On the long frontages and open fields this territory is full of, that is the difference between a fence that looks like it belongs to the property and one that looks imported onto it.
Split rail and post-and-rail get used interchangeably and are not the same build. True split rail uses a round or half-round rail with tapered ends that drop into a mortise cut through the post. Nothing fastens the rail — it floats in the pocket, which is why the fence tolerates ground movement without splitting anything, and why it reads rustic rather than manufactured. Post-and-rail proper uses dimensional stock: a squared rail into a mortised post, or a board fastened to the face of the post. That gives a crisper, more formal line, and it is what most people are picturing when they say three-board. Rail count then sets the job. Two-rail is boundary marking and frontage definition, low and open and the cheapest run per foot. Three-rail is the county standard, with enough height and visual weight to read as a genuine property line and the usual base for anything that has to contain something. Four-rail closes the spacing further, which matters for smaller stock and gives the heavier line used along drives and estate frontage.
Post material decides how long the run lasts, because everything that kills a rail fence happens at ground level. Black locust is the traditional answer and among the most rot-resistant woods available in ground contact, which is why locust posts set generations ago are still standing on farms in this county. Pressure-treated pine rated for ground contact is the practical standard and performs well. Cedar sits between them — more stable and better looking above grade, less durable below it than locust. Vinyl rail removes maintenance completely and is chosen for decorative frontage, though it is engineered to release under impact rather than resist it, so it will not take livestock pressure on its own. Where a run has to contain something rather than mark a line, the fix is backing: welded wire or woven mesh fastened to the inside face of the rails, which keeps the open rural appearance from the road while closing the fence. And because a rail fence carries the tension of the whole run into its ends, corner, end and gate posts are set deeper and braced — the part of the job nobody sees when it has been done properly.
Options
Styles & Configurations
Two-rail split rail
Two round rails in mortised posts. Boundary marking and frontage definition — low, open and the most economical run per foot. On its own it stops nothing; it tells you where the line is, which on a large parcel is frequently the entire brief.
Three-rail split rail
The Chester County default. Enough height and weight to read as a real property line from the road, and the standard base for any run that will take welded wire or woven mesh backing.
Four-rail split rail
Tighter rail spacing and more height, used where smaller stock has to be held and along drives and estate frontage where the heavier line is the point.
Post-and-rail
Dimensional rail rather than round — squared stock into a mortised post, or board fastened to the post face. A crisper, more formal line, and the build most people mean when they say three-board.
Vinyl rail
Maintenance-free two, three or four-rail in white or tan. It holds its finish indefinitely and suits decorative frontage, but it releases under impact rather than resisting it, so it is not a containment fence by itself. Vinyl posts also take less lateral load than locust or pressure-treated, which shows up first at corners and gates.
What to expect
How the Installation Runs
- Line walk of the full run — corners, rises, low spots, gate positions and every place the rolling grade will change how the line reads. Long rail runs are set by eye as much as by string.
- Material specification: locust, pressure-treated, cedar or vinyl, and whether the run needs welded wire or woven mesh backing, because backing changes how the posts are loaded.
- PA One Call utility mark-out, filed before any post hole is dug. Long boundary runs cross more unmarked ground than a back-yard fence does — well lines, septic laterals and buried electric to outbuildings all turn up on rural parcels.
- Township permit and HOA architectural submission where they are required, including any frontage setback off the road right-of-way. We prepare and file both.
- Post setting — line posts spaced to the mortise spacing of the rail stock, with corner, end and gate posts set deeper and braced, since the tension of the run terminates on them.
- Rail installation, wire backing where it is specified, gate hanging, and a walk of the finished line with you.
Where we install it
Split Rail Fences By Town
Common questions
Split Rail Fences Questions
What is the difference between split rail and post-and-rail fence?
Split rail uses a round or half-round rail with tapered ends that drop into a mortise cut through the post. Nothing fastens the rail — it floats in the pocket, which is why the fence tolerates ground movement and reads rustic. Post-and-rail uses dimensional stock: a squared rail into a mortised post, or a board fastened to the face of the post. That produces a crisper, more formal line, and it is what most people are describing when they say three-board. Both demand the same discipline in the post work; the difference is the rail and the look.
Should I use two-rail, three-rail or four-rail?
It depends entirely on what the fence is doing. Two-rail marks a boundary or defines frontage — low, open, the cheapest run per foot, and no barrier to anything. Three-rail is the Chester County default: enough height and visual weight to read as a real property line, and the usual base when wire backing is added. Four-rail closes the spacing between rails, which matters for smaller stock, and gives the heavier line used along drives and estate frontage. Height rises with rail count, so a street-facing run may be limited by the township ordinance before rail count is even a choice.
Can wire be added to a split rail fence to contain a dog or livestock?
Yes, and it is one of the most common modifications on a rail run. Welded wire or woven mesh is fastened to the inside face of the rails, so the fence still reads as open rail from the road while the openings are closed. Mesh is chosen for what it is holding: tighter openings low down where a dog is the concern, and no-climb woven mesh where horses are involved, because a hoof can be trapped in a wide rectangular opening. Backing also adds wind and animal load to the posts, so corner and end bracing matters more, not less.
What is the best post material for a split rail fence?
Black locust is the traditional answer and among the most rot-resistant woods in ground contact, which is why locust posts set generations ago are still standing on farms in this county. Pressure-treated pine rated for ground contact is the practical standard and performs well for decades. Cedar is more stable and better looking above grade but less durable below it. Vinyl rail removes maintenance completely and suits decorative frontage, though it is engineered to release under impact rather than resist it, so it will not hold an animal that leans on it.
Does split rail work on a sloped or rolling yard?
It is the system that handles rolling grade best. Each rail spans between two posts independently and sits at whatever angle those posts give it, so the fence follows the ground continuously instead of stepping. Panel systems cannot do that — they rack only within a narrow tolerance and otherwise have to be stepped, leaving a stair-stepped top line and a triangular gap under each section. On long frontages and open fields, that continuous line is the reason split rail looks native here. Where wire backing is added, the ground contour matters more, because the mesh has to follow it too.
How wide can a split rail gate be?
The gate span is limited by the leaf, not by the fence. A single wood leaf much beyond four feet starts to sag under its own weight unless it is braced diagonally or built on a steel frame, so wider openings are normally hung as a double gate with a drop rod at the centre. Driveway openings are the usual case for that. Whatever the span, gate posts are set deeper than line posts and braced, because the entire swinging load and the tension of the run terminate on them.
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