# What determines fence post and footing requirements? > Understand how fence height, ground conditions and gate loads affect posts and footings. Define support requirements before comparing installation scopes. URL: https://charlottesvillefence.com/guide/fence-posts-footings/ Fence height, infill, span, soil, wind exposure and gate loads determine the support requirements together. Product instructions and project conditions govern the installation method. A single depth copied from another fence is not a specification for every system or property. Charlottesville Fence & Gate helps property owners plan fence and gate work across the Charlottesville area, with installation managed through fully licensed and insured contractors. ## The decision to work through A line post and a gate support do not carry the same loads. Soil movement can change alignment; an inadequate support can allow a solid panel or gate to move even when the visible infill is sound. Frost-related conditions are one consideration, but they do not replace review of the system and ground. Do not use a city climate criterion as a universal fence depth or rating. ## Posts and footings carry the work Posts support the fence, but they do not all carry the same load. A line post supports the intervening run. A corner, end or gate post may also resist tension, a change of direction or the weight of a moving gate. Simply matching the appearance of the existing posts does not establish that they are suitable for the new system. Embedment and footing dimensions depend on the selected fence, soil, exposure and loads. A taller solid screen has different demands from an open rail boundary. Ground that looks firm at the surface can behave differently at the proposed footing. The specification should identify the installation method and the relevant product requirements. We work through those decisions with the installation contractor; a single universal hole depth is not an adequate plan for every property or gate. ## Screening changes views and structural loading Privacy depends on the pattern as well as the material. Closely arranged boards or solid infill reduce sight lines. Spaced pickets and shadowbox arrangements can leave angled views, particularly when someone stands near the fence. Compare the view from the patio, nearby windows and higher ground before deciding how much screening the design provides. Solid infill also changes the way wind acts on the fence. Adding slats, fabric or panels to an open system can increase the load on posts and connections. An existing fence that performs adequately without screening is not automatically suitable for the added surface. Choose a system designed for the intended arrangement and exposure. The estimate should describe the infill, supports and any transitions so the appearance decision is carried through into the installation specification. ## Bring the plan into focus [Get an Estimate](/contact/). Send the address, photos and the question you are trying to resolve. ## Specify the fabric, framework and tensioning Chain link is a system of mesh fabric supported by posts and rails or other specified members. Fabric gauge, mesh opening, coating and height affect what is being installed. Terminal posts at ends, corners and gates have different responsibilities from line posts supporting the intervening fabric. Tension bars, bands, ties and any specified tension wire connect and stabilize the fabric. Tension wire is not a substitute for sound posts or the rest of the required framework. An estimate should identify the complete system rather than offer a length of mesh with undefined supports. If privacy slats or screening are proposed, include them at the design stage because they change the wind exposure of the fence. For an existing post line, condition, alignment and compatibility must be assessed before reuse is included. ## Give the opening its own specification A gate is a moving assembly within a mostly stationary fence. Its frame, posts, hinges and latch need to work together at the chosen span. The usable opening is the clear space left for people or equipment after the supports and hardware are accounted for. It can differ from the nominal size used to describe the gate. Show what must pass through: a mower, wheelbarrow, trailer or everyday pedestrian route. Also show where the leaf can move and where it will rest when open. Slope, planting and parked vehicles can interfere even when the closed gate looks well positioned. A latch should be reachable by the intended user without making the enclosure awkward to secure. Plan these details with the fence so that a convenient opening is not squeezed into the only remaining space. ## Keep water and ground conditions in the plan A fence is not a retaining wall or a drainage system. Soil should not be piled against ordinary panels to close a gap, and a solid lower edge should not be used to dam a flow path without appropriate design. Tell us where water crosses the proposed route and show the area after wet weather if you have useful photographs. Persistent wetness can affect excavation, wood exposure and access for installation. A photograph of standing water does not establish the cause or specify a footing. The work may need a changed route, different materials or separate help with the drainage problem. Where a fence meets a retaining feature, the loads and attachment arrangement need their own review. Keep those responsibilities explicit so a fence estimate does not quietly become a promise to solve unrelated ground or wall movement. ## Concrete post foundations and support failure Concrete post setting is one installation method; the footing dimensions and ground conditions must suit the system. Concrete post foundations do not compensate automatically for inadequate embedment or poor support geometry. Improper post depth can contribute to instability, but leaning alone does not prove that depth is the cause. Soil movement, loading and deteriorated components must also be considered. Do not extrapolate one footing detail to every line post, terminal post and gate support. ## Questions before you decide ### What information is most useful at the start? The address, proposed route, intended purpose and photos help define the question. Add the product information or existing-fence details when you have them. ### Can a photograph settle the whole scope? Photos help with the first discussion, but they do not establish hidden conditions, boundaries or approval. Keep those questions separate from the appearance of the fence. ### What is the next step? Choose the outcome you need, identify the unresolved decisions and request an estimate with that information. The written scope should describe the system and work before installation. ## Related service and guides - [Fence Installation in Charlottesville, VA](/) - [Fence planning guide for the Charlottesville area](/guide/fence-planning/) - [Fence installation cost in the Charlottesville area](/guide/fence-installation-cost/) - [Survey before fence installation](/guide/property-lines-surveys/) - [What happens during fence installation](/guide/fence-installation-process/) [Get an Estimate](/contact/). Tell us where the property is and what needs to change.