How do you extend the height of a fence for privacy?

There are a few reasons why you may want to extend the height of your existing fence. The most common is to increase privacy from neighbors or from the street. A taller fence helps block views into your yard and home. Other reasons include keeping children and pets contained in the yard, deterring trespassers, and reducing noise.

Extending a fence typically involves adding boards, lattice, netting, or other materials to make it taller. This can be done by attaching extensions to the existing posts and framework or by replacing the entire fence with a new, taller one. Here are some quick answers to common questions about extending fence height:

How high should I make my privacy fence?

6 feet is usually sufficient for privacy from neighbors. For screening a busy road or other public area, 8 feet or more may be desired. Many local ordinances have limits on maximum allowed fence heights, so check your local codes first.

What is the easiest way to make a fence taller?

Lattice panels provide an easy way to add height. They come in standard sizes and can be attached to the top of the fence using screws or lattice clips. Fence slats can also readily be replaced with taller boards.

Can I just add a few fence boards to increase height?

Yes, you can add additional boards to make a fence taller, but the extended posts should be well secured. Adding 1-2 feet this way is not too difficult. Greater heights may require reinforcing posts.

How do I know if my fence posts can support more height?

Check if posts move at all when you push on the top of the fence. Re-securing loose posts in concrete or installing post bracing can often reinforce them enough for a few more feet. For major height increases, new, larger posts may be needed.

Should I replace my whole fence if I want it much taller?

It’s best to replace an entire fence if you are increasing the height significantly, such as going from 4 feet to 8 feet. The new posts and framework should be proportional for the taller height. Replacing also allows you to choose a different style if desired.

Height Extension Options

There are several good options to consider when looking to extend the height of your existing fence for added privacy:

Add Lattice

Lattice is an attractive and relatively inexpensive way to add height. Standard lattice panels are usually under 3 feet tall and can be stacked. Use exterior screws or lattice clips to attach them to the top of the fence frame. Paint or stain the lattice to match your fence.

Install Fence Slats

Replacing existing fence boards with taller slats or planks is often the simplest route. For wood fences, 1×6 inch boards can be ripped to size to replace shorter planks. Match the new wood to your existing fence style and color.

Attach Fence Toppers

Decorative fence toppers, caps, and extensions that attach to the top of posts are available. These come in styles like spirals, spear points, and woven patterns to add visual interest.

Add Windscreen or Netting

For a semi-transparent extension, wind screens and netting can be attached to the top of the fence. These maintain airflow while obscuring views and filtering noise. Opt for durable polyethylene or fiberglass materials.

Construct a Lattice Panel Frame

You can build your own lattice extension by constructing a frame that sits on top of the fence and attaching panels inside it. Use treated 4×4 posts with 2×4 framing. Paint or stain it to match.

Plant Tall Shrubs or Vines

Fast-growing bamboo, arborvitae, laurel hedges or climbing vines can provide natural-looking height extensions. Plan ahead, as most take a few years to reach desired maturity and fullness.

Height Extension Tips by Fence Type

The best way to extend different fence types varies:

Wooden Privacy Fences

Best options:	Extra slats, lattice, toppers
Considerations:	Match new wood, secure added height to posts

Chain Link Fences

Best options:	Slats, windscreen, removable netting
Considerations:	Weave extra mesh into chain link or use tension bands for netting

Vinyl Fences

Best options:	Lattice, prefab topper panels
Considerations:	Look for color match, don’t exceed weight limits

Ornamental Iron & Metal

Best options:	Matched metal panels, tubular extension inserts
Considerations:	Bolt securely to posts, check for added stress on metal

Picket Fences

Best options:	Extra pickets, removable lattice inserts
Considerations:	Avoid obstructing too much airflow and views

How to Add Height by Fence Section

Adding height in just one or two key sections can save cost and effort while still increasing privacy where it’s needed most. Here are some tips:

Extend the Backyard Fence

Focus on extending the fence height between neighboring backyards first, as this is where people spend time and want privacy. Leave other sections shorter if budget is limited.

Increase Side Yard Fencing

Boost height on side yard fence sections bordering a driveway, walkway, or adjacent home to block views and access. A 4-6 foot extension may be adequate.

Elevate Front Fencing Strategically

Maintain an inviting look from the street by keeping front fencing lower, and only increase small sections flanking the front door or patio.

Add a Taller Screening Section

Use a taller detached trellis, frame, or row of plants as a screen to hide areas like hot tubs while leaving most fencing lower.

Consider Neighbors’ Perspectives

Speak with neighbors before extending fences between properties to address concerns, ensure continued access, and coordinate height changes.

Project Planning Tips

Proper planning, preparation, and installation will ensure your fence height extension has a quality, lasting result:

Check Local Building Codes

Research and comply with local ordinances related to maximum fence heights allowed on your property line and any relevant permitting requirements.

Decide on Optimal Added Height

Consider how much higher your fence needs to be for desired privacy and noise screening without excessively blocking views and airflow.

Assess Your Existing Fence Condition

Check for posts that wobble or shift and repair as needed. Also look for rotted wood, rust, and damaged sections that should be replaced.

Measure Between Posts Precisely

Determine the exact dimension needed for any panels, frames, lattice sections, or other extensions to fit correctly between posts.

Reinforce Posts and Framework

Add side brackets, cross bracing, or larger posts and post caps if more support is needed for additional height.

Use Durable, Weather-Resistant Materials

Choose wood, lattice, netting, metals, and other extensions suitable for long-term outdoor exposure without early degradation.

Anchor All Attachments Securely

Use robust exterior screws, bolts, reinforced lattic clips, pole caps, and wire ties to keep all height extensions fixed firmly in place.

Conclusion

Adding height to an existing fence is an effective way to improve backyard privacy and security. With some planning and strategic construction, you can increase fence height while working within local regulations and maintaining neighborhood aesthetics. Extending a full fence or just key spans ensures you can enjoy your outdoor living space without unwanted eyes looking in.