If you're designing a new screen enclosure and want it to feel taller and more open, you may be wondering: how much height can you actually add?
The answer depends on the design.
At Lafferty Aluminum & Screening, many composite transoms are approximately 2 feet or less, while certain composite configurations may reach around 4 feet. Screened transoms generally offer greater flexibility and may reach approximately 4 to 6 feet in some enclosure designs.
Those aren't standard heights that work for every home. The amount of height your screen enclosure can accommodate depends on its size, roof style, spans, transom material, supports, engineering requirements, and the architecture of your home.
Here's what those different height options can actually mean for your enclosure.
A transom can potentially add anywhere from a couple of feet to several feet of vertical height before the main roof structure begins.
As a general example:
The important distinction is that the transom height isn't necessarily the total height of the screen enclosure.
If your transom raises the walls another 2 feet, for example, the dome, gable, hip, mansard, or other roof structure can continue upward above that point.
That means even a 2-foot transom can make the overall enclosure feel significantly taller.
A transom is the raised vertical section between the main enclosure walls and the roof structure above them.
Without a transom, the enclosure typically transitions from the vertical walls directly into the roof.
With a transom, the walls effectively continue upward before that roof transition begins.
For example, if the primary walls of an enclosure are approximately 8 feet tall and you add a 2-foot transom, the upper roof structure could begin around 10 feet above the deck instead.
The roof can then continue upward from there.
This is why transoms are a useful design option for homeowners who want the enclosure to feel taller without increasing the footprint of the pool deck or patio.
For many homes, yes.
Two additional feet may not sound dramatic on paper, but extending that additional height around an entire screen enclosure changes its proportions considerably.
Instead of the roofline beginning relatively close to your outdoor furniture, pool deck, or seating area, it begins higher overhead.
That can help:
A 2-foot transom is particularly common with composite designs, although the appropriate height always depends on the project.
Potentially.
A 4-foot transom creates a much more substantial height increase and can dramatically change the appearance of the finished enclosure.
Whether 4 feet works depends partly on whether the transom is constructed with screen or insulated composite panels.
Screen maintains visibility, airflow, and natural light through the raised section.
Because the material remains visually open, taller screened transoms can blend naturally into large pool cages and elevated roof configurations.
Composite transoms use solid insulated roof panels rather than screen.
Certain projects may accommodate a composite transom around 4 feet, but increasing the height of a solid section can introduce additional structural requirements.
Depending on the engineering and configuration, vertical uprights or other support may be necessary.
This is why we evaluate the complete structure rather than simply selecting a transom height from a standard list.
Certain screened transom configurations may add approximately 4 to 6 feet of vertical height.
This can be possible in some larger enclosure designs, including certain dome-style configurations.
However, a 6-foot transom isn't something that can automatically be added to every screen enclosure.
The enclosure's overall dimensions, roof profile, spans, attachment points, wind loads, structural framing, and proportions all become increasingly important as additional height is introduced.
A taller enclosure has to be designed as a complete engineered structure.
The goal isn't necessarily to build the tallest transom possible. It's to determine how much height works structurally and looks proportional to the home.
Generally, screened transoms offer more flexibility when greater height is the primary goal.
A screened transom keeps the raised section open, allowing air, sunlight, and visibility to continue through the upper portion of the enclosure.
Depending on the project, screened transoms may reach approximately 4 to 6 feet.
A composite transom creates a solid raised section using insulated composite roof panels. Many composite transoms we build are approximately 2 feet or less, although taller designs may be possible.
Once a composite transom becomes taller, additional framing can sometimes be required.
For example, certain taller designs may require vertical uprights positioned approximately every 4 feet. Some roof-only configurations can require 45-degree knee braces to help control lateral movement.
The exact structural requirements are determined by the individual design and engineering.
Yes. Roof style can make a major difference.
A transom only determines where the main roof begins. The roof configuration above it contributes additional height of its own.
Dome-style enclosures naturally create additional overhead volume as the roof rises above the walls.
Certain dome configurations may also accommodate taller screened transoms, creating an especially open enclosure.
A gable roof rises toward a center peak, adding considerably more height through the middle of the enclosure.
Depending on the design and engineering, some composite gable configurations may also allow additional height toward the center.
Hip, mansard, hybrid, and custom enclosure designs each create different rooflines.
That's why two enclosures with the same transom height can still have very different overall heights.
The right height depends more on proportion than on choosing the largest measurement available.
For a smaller patio, adding 2 feet may provide exactly the amount of additional openness the space needs.
For a large pool deck or a home with a tall rear elevation, a 4-foot or taller screened transom may create better proportions.
When determining an appropriate height, we look at factors including:
There isn't one ideal screen enclosure height for every Florida home.
Not always.
More height can create a dramatic, open appearance, but the enclosure still needs to look proportional to the home and outdoor area.
An extremely tall enclosure over a small patio could feel oversized. A low enclosure surrounding a large pool deck or attached to a taller home could have the opposite problem.
The best design creates enough height to make the outdoor space feel open without making the enclosure look disconnected from the house.
That's why we don't approach a transom project by asking, “What's the maximum height we can build?”
We start with, “What height makes sense for this enclosure?”
Possibly, but modifying an existing pool cage is a different process from designing additional height into a new enclosure.
An existing screen enclosure was engineered around its original height, framing, footings, spans, connections, and roof configuration.
Increasing that height can change the structural loads throughout the enclosure.
Depending on the age, condition, and original design of the cage, modification may be possible or rebuilding portions of the enclosure may make more sense.
If your primary question is whether your existing pool cage can be raised, read our guide on Can You Make Your Pool Cage Taller?.
There isn't one universal maximum transom height.
Screened transoms may potentially reach approximately 4 to 6 feet in certain applications, while composite transoms are commonly shorter and can have different support requirements as their height increases.
Ultimately, the maximum practical height depends on the individual enclosure and its engineering.
This is why the most accurate answer comes from evaluating the actual property rather than relying on a general online measurement.
The best way to determine how tall your screen enclosure can be is to evaluate the proposed enclosure in relation to your home.
At Lafferty Aluminum & Screening, our sales team can look at the size of the outdoor space, home's architecture, roof configuration, desired enclosure style, and the way you plan to use the area.
From there, we can discuss different height options and determine whether a screened, composite, or hybrid transom design could work for your project.
Our team also handles the permitting and engineering process for our screen enclosure projects throughout Brevard and Indian River Counties.
Depending on the design, a transom may add approximately 2 feet to several feet of additional vertical height before the main roof begins. Some screened transoms may reach approximately 4 to 6 feet in certain applications.
Yes. Raising the roof transition by approximately 2 feet across an entire enclosure can noticeably increase its vertical volume and create a more open appearance.
Potentially. Certain screened and composite configurations may accommodate approximately 4 feet of transom height, depending on the structure, roof style, supports, and engineering.
Screened transoms generally provide greater flexibility for taller configurations. Composite transoms create a solid section and may require additional support as the height increases.
Yes. A transom raises the point where the primary roof structure begins. The roof then continues upward above the transom, so the total finished enclosure may be considerably taller than the transom measurement alone.
No. The appropriate height depends on the dimensions, roof style, spans, framing, attachment points, engineering, property conditions, and architecture of the home.
If you want a screen enclosure that feels taller, more spacious, and better proportioned to your home, a transom roofmay be one of the options worth considering.
Whether your project needs approximately 2 feet of additional height or could accommodate a taller screened configuration depends on the specific enclosure.
Lafferty Aluminum & Screening designs custom transom roofs, pool enclosures, screen enclosures, composite roofs, and hybrid outdoor living spaces throughout Brevard and Indian River Counties.
Call (321) 652-1078 to schedule a free estimate. One of our salesmen can evaluate your property, discuss the height and roof configurations available for your project, and provide a custom estimate based on your home.
We're excited to learn more about your needs and provide you with a personalized quote. Please fill out the form, and our team will get back to you with a detailed estimate to kickstart your project.
