What Is The Average Size Screen Room? (With Prices!)

A few times a day we’ll get a call that goes something like this :

Customer: “Hey there I’d like to get a lanai built”.

Us: “Awesome that sounds like something we do, but just to clarify, you’re looking for a solid roof lanai?”

Customer: “Yes that’s it”

Us: “Ok we call those screen rooms and we build them all the time.  What size are interested in?”

Customer: “the size ummm just an average size screen room”

So lets see what exactly average size.  We did some research on the last 50 screen rooms that we built, and found that the average size was around 270 sqft (footprint).  Of course there is more than one way to get to the 270 square foot such as a 10 x 27 or a 15 x 18, both of which have slightly different prices.  We decided to factor some ‘practicability’ into the equation of an average size screen room.  In most cases a 10′ projection is a bit too narrow for a patio table, and a 15′ project is a bit too much and doesn’t allow for good organization of the patio area.  So we rounded to a 12′ x 24.  That gives enough walk around room and some space to allow for doors to to open and close.  That is the size we start with when someone requests and average screen room.

How Much Does The Average 12′ x 24′ Screen Room Cost?

Great question.  Here’s the deal this price is based on the permit/siteplan requirements and structural engineering for your windzone, so there is no exact price (disclaimer: this pricing is based on today’s current pricing for a structure in un-incorporated lee county within 10 miles of our main facility.  No guarantee of price is made.  Please rely on your specific estimate).  Generally speaking this size of screen room would be in the $8500 – $10,000 range, excluding concrete.  With foundation work you could expect another $3,000 – 5,000.

Here’s What A 12′ x 24′ Looks Like:

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Is It Wood or Is It Aluminum?

Romano Patio wood finish end cuts.

Its got cut ends.  Its got a textured finish.  To the average passer by, its got the visual appeal & characteristics of classic wood.  Considering you know our name is a Gulf Coast Aluminum, a good guess would be…. aluminum.  And you would be right.  We now have the Romano Roof & Patio which looks like wood and gives our customers an alternative to traditional Patio’s and screen rooms.

Besides the fact that you get an awesome looking patio, lets take a look at the advantages of doing these patios out of aluminum, as opposed to wood.

  1. Termite Resistant.  This is rather simple.  Termites live in wood.  They need wood.  Termites cannot live in metal.  The Romano Patio is wood.
  2. Fire Resistant.  Wood burns and can be susceptible to catching/spreading fire.
  3. Warp & Crack Resistant.   Ever seen a wood structure in Florida?  After a few years of sun and salt, they dry out and become brittle.  Pieces of the wood flake awake.  The finish weathers.  Due to the properties of metal, this doesn’t happen to aluminum.

Discuss This Project With The Author In The Comments Below

Eureka! A Patio Roof That Doesn’t Look Like One

We build LOTS of  solid roof lanai’s here in Southwest Florida.  We call them as screen rooms.  We generally use a 3″ insulated composite roof, which is a step above  the economical grade rollform roof (thin sheet metal).  Occasionally though we get requests for something that doesn’t look like a ‘basic’ add on rood.  Something that […]

Why It Takes So Long To Get A Permit

Why It Takes So Long To Get A Permit (And What We Do About It)

One of the most frequent complaints we hear about other companies has to do with permits.  Here are a few examples of phone calls we have gotten from individuals who went with other contractors, but they were so frustrated they are calling us for help.  You can actually go poking around online and find MANY reviews reflecting similar scenarios dealing with our competitors.

They ____________ promised me 6 weeks until it was done, but we’re 12 weeks in and they still don’t even have the permit.


I gave them a deposit over 2 months ago and everytime I call them to check out in, no one has any clue what is going on.


They said the engineer needed to sign this.  Then a surveyor guy needed to do something.  Then they were waiting on an engineer again.  Now they can’t get ahold of anyone at the building department.

All these frustrations vented to us are generally followed by the question “can you guys just take over the project from them?”

So what is the problem with all other companies and permits?

Namely, organization.

Before the permit can even be applied for most project needed to ran through a survey company, and an engineering firm.  The surveying companies (even the best) are notoriously unorganized, and the engineers are notoriously unorganized.  On top of that, small screen enclosures are a lot less appealing (and lucrative) to engineers that large buildings.

After the surveyors and engineers, your project needs to go to he building department.  They’re all overworked, underpaid, and unorganized.

This means that your contractor needs be organized.  Most of the time, they’re not either.  In most cases there’s no management or organization.  Then, things become a mess.  The project gets forgotten about.  No one follows up with the surveyors daily.  No one follows up with the engineers daily.  Sometimes the contractor doesn’t know anyone inside the building department.  Even worse, the contractor just overlooks your projects and all the steps it takes.  

We pride ourselves on making your project headache free.  That applies as soon as you sign a contract and starts with our organization.  We give each project (permitted project) a dedicated project manager.  Behind the scenes e’ve got a 38 step project approval process, and a computer system to make sure all the steps are followed through dilligently.

Continue reading:  How We Get Your Permit Faster Than Anyone


Inspiration For Accessorizing Your New Lanai

Outdoor Chairs, Sofas, & Center Table

A lanai is best experienced with friends and family in the comfort of the outdoors while keeping the insects at bay. One of the most critical accessories you can add to your lanai are outdoors chairs and sofas. Weather it’s lounging out by the pool or socially gathered under the lanai, these pieces are a must own for any lanai. The MOST IMPORTANT factor when purchasing your furniture is that the cushions you are purchasing are solution-dyed acrylic. This means that your upholstery will be water resistant if caught in the middle of a rainstorm. Most cushions have a 100% polyester fill as well.

Patio With Furniture

This patio oasis is complete decor and accessories that will make you want to never go back inside. All of the accessories pictured here can be purchased on Amazon.


If your lanai has an undercover space a TV/entertainment system is a wonderful way to enjoy movies, music, and TV outside in the warmth of the Florida sun. Speaker systems can be easily installed and flat screen TVs can be easily mounted to the wall giving viewers a comfortable experience. This can be best enjoyed in conjunction with an outdoor sofa set and communal gathering table.

Hot Tub

Even in Florida, you like to relax in a bubbly Jacuzzi while the winter breeze flows through your lanai. Hot Tubs are yet another way to add diversity and relaxation to your lanai. Most companies can conveniently install hot tubs through the opening of your lanai doors. If not, the teams at Gulf Coast Aluminum can custom remove aluminum sections of the lanai so your hot tub can fit with ease.

Fire Pit

Nothing is more communal than a night around the fire. Fire pits are a great way to bring everyone together and will wow guests. Fire pits can be built into the pool or lanai system with matching paver or stonework.

Natural Plants

We are blessed to live in Florida where there is such a diversity of lush green plants everywhere around us. You can never get enough of these botanical wonders so why not include them in your lanai to give it a natural look. Many people immediately consider palms to add but be very careful of palms and other high growing plants, as they will likely outgrow the size of your lanai. It’s best to select low growing plants such as Aglaonemas, Cast iron plants, Star begonias, Spiral gingers, and Crossandras. The possibilities are endless and choosing the planters and pots can be a fun DIY project with endless possibilities.


A great accessory to add to the selected plants and lanai is specific lighting. There are great low cost LED lighting systems you can purchase and install around the perimeter of your enclosure. There are also great low-level spotlights that can be placed around the outside of the enclosure to enhance your surrounding plants at night. The correct string lights are a pleasant DIY lighting system that gives the enclosure a homey feel.

Project Review: Riverside on 3rd Floor Balcony

For this unique project Gulf Coast Aluminum had the privilege of building a custom screen enclosure on a third-floor balcony with a and aluminum rollform roof. The design included screen walls with Phifer 18/14 mesh and an aluminum roof the covered part of the deck. The design is optimal so that you could have a dry tables as well as a sun-tan area all free from bugs and insects which are likely to be heavy near the river.

Like all all of our projects at golf Coast aluminum this one started with the permit and custom engineering. The project was engineered to optimize visibility with as few upright Aluminum members as possible. The result was to open 14 foot wide spans across the front. Due to the height At which this project was built and local wind rating the engineering called for a large 2 x 8 self mating beam across the top and uprights containing 4 x 4’s adjoined to a 2 x 6 self mating beam.  The project also called for Blue-Tap Fasteners.

Once the permit was obtained construction was swiftly completed and I’m your couple days. And the structure past its final inspection with flying colors.  We took several pictures you can check out below.

Start To Finish — A Behind The Scenes look At A Screen Enclosure Project

As a project manager I see projects go from a simple idea and become a visually stunning new enclosure. A lot of customers don’t realize the amount of time and work that goes into everything in-between. This article is a project review showing the step-by-step process a typical new screen enclosure project consists of.  This article gives current or prospective clients an idea of what will transpire during your project with Gulf Coast Aluminum.

Beginning The Screen Enclosure Project

The Idea & Estimate (08/26/13): Customer called the Gulf Coast Aluminum office to schedule an estimate on building a new screen enclosure with matching pavers to his existing Lanai. The team gave customer a ballpark price using their TPI mapping software. Customer wanted to proceed with an in-person estimate with our project estimator. Our project estimator took accurate measurements and noted details for the screen enclosure including roof over hangs and options for matching pavers.

Agreement & Deposit (10/10/13): Customer signed agreement with a copy of Florida driver’s license. Standard deposit of $500 to start initial project. Customer also provided a boundary survey for permitting purposes. Projects are subject to survey charges if home-owner does not currently have one.

Submit Engineering Design (10/18/13): Project Manager drafted the layout of the structure and submitted it to our engineering firm.  All new construction projects from a lanai, carport, sunroom or pool cage.

Signed and Submitted NOC (10/21/13): Customer signed official notice of commencement with officially stamp from a licensed notary. Customer filed with the Lee County Clerk of Courts for a fee of $10.

Received Signed and Sealed Engineering (10/27/13): Received certified, signed, and sealed engineering meeting Florida Building Code (FBC) and Florida wind code specifications.

 Related Post: Corey’s 9 Details On Screen Enclosure Engineering








Submit Permit: (10/29/13) Each county is different for their permit application process. For this project a few things were required.

  • Signed and Sealed Engineering
  • Boundary Survey
  • Sketch of Site Plan
  • Recorded Notice of Commencement


Approved Permit (11/8/13): Permit was approved by the City of Bonita Springs. Project Manager attached permit package to Gulf Coast Aluminum sign in the front yard of customer’s house.


Site Prep & Deposit (11/14/13): As you have noticed the majority of the project timeline takes part before any tool has dug into the ground.  When we first break ground we require a 50% deposit on the project, which was collected the day of the site prep. At this point the Gulf Coast aluminum team went out and did a site prep for the job. They removed any small bushes that would be in the way of the new enclosure.

The crew capped the sprinkler system that would be below ground from the new enclosure.  The groundwork was all dug up in one day using a sod cutter and applying soil if necessary to level out the area.  This project required footers so the crew placed form boards around the perimeter and applied rebar along the middle sections as specified in the engineering


Lastly, the City of Bonita Springs requires a termite and bug spray on all foundations before the concrete spray. The bug treatment was applied and all was ready for the pre-concrete inspection.

Pre Inspection (11/18/13): An official City of Bonita Springs Building inspector went on site to inspect the area for a foundation inspection and ensure the work completed was on point before the project went on to the next phase of construction. The foundation inspection was approved.

Footers/ Concrete (11/25/13): This is one of the most important days of the project because there is really only one chance to pour concrete for footers and it must be a sunny day because rain will interfere with the setting process. A cement delivery truck arrived outside of the house and the GCA team ran a pumping hose along the side of the house to the site location in the back. The whole process took roughly 2 hours and the whole setting process takes a minimum of three days.

Installed Pavers (12/09/13): After the existing lanai pavers had been matched, our paver crew arrived on site. They then took two days to install the pavers to the existing pad around the concrete footers. The customer was pleased at the progress we had achieved and he really enjoyed seeing visual results at this stage of the project.

 Install Aluminum & Fasteners (12/12/13): Some sections of the enclosure that had been built in the shop were delivered on site along with materials for sections of the cage that needed to be built on site. The order itself consisted of various aluminum beams, Nylotec and Protec screws, and Phifer 18X14 screen.

Our team began assembling all of the aluminum posts and doors by installing them into the footer foundation. The screen enclosure aluminum frame was completely installed and ready for the final screening process.

Install Screen (12/13/13): The screening process is very fast to install. Typically our crews can rescreen an entire 2,000 square foot cage in one day. This project was no different and the screen was all installed making the project complete and ready for final inspection by the county.


Final Inspection (12/17/13): The project manager called in the final inspection and we passed with flying colors. The inspectors make sure that we abide to the engineering diagrams and follow the structural design exactly to code.

Final Payment & Customer Satisfaction (12/18/13): Our customer was very pleased with the speed and efficiency of his new screen enclosure and gave us full 10’s on his project survey. At this point he paid us the remainder of his balance and mentioned that he would certainly recommend us to any friends.