The beautifully handcrafted Octagonal Sunroom is designed to be customized. From roofing options, to diameter and height options to doors and flooring and just about any other option you can think of. If you can dream it, we can build it for you. Yes, any size. Yes, free nationwide shipping and we can also install for you if you don't want to tackle it. Each of these Sunrooms is a custom project. You will have an assigned in-house architect that will prepare your drawings and with your input we'll fine tune every detail so that you know your Sunroom will be exactly what you need.
Need more information: Shade Structure Checklist - From Design to Done
OCTAGONAL SUNROOM GAZEBO SPECIFICATIONS (PDF DOWNLOAD)
Specifications have the following sections, any of which you may go to directly by clicking on it:
DIMENSIONS & DRAWINGS




Dimensions Common to All
Walls are 7 feet tall with a standard roof overhang of 12 inches.
Gazebo Size | Inside Diameter Wall to Wall | Exterior Diameter Wall to Wall | Roof Diameter |
---|---|---|---|
8-Foot | 84" | 96" | 112" |
10-Foot | 108" | 120" | 136" |
12-Foot | 132" | 144" | 160" |
14-Foot | 156" | 168" | 184" |
16-Foot | 180" | 192" | 208" |
Note: Regal Sunroom Gazebo's are octagonal.
We can customize our gazebos to suit your needs. Just tell us what size and options you want. Prior to building any Gazebo, we provide our customers with detailed drawings based on their proposed features. Our drawing process allows you to review every detail, making the necessary adjustments before we begin building. Drawings are the best way to be sure that every detail has been considered so that your Gazebo is exactly what you dreamed of.
To build a custom gazebo on your land, we only need to know the desired diameter (wall to wall or point to point) to calculate the structure area. If you want to build in a fixed area, you will need to calculate the diameter (wall to wall or point to point).
This trigonometrical equation can help you calculate this dimension. See our example below.
Variables:
A | = | area |
L | = | Length of wall |
ap | = | distance from the center to the wall |
= | half distance from wall to wall | |
r | = | distance from the center to a point |
= | half distance from point to point | |
α | = | Central angle of an octagon |
N | = | Number of sides of the polygon, 8 for an octagon |
d | = | distance from wall to wall (a, b) |
= | inside diameter | |
D | = | distance point to point (A,B) |
= | outside diameter |
Equations:

For those of you nerds, here's the algebra to calculate the square footage of an octagon:

With the equation in its minimum expression, we proceed to calculate the necessary data for an Octagonal Gazebo of 120ft2. For that, we calculate the value of the variable "L" (our wall) to get the outside and inside diameter.

To conclude, for an area of 120ft2, you need an Octagonal Sunroom Gazebo with a 13ft outside Diameter, 12.03ft inside diameter, and walls with 4.98ft of length.
Assembly Instructions for: Octagonal Sunroom Gazebo
All You Need is a Few Tools and a Friend.
Assembly is best done by two people over a half to full day depending on size. Pergolas require a ratchet, wrench, hammer and ladder. Some assemblies may require a drill to attach the posts into concrete. As with all of our products, we preassemble pergolas in our shop to ensure everything fits together. All hardware is included with clearly labeled parts. We also include detailed step-by-step instructions.
Take a look below at our assembly instructions for specific details. If you'd like a concrete pour to hold the posts, your project will require an additional half day prior to assembly. Please complete the concrete pour a few days prior to assembly to allow the concrete to cure.
Installation Help.
Special skills are not required to re-assemble our pergolas. If you would like help, just let us know. We have our own team for installations in California, Nevada and Southern Arizona, and a network of local contractors we recommend for farther afield.
Care: Your Forever Redwood Furniture will last for decades in year-round weather without maintenance.
Depending on the wood grade you choose, you should expect your furniture to last 10-40 years without maintenance even in climates with harsh, year round conditions.
Being outside year-round is rough on all wood finishings. The surface absorbs UV rays and pollution, there is a constant variation in moisture and temperature, and oxidization occurs. Over the years, most woods degrade and decay, and the surface color will slowly fade towards a silver patina. This is not the case with Forever Redwood. The silver patina is surface deep (less than 1/64") and is not indicative of decay. Your set will last decades and will not compromised in any way by surface color changes. We keep our display items as is without refinishing as examples to show off the natural aging process (we like the patina!).
Although Forever Redwood is maintenance-free, we recommended that you take a few minutes as needed to clean by either hosing down and/or brushing/dusting away accumulated debris (no soap or chemicals needed). If you’d like to keep your set looking its best for decades, please go to: Care and Finish.