How to build the ultimate octagon gazebos that nurture your spirit
作者: Sam Goeku
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阅读时间 11 min
Elevate your backyard into a personal retreat with SamsGazebos octagon gazebo kits
Image from SamsGazebos.com - Inside view of octagon gazebo with pagoda roof
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Introduction
The first gazebo I built was a hexagonal one, a six-sided structure. However, I wasn’t satisfied with it. Hexagon gazebos lack symmetry and don’t have the structural beauty I was seeking. Eventually, I lost interest in them and switched to building octagonal gazebos instead. It wasn’t because I was drawn to Feng Shui, where the octagon represents the unification of heaven and earth, prosperity, health, and rebirth. At 38, I had just completed my 40-foot sailboat with a cement hull after nine years of hard work and was searching for the next project in my life. I instinctively knew that octagonal gazebos were the right fit for me, and that’s how my journey into building octagon gazebos began.
In 1999, we landed a major contract with the U.S. Army in Washington, to build twenty 20-foot octagonal gazebos. While we had previously supplied gazebos for U.S. Army and U.S. Air Force bases locally, this was a game changer. It marked a turning point, pushing us to elevate our designs and recreate custom-quality gazebo kits that were optimized for easy assembly. I’ve always disliked products that come with an overwhelming number of parts to put together. Our approach is simple: fewer parts, easier assembly. Our gazebo kits can be put together in a day, with minimal pre-assembly required, making the process as streamlined and customer-friendly as possible.
Image from SamsGazebos.com - one of 20 ft. octagon gazebos installed at an U.S. army base in Washington
Image from SamsGazebos.com - assembling posts and corbels of 20 ft. octagon gazebo kit
Image from SamsGazebos.com - The notches on the headers secure the rafters in place
Image from SamsGazebos.com - assembling rafters of 22 ft. octagon gazebo joined at the peak
Image from SamsGazebos.com - The rafters of our octagon gazebo meet at the peak, literally support each other with few nails
Image from SamsGazebos.com - Tighten the fit of headers with a metal strapper and metal strap.
Image from SamsGazebos.com -inside view of 16 ft. octagon gazebo with Sunburst panels, steel columns, siding underlayment
Image from SamsGazebos.com - 16 ft. octagon gazebo with French ring arch panels, steel columns
Image from SamsGazebos.com -12 ft. octagon gazebo with Gingerbread country corbels
Image from SamsGazebos.com - 10 ft. octagon gazebo with Lattice arch panels
Image from SamsGazebos.com -inside view of 12 ft. octagon gazebo with country corbels, steel columns, 1x6 T&G underlayment for tile roof
Image from SamsGazebos.com - 10 ft. octagon gazebo with grid corbels,1x6 T&G underlayment for composite shingle pagoda roof
Image from SamsGazebos.com -16 ft. octagon gazebo with semi-circular arch panels, classic posts, railings, 2x6 T&G underlayment for tile roof
Image from SamsGazebo.com - 10 ft. octagon gazebo with bell roof, semi-circular arch panels, railings, contour benches, lattice backdrops
Image from SamsGazebos.com -inside view of 30 ft. octagon gazebo with coper pagoda roof, siding underlayment
Image from SamsGazebos.com - 30 ft. octagon gazebo with pagoda copper roof, cupola, steel columns, railings
Image from SamsGazebos.com - inside view of 22 ft. octagon gazebo with 1x6 T&G underlayment for pagoda copper roof
Image from SamsGazebos.com - 22 ft. octagon gazebo with pagoda copper roof, steel columns, railings, contour benches
Image from SamsGazebos.com -inside view of an octagon gazebo with 1 x 3 dome roof with cupola
Image from SamsGazebos.com - 12 ft. octagon gazebo with dome roof, cupola, Gothic lattice arch panels, classic posts
Image from SamsGazebos.com - 18 ft. octagon gazebo with circular headers
Image from SamsGazebos.com - octagon gazebo circular header closeup
Image from SamsGazebos.com - connecting circular headers for an octagon gazebo with sixteen rafters
Image from SamsGazebos.com - inside view of octagon gazebo with circular headers and rafters
Image from SamsGazebos.com - framings of octagon gazebo with sixteen-rafter dome roof
Image from SamsGazebos.com - adding 1x6 T &G underlayment on the framings of a dome gazebo
Image from SamsGazebos.com - building copper dome roof on the 1x6 T&G underlayment
Image from SamsGazebos.com - disassembled copper dome roof panels with collar beams and curved valley rafters
Image from SamsGazebos.com - 12 ft. octagon gazebo with sixteen rafters form a graceful inside view
Image from SamsGazebos.com - inside view of 16 ft. octagon gazebo with dome roof supported by sixteen rafters
Image from SamsGazebos.com - A metal strapper is an essential tool for securing the fit of headers, ensuring they stay intact and don't come apart.
Image from SamsGazebos.com - 12 ft. octagon gazebo with steel columns, country corbels, steel columns, 2x6 T&G underlayment for tile roof
Image from SamsGazebos.com - A template facilitates setting 8 post connectors for an octagon gazebo with wooden posts
Image from SamsGazebos.com - A template facilitates setting 32 anchor bolts for an octagon gazebo with steel posts
Image from SamsGazebos.com - details of octagon gazebo steel columns with wooden boxes at the bottom, which conceal steel plates and anchor bolts
Image from SamsGazebos.com - post boxes enhance the aesthetic appeal and encase the unsightly steel plates and anchor bolts as well as connecting with the railings
1. Building octagon gazebos where engineering and aesthetics come together
How I build octagon gazebos
Key elements of octagon gazebos
Rafters: In the early days, I built my gazebos the traditional way—using headers to sandwich the rafters, which were then joined at the top by a cupola. This method caused major assembly challenges, particularly at the top of the ladder, where the posts were unstable. Eventually, I started notching the rafters at top and bottom: one to hang the roof panels and the other to lock the rafters into the headers, making it a breeze to assemble large octagon gazebos.
Headers: Over time, I transitioned to double headers, which consist of a horizontal member sitting on a post and a vertical one where the rafters rest. The notches in the top headerssecurely catch the rafters at an angle, and the hanger bolts at the top of the posts made assembly much more manageable, even when working on tall ladders.
Rafter Joints at the Peak: I soon abandoned the cupola that previously held the rafters together, opting instead to have the rafters meet at the peak. This required cutting the rafters to precise lengths and angles. It’s highly technical work—knowing the precise length and angles is one thing, making such piece is another. There’s nothing more satisfying than seeing eight rafters of an octagonal gazebo perfectly join at the peak. I recall struggling to convince my structural engineer, Jack, how the rafters literally support each other at the peak. Ultimately, I added metal straps at the peak for structural purposes, which concealed the perfect rafter joinery. He was not always right, though. On one occasion, he specified 4x3’s for the valley rafters, but there wasn't enough space for that. He must have overlooked the fact that the notches on the rafters and headers fit closely together, which lowered the roof position. As a result, we had to use the same material sideways as 3x4’s for a better fit.
Posts: My engineer insisted on bulky wooden knee braces for gazebos with the wooden posts. This became an issue when a landscape architect specified an octagonal gazebo with wooden posts and decorative butterfly braces. To address this, we had to design decorative braces to conceal the unsightly big fat knee braces. While wooden posts were my initial preference, I soon realized that steel posts with anchor bolts eliminated the need for these big braces. This change was a huge relief, especially when we began fabricating large octagonal gazebo kits for other contractors to assemble on job sites and realized that they don't always install those big knee braces.
Templates: The idea for my templates came about by accident. A contractor needed to pour concrete and set post connectors, but I wasn’t available. Diagrams with dimensions alone weren’t enough to help others position the post connectors or anchor bolts correctly. So, I created templates to make the process easier for contractors. These templates helped them position everything correctly at level to each other, streamlining the octagon gazebo assemblyprocess.
Octagon Dome Gazebos with Sixteen Rafters: My engineer was initially skeptical of my design for a 16-rafter octagonal gazebo (O-16), due to its complex engineering requirements. The design featured sixteen rafters on eight one-eighth circular-shaped headers, supported by eight posts to create a graceful dome. He called for bulky wooden braces between the rafters and tons of metal hardware. Fortunately, most of these connectors were concealed inside the gazebo, so they didn’t interfere with the final appearance.
Metal Strapper: When building gazebos, I use a metal strap around the lower headers and tighten the fit with a metal strapper. This is a very useful tool, keeps the headers from falling apart while I assemble the rafters and roof panels. I leave the straps in place until the roof is finished.
Fasteners and metal connectors: My engineer often insists on adding metal connectors to simplify his calculations. While it’s not my preferred style to use visible metal hardware, I’m willing to incorporate them when absolutely necessary—typically for building permits or structural reasons.
Hidden joinery: The beauty of my gazebos goes beyond their distinctive designs, with the real magic found in the intricate hidden joinery and multi-angled cuts that set them apart. Take the post boxes, for example—the hidden joinery is designed to keep them secure over time, using techniques inspired by boat building. These careful, thoughtful details are what truly distinguish SamsGazebos products.
Octagon gazebos are symmetrical, allowing you to add 3, 5, 6, or 7 railings based on your preference. For optimal Feng Shui, avoid positioning entrances toward the northeast (Kimon: demon's gate) or southwest (Ura-Kimon: demon's exit), as these are considered danger zones.
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“Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do. If you haven’t found it yet, keep looking. Don’t settle. As with all matters of the heart, you’ll know when you find it.”
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Summary: Tips to create a retreat with an octagon gazebo
Key to success: Find a quality gazebo kit online that fits your lifestyle, taste, and budget.
The most critical: Start by building a level floor or adjusting the post length at the beginning.
Smart move: Consult a landscape professional.
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Conclusion
At SamsGazebos®, we provide a diverse range of handcrafted garden structures that are made in the USA, designed for coordination with your outdoor space. Please feel free to contact us for any questions about gazebos. info@samsgazebos.com All the images are provided by SamsGazebos®.
The author : Sam Goeku
Founder and designer of SamsGazebos®, is a fourth-generation boat builder from Okinawa, Japan. He has built four sailboats, including one with a cement hull and three with wooden hulls. Passionate about woodworking, he specializes in crafting high-quality garden structures incorporating unique hidden joinery techniques he developed from his boat-building. With decades of experience in crafting durable and elegant structures for homeowners, builders, and merchants, he shares his expertise on creating serene outdoor living.
Frequently Asked Questions
What is the most important to build a gazebo?
The most important factor in building a gazebo is ensuring a level foundation. If the ground isn’t perfectly level, you’ll need to adjust the length of the posts or make sure the post connectors are set level with one another.
Is building an octagon gazebo difficult?
Constructing a polygon-shaped gazebo can be challenging. We recommend starting with a square or rectangular gazebo first, as it involves simpler 90-degree angles. Many people struggle to complete the roof because the posts aren't set level with each other or aren't angled correctly, which prevents them from finishing the project. Consider investing a decent gazebo kit. SamsGazebos offers custom quality gazebo kits online. Visit our webstore: www.SamsGazebos.com
What’s the best way to ensure post connectors or anchor bolts are level with each other?
Order a template from SamsGazebos.com to help position and angle the post connectors correctly and level them. On the job site, we usually use a simple water level setup—just water, a clear tube, a wooden stick, and a bucket. Water is reliable and accurate, so no expensive tools are necessary.
Do I need a building permit for a gazebo?
Most cities require a building permit for any permanent structure larger than 120 square feet. Check with a building department in your area.
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