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Our RIO GRANDE: 12' Octagonal Treehouse Kit includes the specialty hardware to build a perfect octagonal treehouse. The structure is supported to the tree with 2 main supporting bolts and 6 knee braces. This kit supports this plan (sold separately): THE RIO GRANDE PLAN This hardware kit will support a platform or house with dimensions up to 12’x12’ octagon (119.25 square feet) KIT INCLUDES: 2 - TAB 3x9 Bolts w/nuts (Options for Powder Coated and Non-Powder Coated) 2 - 1-1/4" Pipe Brackets 8 - 1-1/4" Single Knee Brace Brackets 8 - 1-1/4" x 8" Galvanized Lag Bolts 12 - 5/8" Carriage Bolts w/flat washers, lock washers, and nuts. NOTE: The number of supports on platforms will vary depending on the size of your kit. Purchasing our hardware in a kit SAVES YOU 5% vs purchasing pieces individually. You're saving $22 purchasing this hardware in a kit!
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2026
$1,486.75