You'll save by buying our hardware packages! Save 10% when you buy the full hardware kit for the Heavy-Duty Marblemount, compared to purchasing each piece individually.
The Heavy-Duty Marblemount is the ideal multi-purpose deck. Its open-air platform is perfect for soaking in the sunshine or hosting get-togethers outdoors (did someone say treetop dance party?!), and is loved by both children and adults. With its heavy-duty hardware, this design can bear weighty snow loads and can be modified for enclosure with walls.*
The Heavy-Duty Marblemount clocks in at 180 square feet and requires two TABs, four light wood struts, and eight simple corner brackets for support. The tree depicted in the plan set is a cedar with a 23-inch diameter. Don’t be deceived by the overall simplicity of the design: the single-tree element coupled with the degree of precision involved in the hardware installation gives this platform a four-out-of-five difficulty rating.**
Our designs are meant to be customized to your trees and lifestyle: we encourage you to make it your own! Treehouse-building is an organic process – our crew almost always innovates onsite with spontaneous tweaks to the original design. Stay flexible, get creative, and have fun – even (or especially) when you’re deep in head-scratching moments of treehouse troubleshooting. To the trees!
(2) SL Treehouse Attachment Bolts
(2) Super Static Uplift Arrestor
(4) Wood Strut - Light
(16) Simple Corner Bracket
(4) Joist Hold down
-Bits and Augers
(1) SL TAB Pilot Bit Combo
(1) 3/4" Pilot Bit Combo
(1) 1" x 18" Auger Bit
(1) 3/4" x 18" Auger Bit
- Bolts, Nuts, and Washers
(2) 1 1/4" SL Hex Nuts
(4) 1" x 12" Galvanized Lag Bolts
(4) 3/4" x 5" Galvanized Lag Bolts
(56) 3/4" x 5" Galvanized Hex Bolts w/ Nuts
(48) 3/4" Galvanized Flat Washers
(4) 3/4" x 2 1/2" Grade 8 Bolt
(4) 3/4" Nylon Lock Nuts
(4) 5/8" x 5" Galv. Lags
(8) 5/8" x 5" Galvanized Hex Bolts w/ Nuts and Washers
(8) #16 x 6" Construction Lags
*We recommend that you consult a structural engineer if you plan to build in a climate with heavy snow loads.
**Please be aware that you cannot put two TABS at the same level in a tree that is less than 16" in diameter.