The above measurements are a basic guide only, refer to the TuffBlock installation guide and your material supplier to ensure correct spacing is maintained for structural integrity. As an example, a low level 3m x 3m deck would require bearers to be supported say every 1.5m, bearers would be spaced every 1.5m to support the joists, so 3 x TuffBlocks per bearer, 3 x bearers = 9 x TuffBlocks. Bigfoot Foundation System requirements for decks as per CCMC 12839. it is recommended that some decking timber be spaced at 450mm centres, it is always best to check with your timber/material supplier for material specific recommendations).Īs an example, a low level deck 3m x 3m would require 21 TuffBlocks for the above configuration – that is 3 x TuffBlocks per 3m joist, 7 x joists spaced 450mm apart.If you intend on using bearers on top of TuffBlocks, joists on top of bearers, and then decking or finishing material/sheeting – less TuffBlocks will be required. DECKS AND LANDINGS (NOT FLOATING) BUILDING GUIDELINES. Joists will need to be spaced at a distance appropriate to the finishing material (e.g. we have a range of Indoor outdoor decks and attics solutions and also staircases and handrails with solid wood. As a general rule if you are supporting joists directly on TuffBlocks, you will need to support joists with a TuffBlock at 1.5m intervals. Wooden Flooring Methods : Country Floors Trading Colombo We use tongue and grove parquet flooring methods. This obviously depends on the type and size of the project you are building. Large decks would require caution not to exceed TB's load limits, but with appropriate design they can be the solution for decks up to about 16 x 16 and be incorporated in the design of larger, more traditionally supported decks, for example for changing levels.
With TuffBlock the structure can be easily modified or even removed in the future without permanent footings to deal with. In retrospect the hardest part of this project was finding the PT lumber I needed. Description Warranty Information Instant Foundation System by TuffBlock Highly-engineered concrete block replacement The average deck is 12 x 16 (20 TuffBlocks are needed for a deck this size) Using America’s most trusted floating foundation system for over 35 years An individual TuffBlock can support over 1,700 lbs. Using this method each joist had to be leveled from the fixed height of the porch deck, which is where the built in flexibility of TuffBlock to accommodate a 4x4 post came into play. Using span tables and TuffBlock's own recommendations I used a pair of blocks to provide ground support to each joist supporting the rim by short cantilevers. The structure would have been designed differently using traditional footings to minimize digging and leveling concrete piers. Last year my Covid project was to enlarge our outdoor living space, covering an existing patio and raising it with a 10' x 12' deck to match the height of an existing porch. The time and labor savings over alternative footing methods was very welcome. I had concerns about frost heaving causing movement and distortion but after three New England winters have detected none. I first used Tuff Blocks using them to build a small (6' square) deck to serve as a step up to an entry door.
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