Terrace calculator
Terrace calculator and building on ground screws
Use our calculator to start your long-awaited deck project. Our calculator can be printed out and given directly to the hardware store, who will help you find the right items. Quick and easy! Calculate, buy and build.
How do you get started with your deck?
When you start building your new/first deck, there are a few things to consider first:
- Where should the terrace be
- How big should it be
- In which direction should the boards go (e.g. along the house wall)
- What type of wood should the terrace be made of
- How high should it be
Once you have these things in place, you can start building your deck.
Why you should build your deck on ground screws
Concrete has always been the norm when creating a foundation for a structure. But with ground screws, also known as screw foundations, it just gets easier. With ground screws
- Saving you money on leveling and land disposal
- No drying time
- Lower CO2 emissions
- You can always move a ground screw
Ground screws are therefore a much smarter solution as you can reuse the screws or add more if you want to expand in the future. In addition, there’s a huge time saving, which means you can get your deck built quickly and don’t have to spend time digging, leveling and letting the concrete dry. Simply screw the screw into the ground and build your deck right away.
What does the structure look like?
You usually need 5 things for a terrace.
- Boards
- Cops
- Beams
- Masonry paper
- Ground screws
The image shows the construction of a 1-layer deck with boards at the top, joists and our screws at the bottom.
To build a 2-layer deck, you need decking boards, joists, beams and our screws. If you want to prevent your wood from rotting, you can lay wallboard between the boards and joists to make your deck last longer.
Use the deck calculator
Once you’ve decided on the size of your deck and the types of boards, joists and beams you need, you can enter it in the calculator below.
After you have calculated your deck, you can download it as a PDF (it takes just 5 seconds) and print it. This means you can go directly to one of our retailers and buy everything you need.
Here you go, now you can build your wooden deck.
Fixed or extendable ground screws?
Lightweight screws
- The calculation assumes that the screw is installed at ground level.
- Low to high load-bearing capacity
- Used for decks up to a maximum of 10 cm above ground level
- Available in lengths from 60 to 120 cm in Ø21.3 (for M12 bolt) and Ø33.7 (for M20 bolt)
Fixed screws
- Used for terrace max. 10 cm above ground level
- Not adjustable if longer screw is needed
- Available in lengths 60 to 75cm, with U-80 or U-100 top
- 75 cm recommended
Extendable screws
- Used for terraces of different heights
- Adjustable to reach frost-free ground with extension
- Available in lengths 60 cm and 70 cm. Extension available in 25 cm and 50 cm.
- You need to buy screw tip, top and/or extension
Still unsure how to build your deck and how to install our screws?
Then check out this page to see how to install our ground screws or view our installation instructions.
Deck Calculator
The calculator is for guidance only; we take no responsibility for errors or omissions.
Ground Screw
Lightweight Ø33,7
Lightweight Ø21,3
DIY Fixed
DIY Extendable
Note! The model is not a perfect representation of reality. Therefore, focus on the results.
Our recommendations for tops
See our guide for terraces
See how to mount a BAYO.S ground screw with our hand tool or Gearbox.
