Joint Spacer for Wooden Decks – 4 / 5 / 6 / 7 mm
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Bill of Materials
Description
🪵 Universal Joint Spacer for Wooden Decks – 4 / 4.5 / 6 / 7 mm
This practical joint spacer helps you maintain consistent and clean joint gaps when laying wooden or WPC deck boards.
The tool combines four different joint widths in a compact design – ideal depending on the wood type, moisture, and desired look.
📏 Included Joint Widths:
• 4 mm
• 4.5 mm
• 6 mm
• 7 mm
🌲 Which Joint for Which Wood?
🔹 4 mm
Ideal for very dimensionally stable and technically dried woods or WPC boards.
Typical application:
- WPC
- Thermowood
- Very dry stored Douglas fir
- Precisely planed hardwoods in covered areas
🔹 5 mm
Good all-round spacing for many native wood types with moderate swelling and shrinking behavior.
Typical application:
- Douglas fir
- Larch
- Pine
- Standard deck boards
🔹 6 mm
Recommended for woods that expand more or are exposed to higher moisture.
Typical application:
- Bangkirai
- Garapa
- Cumaru
- Fresher or not completely dried boards
🔹 7 mm
For woods that expand significantly, moist installation situations, or deliberately wide drainage gaps.
Typical application:
- Freshly installed wood
- Shady/wet decks
- Wide board widths
- Regions with high humidity
⚠️ Note:
The optimal joint width also depends on the following factors:
- Wood moisture during installation
- Board width
- Ventilation
- Weather conditions
- Screwing system
🖨️ Print notes:
- Printable without supports
- Print flat
- 3–4 perimeters recommended
- PETG or ASA recommended for outdoor use
Have fun laying your deck! 🪚
If you like the model, I'd appreciate a like, follow, or a make!
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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