
359,90 zł

A professional system for the concealed installation of decking boards – made in Poland. Designed for the durable and aesthetically pleasing connection of decking boards to joists. It ensures a concealed installation, high durability, a stable connection and a perfect appearance for your decking, with no visible screws or damage to the surface of the boards.
✅ proper ventilation of decking boards,
✅ maintenance of the correct expansion gap,
✅ durable and invisible connection of boards to joists,
✅ no damage to the board surface,
✅ no cracks or damage to the wood,
✅ simple and intuitive installation,
✅ significant savings in labour time.

✅ a modern and attractive appearance for your decking,
✅ a durable and stable connection,
✅ proper ventilation of the boards and joists,
✅ reduced installation time,
✅ ease and comfort of work

❌ visible joints on the surface of the boards
❌ damage to the wood’s protective coating
❌ protruding installation elements
❌ unsightly cracks after years of use

By choosing the SIMPLEFIX DECK LINE concealed decking installation system, you are investing in durability, aesthetics and trouble-free use of your decking for many years to come. The ideal solution for those who value reliability and a professional finish.

Step 1 – Installing the spacer pads
Attach the plastic spacer pads to the underside of the decking board using the 4×20 mm screws included in the kit.
The spacers are installed upside down, each time positioning them against the side edge of the board so that the spacer rests directly against the edge of the board, ensuring the correct expansion gap.
The spacers should be fixed on both sides of the board, offset by 20 mm from each other.
Step 2 – Fixing the board to the joists
Turn the board with the spacers fitted over and place it on the prepared supporting structure – the joists.
Once the board is correctly positioned, secure it to the joists using the 4×35 mm screws included in the kit.
Step 3 – Installing the next board
The next decking board, with spacers fitted as per Step 1, should be pushed up against the previously fixed board.
As you slide the board into place, the spacers on the new board should slide under the board already in place until the expansion gap of the spacer rests against its edge, ensuring an even gap between the boards.
Step 4 – Final fixing of the board
Once the board is correctly positioned, secure the protruding part of the spacer on the opposite side to the joists using 4×35 mm screws.
Repeat these steps for the subsequent boards until the entire decking surface is complete.
IMPORTANT
When installing the first board directly against the wall, or the last board at the end of the decking, first attach the spacer to the joist – upside down – and then tighten it to the board from below using screws and a flexible screwdriver bit.

✅500 washers packed in a plastic bucket
✅1,000 white electro-galvanised 4×20 TX-20 screws
✅500 white electro-galvanised 4×35 TX-20 screws
✅1 TX20 bit
✅ wooden boards
✅ composite boards – solid.
✔️ on wooden joists
✔️ on aluminium joists (requires different screws)
✔️ directly to a concrete substrate (requires different screws)
✅ Attractive appearance
✅ Durable connection
✅ Ventilation for both boards and joists
✅ Time saved
✅ Easy to install
Shipping and Processing Times
Orders are processed within 24-48 hours of receiving payment (business days). Products are shipped via trusted courier companies (e.g., DPD, InPost, GLS), ensuring fast and safe delivery throughout Poland and the European Union. Shipping costs are visible in the shopping cart before placing your order.
Shipment Tracking
After your package has been shipped, you will receive a tracking number, allowing you to track the delivery status. You'll find the tracking link in your email and in your customer account (if you have an account with us).
Compliance with the GPSR Regulation (EU 2023/988)
We ensure that all our products meet the current requirements of Regulation (EU) 2023/988 of the European Parliament and of the Council (GPSR). This means that:
Each product has full identification data (product code, batch, EAN), we provide access to instructions for use, information on ingredients, and operating recommendations, we maintain internal safety procedures, and we respond to any customer complaints. If you have any questions about product safety or wish to report a problem, please contact our customer service department.
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