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14 11 2025

How to Assemble Your Snowdon Timber Decking Kit – Step-by-Step DIY Guide

Transform your garden into a beautiful outdoor space with the Snowdon Timber Decking Kit.

Designed for easy assembly, this kit includes everything you need to build a sturdy, weather-resistant deck that’s perfect for relaxing or entertaining outdoors.


Follow this step-by-step guide to achieve a professional finish in just a few hours.

Kit Overview

Approximate finished size: 2400 × 2400 mm

Estimated build time: 1–2 hours (recommended for two people)

  • Treated Decking Boards

  • Treated CLS decking Joists

  • Decking Screws

  • Frame Screws

  • Weed Control Membrane

Treated Timber raised sleepers

All components are pre-cut and ready to assemble — making this a great project for both beginners and experienced DIYers.

Tools You'll Need

To assemble your decking kit, prepare the following tools:

  • Drill or Screwdriver

  • Tape Measure

  • Safety Goggles

  • Eye Protection

  • Spirit Level

Oak Boards untreated timber

Step 1: Prepare the Ground

Choose a flat and stable area for your deck. Clear away any grass, stones, or debris so the surface is clean and even.

Lay out the weed control membrane supplied in your kit, cutting it to fit the full area. Overlap any joins by at least 100 mm and secure the edges with garden pegs, small timber offcuts, or stones.

This membrane will prevent weeds from growing through your deck while allowing water to drain naturally.

Finally, check the ground is level using a spirit level before moving on.

Step 2: Build the Frame

Lay out the treated joists to form a rectangular frame. Fix the corners using the frame screws provided.

Add the remaining joists inside the frame, spacing them evenly apart to provide a strong base for your decking boards.

Step 3: Check the Level and Secure

Measure diagonally across the frame to ensure it’s square. Tighten all screws securely.

If the ground is uneven, use small timber blocks or spacers beneath the joists to level the frame.

Step 4: Lay the Decking Boards

Position the decking boards across the frame, leaving a small gap between each one to allow for natural expansion and drainage.

This spacing helps protect the wood and keeps your decking looking great for years.

Step 5: Fix the Boards

Secure each board with decking screws — two screws per joist for best results.

Pre-drill the holes if needed to prevent splitting and to achieve a neat, secure finish.

Step 6: Finishing Touches

Once all boards are installed, double-check that everything is straight, level, and evenly spaced.

Sweep away any sawdust or debris — your new deck is now ready to enjoy!

Maintenance Tips

To keep your decking looking its best:

Apply decking oil or wood stain once a year to protect against moisture and UV rays.

Sweep regularly to remove dirt and leaves.

Check and tighten any loose screws when needed.

Why Choose a Snowdon Timber Decking Kit?

Pre-cut and ready to build — no extra cutting or measuring required.

Pressure-treated timber — resists rot, decay, and weather damage.

Ideal for DIY projects — quick, simple, and great-looking results.

Build your dream outdoor space today with a Snowdon Timber Decking Kit.

Shop online or visit our Bangor or Mochdre sites to get started

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