Decking & Timber

• Timber decking:
  Pressure-treated boards with a traditional, natural appearance.
• Composite decking:
  Contemporary boards available in a selection of colours.
• Structural timber:
  Graded timber for suitable joists, frames and supporting structures.
• Decking accessories:
  Fixings, clips, support feet, fascias and finishing components.

• Timber decking:
  Offers natural grain and character. It can be stained or treated to
  achieve different appearances but requires ongoing maintenance.
• Composite decking:
  Provides a consistent contemporary finish and normally requires less
  routine maintenance than timber.

Consider your preferred appearance, budget, maintenance requirements
and the complete installation system before choosing.

Measure the complete area and decide which direction the boards will
run. Include steps, access points, doors, drains and any permanent
garden features in your plan.

Marking the proposed footprint on the ground can help you judge whether
the finished deck will provide enough room for furniture and movement.

Calculate the deck’s total surface area and compare it with the usable
width and length of the selected boards. Remember to include the
required expansion or drainage gaps between boards.

Allow additional material for cuts, board-end joints, steps, damaged
sections and future repairs. A scale drawing can help reduce waste.

The supporting frame must suit the deck’s size, height, loading and
ground conditions. Structural timber should be of the correct grade,
dimensions and treatment for its intended use.

Do not select joist sizes or spacing according to the decking boards
alone. Follow the board manufacturer’s installation requirements and
obtain professional structural advice when necessary.

Prepare a firm and stable base before building the subframe. Remove
unsuitable vegetation and plan how water will drain beneath and away
from the finished deck.

Suitable concrete supports or adjustable feet may be used in appropriate
designs to create a level frame. Supports must be positioned according
to the structural requirements of the project.

Decking needs suitable ventilation and drainage beneath the boards.
Avoid trapping the structure against wet ground or blocking the route
through which rainwater should escape.

Correct gaps allow drainage and accommodate movement in the boards.
Follow the manufacturer’s instructions, as the required spacing may
differ between timber and composite products.

Use fixings designed for the selected boards, supporting frame and
outdoor conditions. Timber decking may use suitable decking screws,
while composite systems can require manufacturer-approved clips.

Check the fixing position and required expansion gaps before
installation. Incompatible fixings may damage the boards or affect the
finished appearance.

Plan steps and visible edges at the beginning of the project. Matching
bullnose boards, fascia boards and trims can provide a cleaner finish
around suitable composite decks.

Supporting frames must be designed to carry steps and edge boards
securely rather than relying on decorative trims for structural
support.

Sweep away leaves and dirt regularly and clean the boards using methods
suitable for outdoor timber. Inspect the structure for loose fixings,
damaged boards and areas where water collects.

Timber naturally changes colour as it weathers. Apply compatible
decking treatments according to the product manufacturer’s preparation
and maintenance instructions.

Composite decking generally requires less maintenance than timber, but
it should still be cleaned periodically to remove dirt, leaves and
organic growth.

Use cleaning products and methods approved by the decking manufacturer.
Avoid harsh chemicals or tools that could damage the board surface.

Raised decks, steps and balustrades must be designed to support the
expected loads safely. Larger or elevated structures may require
professional design and confirmation of planning or building
requirements.

The property owner should check any applicable requirements before
construction begins.

Based in Stanstead Abbotts, 414 Fencing supplies decking boards,
structural timber and accessories throughout Harlow, Hertford,
Hertfordshire, Essex and North London.

Check board lengths, quantities and delivery access before placing
your order.