Composite vs Timber Decking in Kenya: Cost, Maintenance & Lifespan
Timber or composite? It is one of the first decisions to make when planning a deck in Kenya.
Timber is the original decking material. It is natural, attractive and difficult to replicate perfectly.
Composite decking takes a different approach. It combines natural fibre with polymer to create a board designed to retain a wood-like appearance while reducing many of timber's maintenance requirements.
Neither material is automatically right for every project. The better choice depends on cost, appearance, maintenance and where the deck will be installed.
What Is Timber Decking?
Timber decking consists of natural wood boards fitted to a supporting structure. Different timber species can behave very differently outdoors.
Important characteristics include:
density
natural durability
moisture content
treatment
stability
resistance to insects
surface finish
This is why comparing “timber” as if it were one product can be misleading. A premium hardwood deck and an inexpensive treated softwood deck are both timber, but they can differ substantially in cost, appearance and performance.
What Is Composite Decking?
Composite decking is an engineered material produced by combining plant fibre and plastic.
Many conventional WPC products use wood flour or wood fibre. We Do Bamboo uses locally sourced bamboo as the fibre component in our bamboo composite decking, which is manufactured at our production facility in Nairobi. The resulting boards are designed for exterior use and are available with consistent profiles, colours and surface finishes.
Composite vs Timber: Appearance
Timber
This is timber's greatest strength. Real wood has genuine grain, colour variation and texture. Each board is slightly different. Over time, timber also changes naturally with weather exposure. For architects and homeowners who specifically want an authentic natural material, that variation is often part of the appeal.
Composite
Composite aims for a more controlled appearance. Boards are manufactured to consistent dimensions, colour and finish. Modern surface treatments can create convincing wood-grain textures, but composite remains an engineered material rather than natural timber.
For larger commercial or hospitality projects, that consistency can be an advantage.
Winner: subjective.
Choose timber for natural variation. Choose composite for consistency.
Composite vs Timber: Maintenance
This is where the two materials differ significantly.
Timber Maintenance
Depending on the species and desired appearance, timber may require:
regular cleaning
sanding
oiling
staining
sealing
treatment
occasional board replacement
Outdoor timber will naturally weather. If you want it to maintain a particular colour or finish, maintenance becomes especially important.
Composite Maintenance
Composite decking does not require routine sanding, oiling or painting. Normal maintenance involves cleaning dirt, leaves and other surface contamination. This is particularly useful for commercial environments where maintenance creates not only a direct cost but also disruption.
Winner for lowest maintenance: composite
Composite vs Timber: Termites
Termites are an important consideration for building materials in parts of Kenya.
Timber
Susceptibility depends on the timber species and treatment. Correct material selection and proper treatment can greatly improve resistance. The substructure should also be considered, not just the visible decking boards.
Bamboo Composite
The bamboo fibre in our composite is encapsulated within an engineered polymer matrix and the product is designed to resist termite damage. That removes one of the maintenance concerns associated with untreated or vulnerable natural wood.
Winner for termite resistance: composite
Composite vs Timber: Rain and Moisture
Both materials can be used successfully outdoors when properly specified and installed.
Timber
Natural timber absorbs and releases moisture. Poor installation, inappropriate timber or inadequate maintenance can contribute to movement, cracking or distortion. Good ventilation and drainage are essential.
Composite
Composite absorbs considerably less moisture than natural timber and does not depend on periodic sealing. However, correct installation remains important.
Boards still need:
drainage
ventilation
correct joist spacing
expansion gaps
Composite is low-maintenance, not installation-proof.
Winner for moisture stability: composite
Composite vs Timber: Sun and Heat
Kenya's sun matters for both materials.
UV Exposure
Timber naturally changes colour with prolonged UV exposure unless maintained with suitable finishes. Quality composite decking uses UV stabilization to manage colour change. Neither should be expected to look completely untouched after years outdoors.
Heat
Any exposed outdoor surface can become hot in strong sunlight. Colour is particularly important. Darker boards generally absorb more heat than lighter colours, whether they are timber or composite. For pool areas and barefoot applications, lighter colours and shade can improve comfort.
Winner: no universal winner
Composite vs Timber: Splinters and Barefoot Use
Timber can eventually develop splinters as it ages, particularly when the surface becomes weathered or damaged. That can be managed through maintenance and sanding. Composite does not splinter in the same way as natural timber.
For:
pool decks
family homes
hotels
barefoot areas
this can be a meaningful advantage.
Winner for barefoot convenience: composite
Composite vs Timber: Cost
Price needs to be considered in two stages.
Initial Cost
Some timber options can have a lower initial cost than composite. Premium hardwoods can also cost considerably more. Because timber pricing depends heavily on species and specification, there is no useful single “timber decking price” that applies across Kenya. Bamboo composite decking from We Do Bamboo currently starts at KSh 5,485 per m² for decking materials.
Long-Term Cost
This is where the comparison changes.
Timber may require expenditure on:
coatings
sanding
labour
repair
treatment
board replacement
Composite avoids most finishing-related maintenance. For a residential deck this may simply mean less work. For a hotel or restaurant, it can also mean less downtime. The cheapest material on installation day is therefore not necessarily the lowest-cost material over ten or fifteen years.
Composite vs Timber: Lifespan
It is tempting to give one number for each material, but that would be misleading.
Timber lifespan depends greatly on:
species
treatment
construction
ventilation
moisture exposure
maintenance
A well-specified and properly maintained hardwood deck can last a very long time.
Likewise, composite quality varies significantly between manufacturers. The formulation, UV package, board structure and manufacturing process all matter.
Instead of buying purely on a claimed number of years, ask the supplier for:
technical specifications
installation requirements
intended application
warranty where applicable
replacement availability
Which Is Better Around a Swimming Pool?
Composite has several practical advantages around pools.
It:
does not splinter
requires no periodic oiling
tolerates repeated wetting
is easy to clean
But surface design matters.
Always check suitability for wet areas and make sure drainage is properly designed. Timber can also create a beautiful pool deck, particularly with the right species, but typically requires more ongoing care.
For an extended comparison of pool and other materials:
Which Is Better for Hotels and Lodges?
This is one area where lifecycle considerations become particularly important.
A hotel deck is not used like a private residential terrace.
It may experience:
high daily foot traffic
luggage
furniture movement
pool water
food and drink
cleaning chemicals
continuous guest visibility
Maintenance also has an operational cost.
Closing a section of decking to sand and refinish it can be inconvenient during busy periods.
Composite's low-maintenance characteristics can therefore be especially valuable for hospitality projects.
Timber, however, remains attractive for lodges where the use of authentic natural materials is central to the design concept.
Again, it comes down to priorities.
What About Sustainability?
This comparison is more complicated than saying “wood is natural” or “composite contains recycled material”.
Timber can be an excellent renewable material when responsibly sourced.
Its environmental performance depends on species, origin, forestry practices, transport and lifespan.
Composite combines natural fibre with polymer and cannot simply be evaluated in the same way as untreated wood.
At We Do Bamboo, we use locally sourced bamboo together with recycled plastic and manufacture the finished decking in Kenya.
For a project team looking at sustainability, the best approach is to consider the complete material supply chain rather than one headline claim.
Timber or Composite: Quick Decision Guide
Choose timber decking if:
genuine natural wood is essential
you value natural variation and ageing
you're comfortable with periodic maintenance
your preferred timber species is properly sourced and treated
Choose composite decking if:
low maintenance is a priority
you want consistent colour and dimensions
barefoot use is important
moisture or termites are concerns
the project has high foot traffic
reducing future refinishing is valuable
Frequently Asked Questions
Is composite decking better than wood?
Not in every respect. Timber provides an authentic natural material and unique appearance. Composite provides lower maintenance, greater consistency and resistance to several common outdoor maintenance issues.
Is composite decking more expensive than timber in Kenya?
It depends on the timber species. Some timber products are cheaper initially, while premium hardwoods can be more expensive. The long-term comparison should also include maintenance.
Does composite decking rot?
Composite does not rot in the same way as natural timber. Correct drainage and installation are nevertheless essential for the deck and its supporting structure.
Can termites eat composite decking?
Bamboo composite is engineered to resist termite attack. If timber is used in the substructure, that timber still needs to be appropriately selected and treated.
Does composite decking need painting?
No. Bamboo composite decking is supplied as a finished surface and does not need regular painting, staining or oiling.
Is timber decking still a good option in Kenya?
Absolutely. Properly selected, treated, installed and maintained timber can make an excellent deck. Composite is an alternative for projects where reduced maintenance and greater consistency are priorities.
See the Materials for Yourself
The difference between timber and composite is much easier to judge when you can actually see and feel the material.
We supply samples of our bamboo composite decking and can recommend different profiles based on the type of project.
