A new deck can give you a comfortable spot for morning coffee, family meals or relaxed evenings outside. Choosing the material is often less straightforward, with natural timber and composite offering different benefits in appearance, cost and upkeep.
The best decking material for your Bromley garden depends on how you want to use the space and how much maintenance fits your routine. Considering these choices as part of your garden design helps you balance the finish you love with the practical demands of shade, summer sunshine and wet weather. If you’re planning a new decking project and would like expert guidance on the best option for your garden, call our team on 07477 798962 to discuss your ideas.
How Do the Three Decking Materials Compare?
The following board-only allowances provide a starting point for budgeting. They exclude the supporting frame, groundwork, fixings, steps and installation. Product specifications vary considerably, and specialist ranges can exceed these figures.
Pressure-Treated Softwood
Pine and spruce are widely available and generally offer the lowest upfront cost. Allow approximately £30–£60 per m² for boards, subject to grade and treatment.
Softwood can suit a modest budget, but needs cleaning and regular inspection. Oiling or staining helps retain colour and manage weathering; annual attention may be appropriate, depending on exposure and the coating instructions.
Pressure treatment protects against decay, while decorative finishes serve a different purpose. A lifespan of 10–15 years is sometimes quoted, but correctly specified timber can last longer. Choose components designed for at least 15 years’ service rather than accepting a short replacement cycle.
Hardwood
Ipe, Garapa, Cumaru and Tali offer distinctive grain and dense, durable boards. An indicative allowance is £80–£150 per m², although species, dimensions and sourcing can push prices higher.
Durable hardwood can provide 25–30 years or more of service when appropriately specified and installed. Natural durability does not eliminate cleaning, and retaining the original colour normally requires a suitable finish. Untreated surfaces gradually develop a silver-grey appearance.
Request FSC or PEFC-certified timber with supporting documentation. For FSC purchases, checking certification on sales documents helps establish that the particular timber supplied carries the claimed certification.
Composite
Many composite boards combine wood fibres with plastic, often including recycled material. Allow approximately £60–£120 per m² for conventional composite boards, with higher-priced alternatives outside this range.
They generally need washing rather than oiling or staining, and offer a more consistent manufactured appearance. Some ranges carry warranties of 25 years or longer, but coverage and installation conditions vary.
Not every composite has the same construction. Millboard, for example, uses a wood-free resin-based composition. Hollow boards also need product-specific support spacing; some are less rigid than solid alternatives.
Which Performs Best in Wet Weather and Summer Heat?
All three materials need drainage, ventilation and cleaning. Persistent moisture beneath the deck can damage its supporting structure, even when the surface boards resist decay.
Composite can reduce the need for regular oiling or staining in shaded gardens. However, moss, algae and organic deposits can still accumulate on the surface. Leaves and dirt retain moisture, so no material should be treated as maintenance-free or assumed to remain non-slip without routine cleaning.
Timber naturally responds to changing moisture levels. Correct gaps, suitable fixings and careful installation help accommodate movement. Integrating decking with surrounding hard landscaping also requires attention to water flow and adjoining levels.
For sunny gardens, compare lighter colours. Dark composites can become uncomfortable under bare feet, and timber can also get hot. “Warm underfoot” is not a guarantee of comfort in direct summer sun.
Families should consider splinters too. Timber can develop roughness or splits as it weathers; wood-plastic composite avoids timber splinters but still needs checks for damage and exposed fixings.
Are Grooved Boards or Anti-Slip Treatments Better?
Grooves do not automatically make decking less slippery. Their presence should never replace evidence of wet slip resistance.
Look for purpose-designed slip-resistant boards or treatments, particularly for steps, ramps and frequently wet routes. Suitable options include factory-applied aggregate strips or specialist coatings.
Ask how performance was tested and what maintenance preserves it. Smooth hardwood, grooved softwood and textured composite can all become slippery when contaminated. Cleaning remains essential regardless of the profile.
Compare the maintenance you will actually arrange over ten years, not the maintenance you hope the deck will never need.
What Will Your Deck Cost Over Ten Years?
Compare complete installed quotations first, then add cleaning products, finishes, labour and likely repairs. Board prices alone leave out much of the project.
For illustration, suppose softwood costs £800 less initially, but its additional coating and maintenance costs average £100 annually. Over ten years, that adds £1,000 and closes the initial gap. These are hypothetical figures, not installation prices or predicted savings.
Hardwood’s maintenance budget depends partly on whether you accept natural greying. Composite usually avoids refinishing costs, but cleaning and repairs remain relevant.
For decking beside garden rooms or other outdoor buildings, include thresholds, access and finishing details in each quotation so comparisons cover equivalent work.
Choose Decking That Fits Your Priorities
Balance upfront spending with appearance, cleaning and future upkeep. MK Landscapes supplies and installs softwood, hardwood and composite decking across Bromley, including Balau hardwood and Millboard options, with samples available during site visits. That makes it easier to compare the actual products alongside your garden’s conditions. To discuss a suitable specification and installation quotation, arrange a consultation or call 07477 798962.
Frequently Asked Questions
Can New Boards Go on an Existing Frame?
Possibly, but the frame needs inspection for decay, movement and inadequate support. Composite boards may require different joist spacing from the original timber. Reusing an unsuitable frame can shorten the deck’s life and affect warranty eligibility, despite saving money initially.
Does a Long Warranty Guarantee the Whole Deck?
No. A board warranty may cover specified structural defects while excluding installation, the supporting frame or particular appearance changes. Check registration deadlines, approved fixings, maintenance conditions and whether replacement labour is included before comparing warranty lengths.
Can Individual Boards Be Replaced Later?
Often, although access depends on the fixing system and surrounding construction. Replacement boards may differ in colour from weathered boards, and discontinued ranges can be difficult to match. Ask about repair access and consider retaining suitable spare boards.
