Most decks in Europe and North America are built from softwood, usually pressure-treated pine or spruce, because it is cheap and easy to find. Tropical hardwood decking costs more per board, but lasts much longer and feels very different underfoot. Comparing hardwood vs softwood decking is really a question of what you value more: the lowest price today, or the lowest cost and effort over the life of the deck.
In this guide we compare the two on lifespan, upfront cost, cost per year, strength, stability, maintenance, splinters, appearance and environmental impact. At Global Timber Trade Hub we supply tropical hardwood decking from Central Africa. We have tried to be fair to softwood too, because for some projects it is the sensible choice.
In short
- Treated softwood decks are cheaper upfront but often last 10–20 years.
- Dense tropical hardwood decks often last 25–40 years or more.
- Hardwood is harder, stiffer and more stable, with fewer splinters.
- Softwood needs regular staining or treatment to stay sound.
- Over the life of the deck, hardwood often costs less per year.
- Choose hardwood for heavy use, pools and long-life projects.
What counts as softwood decking?
Softwood decking usually means pressure-treated pine (such as Scots pine or southern yellow pine) or spruce, impregnated with preservatives to resist rot and insects. Other softwood options include larch, Douglas fir, Western red cedar, and thermally modified softwoods, which are heated to improve durability. These options vary a lot in price, durability and appearance.
What counts as hardwood decking?
Hardwood decking here means dense tropical species with natural durability, such as tali, okan, iroko, bilinga, doussie and padouk. These woods resist decay without chemicals because of natural compounds in their heartwood.
Quick comparison
| Factor | Tropical hardwood | Treated softwood |
|---|---|---|
| Typical lifespan | 25–40+ years | 10–20 years |
| Upfront cost | Higher | Lower |
| Hardness | High to very high | Low to medium |
| Stiffness and spans | High, longer spans | Lower, closer joists |
| Stability | Good to excellent | Moderate, prone to cupping |
| Splinters | Few in good species | Common as boards weather |
| Chemicals | None needed | Preservative treatment |
| Maintenance | Clean; oil optional | Clean; stain or treat regularly |
Lifespans are typical ranges; real life depends on species, treatment quality, design and climate.
Lifespan
Treated softwood decks often last 10 to 20 years, depending on treatment quality, climate and maintenance. Cut ends and drilled holes lose protection unless re-treated on site, and decay often starts there. Dense tropical hardwood decks often last 25 to 40 years or more, because the whole heartwood is naturally durable, including cut ends. On public boardwalks and marinas, the difference in replacement cycles can be large.
Upfront cost
Softwood is cheaper per square metre of decking, often by a wide margin. Dense African hardwoods such as tali and okan start from about $650 per m³ FOB, which is less than many people expect for a premium decking timber, but still more than treated pine. Hardwood also needs harder fixings and pre-drilling, which adds labour time. See our hardwood decking cost guide.
Cost per year
Divide the total cost of a deck, including boards, joists, fixings, labour and maintenance, by the years it lasts. A softwood deck that costs less but must be replaced after 15 years may cost more per year than a hardwood deck that lasts 35 years. On commercial and public projects, where labour and disruption are expensive, hardwood often wins on cost per year. On short-term projects, such as a rental or a house to be sold soon, softwood may be the better value.
Strength and spans
Dense hardwoods are much stiffer than softwoods. A 21–28 mm hardwood board can often span 400–600 mm between joists, while softwood boards of similar thickness usually need closer spacing. Hardwood also resists dents from furniture, heels and dropped objects much better. For heavy traffic, restaurants, hotels and public decks, hardwood’s strength is a clear advantage.
Stability
Softwood decking is prone to cupping, twisting and splitting as it wets and dries, especially with lower grades and wide boards. Many dense tropical hardwoods, especially iroko and doussie, are very stable, so boards stay flatter and gaps stay more even. This makes a hardwood deck look better for longer.
Splinters and barefoot comfort
Weathered softwood often develops raised grain and splinters, which is a problem around pools and for children. Good hardwood species, especially iroko and doussie, have fine, interlocked grain that resists splintering. For barefoot areas, hardwood is the better choice. See our best wood for pool deck guide.
Maintenance
Softwood decks usually need staining or treatment every one to three years to protect the wood and keep the colour. Hardwood decks only need cleaning if you accept a natural silver-grey; to keep the original colour, oil once or twice a year. Both need clear drainage and ventilation underneath.
Appearance
Softwood decking is pale yellow or green-brown from treatment, and often has knots. It is usually stained to a chosen colour. Hardwood has rich natural colours, from golden iroko and bright bilinga to red padouk and reddish-brown tali, with few knots. It can be oiled to keep the colour, or left to weather to an even grey. Many designers prefer the cleaner, more premium look of hardwood.
Chemicals and the environment
Treated softwood relies on preservatives that protect the wood but must be handled correctly, especially offcuts and waste. Durable hardwood needs no chemical treatment. Softwood comes from fast-growing plantations and forests, often local, which reduces transport. Tropical hardwood comes from natural forests, so legality and responsible management are essential. Ask for legal origin documents and certification for any timber. See our sustainability page.
Thermally modified and premium softwoods
Thermally modified softwoods and naturally durable softwoods such as larch and cedar sit between treated pine and tropical hardwood. They last longer than treated pine and need no chemicals, but they are softer than tropical hardwoods and dent more easily. They can be a good middle option for residential decks with light traffic.
Substructure
Many decks fail because the joists rot, not the boards. A hardwood deck on treated softwood joists may outlive its frame. For long-life decks, use durable hardwood joists, aluminium joists, or high-quality treated joists with protection tape on top. Keep joists off the ground and ensure airflow. Our hardwood beams guide covers structural sections.
When softwood makes sense
- Tight budgets where upfront cost matters most.
- Short-term projects, rentals or temporary decks.
- Low-traffic garden decks where some wear is acceptable.
- DIY projects where easy cutting and light weight help.
When hardwood makes sense
- Long-life homes and family decks.
- Pool decks, spas and barefoot areas.
- Restaurants, hotels and commercial terraces.
- Public boardwalks, marinas and bridges.
- Premium designs where looks and quality matter.
A worked example
Imagine a 40 m² family deck. Suppose the treated softwood boards cost a third of the price of tali boards, and the softwood deck lasts 15 years while the tali deck lasts 35. Over 35 years you would build the softwood deck more than twice, paying each time for boards, fixings, labour, skip hire and the days the garden is out of use, plus staining every couple of years in between. The tali deck costs more on day one, needs harder fixings and a little more labour, but then mostly needs cleaning. Put your own local prices into this simple sum and the answer for your project becomes clear. For many family homes and almost all commercial decks, the hardwood option wins over the long run.
Installation differences
Softwood is light, easy to cut and forgiving with screws, which makes it popular with DIY builders. Dense hardwood is heavier and harder: every screw hole must be pre-drilled and countersunk, saw blades should be carbide tipped, and boards are heavier to carry. Stainless steel screws or hidden clip systems are recommended for hardwood, partly because some species contain tannins that react with plain steel. Professional deck builders are used to this and factor it into their quotes. Ask your installer for experience with dense tropical species before you order.
Board sizes
Softwood decking is usually 28–32 mm thick and 120–145 mm wide. Hardwood decking is often thinner for the same span, typically 21–28 mm, because it is stiffer. Common hardwood widths are 90–145 mm, in random lengths from about 1.8 m. Smooth, fine-ribbed and grooved profiles are available.
Ordering hardwood decking
When you ask for a quote, give us the species, board thickness and width, profile, total deck area and delivery port. We will work out the volume, add a sensible allowance for cutting waste and quote FOB or CIF. Our export process page explains each step.
Common mistakes
- Comparing only upfront price: compare cost per year of service.
- Not treating cut ends of softwood: decay starts there.
- Hardwood boards on poor joists: the frame fails first.
- No pre-drilling in hardwood: screws snap and boards split.
Our honest advice
If budget is tight or the deck is short-term, treated softwood does the job. For homes you plan to keep, pool areas, commercial terraces and public spaces, dense tropical hardwood gives a stronger, more stable, splinter-resistant deck that often costs less per year. Pair it with a durable substructure to get the full benefit.
Sources
Related guides
- Hardwood vs composite decking
- Best hardwood for decking
- Ipe alternatives
- Bilinga vs iroko
- Heavy construction and marine timber
Frequently asked questions about hardwood vs softwood decking
How long does softwood decking last?
Often 10–20 years, depending on treatment, climate and maintenance.
How long does hardwood decking last?
Dense tropical hardwood decks often last 25–40 years or more.
Is hardwood decking worth the extra cost?
For long-life and high-use decks, it often costs less per year of service.
Does hardwood decking need treatment?
No chemical treatment is needed; oil only if you want to keep the colour.
Get a quote for hardwood decking
Send us your species, board size, profile and deck area through our quote form. We will reply with a firm price and shipping options.