Key Takeaways -

• DIY decking can save you significant labour costs, making it a budget-friendly option.
• Material choice greatly impacts costs, with softwood being affordable and composite offering long-term value.
• Proper planning and the right tools are essential for a successful DIY project.
• Decking enhances outdoor spaces and property value, offering both aesthetic and practical benefits.

Decking is a popular way to transform outdoor spaces in the UK, offering a practical and attractive area for enjoying the garden. Building your own decking can be a great way to save money, but it’s important to understand what affects the cost.

This article will break down the key factors to consider, including the materials you choose, the size of your deck, and whether you hire professionals or go the DIY route. It will also explain how a DIY approach can help you cut costs while creating a space that meets your needs.

Keep reading to learn how to plan your decking project, choose the best materials, and decide if building it yourself is the right choice. With the right approach, you can save money and create a deck you’ll love.

Key Factors Affecting Decking Costs

Type of Material

The material you choose plays a big role in the cost of decking. Softwood is the cheapest option, priced at £3–£6/m², while hardwood costs slightly more at £4–£10/m². Composite decking offers low maintenance for £8–£12/m², while PVC decking costs £5–£10/m² (1).

For premium aesthetics, IPE hardwood ranges from £8–£15/m². The price differences reflect durability, maintenance needs, and overall quality, so it’s important to match your budget to your decking goals.

Size and Scope

The size of your decking directly impacts cost. A 15m² deck made from softwood, costing £4/m², would total £60 for materials. Larger decks, or those using higher-end materials like composite or IPE hardwood, can exceed £1,500.

Planning the dimensions carefully and aligning them with material choices helps control expenses while achieving your desired result.

Labour Costs

Professional decking installation costs vary by complexity, ranging from £20/m² for basic jobs to £50/m² for high-end work. Labour costs for an average deck typically fall between £1,200 and £1,800.

DIY installation eliminates these costs entirely, offering substantial savings but requiring tools, effort, and time. For budget-conscious homeowners with DIY skills, the savings can be significant.

Material-Specific Cost Comparisons

Timber Decking

Soft wood decking is the most affordable option, costing £4–£10/m². However, it requires regular maintenance, like sealing and staining, to prevent decay. Hard wood decking is more expensive but offers premium aesthetics and durability with a natural finish.

While hardwood costs more upfront, it often lasts longer, making it a worthwhile investment for those seeking a high-end look.

Composite Decking

Composite decking, priced at £8–£12/m², is valued for its low-maintenance nature and durability. It resists rot, fading, and warping, reducing long-term upkeep costs. Composite decking boards mimic natural wood, making them ideal for homeowners seeking both style and practicality.

Accessories and Finishes

Accessories like railings, lighting, and anti-slip coatings can enhance your deck’s safety and aesthetics. Pre-treated materials provide added protection against the elements, while custom finishes like stains or paints elevate the design. These features add to the cost but increase functionality and longevity.

DIY Decking vs. Professional Installation

Benefits of DIY Decking

Building your own deck can save you substantial labour costs, as professional installation often ranges from £1,200 to £1,800. DIY gives you full control over the design and timeline, allowing for flexibility. Decking kits, priced around £300 for smaller projects, simplify the process and reduce expenses.

If you already have basic tools, you can save even more; if not, expect to spend £100–£150 on essential equipment like drills and saws.

When to Opt for Professional Installation

For complex designs or uneven surfaces, hiring a professional ensures proper alignment and structural integrity. Experts handle safety considerations, such as load-bearing calculations, reducing the risk of costly mistakes.

For intricate layouts or elevated decking, professional installation is often the best choice.

Time and Effort Considerations

DIY decking requires a significant time commitment and physical effort, especially for larger projects. Before starting, assess your skill level, availability, and willingness to dedicate several days to construction. If you’re confident in your abilities, DIY can be rewarding.

However, if time is limited or expertise is lacking, a professional may be the better option.

Comparison to Alternatives

Decking vs. Concrete Paving

Poured concrete costs between £13.95 and £18.59 per square metre, which is more expensive than softwood decking (£3–£6/m²) but comparable to composite decking (£8–£12/m²). While concrete often requires a higher initial investment than softwood, its longevity can make it more economical over time.

Decking materials like softwood and composite need regular maintenance, such as sealing and cleaning, to stay in good condition. Concrete, on the other hand, requires minimal upkeep, making it an attractive, low-maintenance alternative for many homeowners.

However, decking provides a warmer, more natural aesthetic.

Return on Investment (ROI)

Decking tends to offer better value in terms of ROI, with a potential 80% return compared to 30%–60% for concrete paving (2). Its visual appeal and versatility enhance a property’s curb appeal, making it a strong option for homeowners looking to add long-term value to their outdoor space.

Frequently Asked Questions

How Long Does a DIY Decking Project Usually Take?

A DIY decking project typically takes 2–5 days to complete, depending on the size, design, and your experience level. Smaller, straightforward decks can be finished over a weekend, while larger or more complex designs may require additional time.

Proper planning and having the right tools can significantly streamline the process.

Can Wooden Decking Be Installed on Uneven Ground?

Yes, wooden decking can be installed on uneven ground by using raised joists, adjustable supports, or a frame designed to level the structure. These solutions allow you to create a stable and even surface regardless of the terrain.

It's important to ensure proper foundation support to maintain the deck’s stability and longevity.

What’s the Lifespan of Different Decking Materials?

The lifespan of decking materials varies: softwood decking typically lasts 10–15 years with regular maintenance, while hardwood decking can last 20–30 years. Composite decking is the most durable option, often exceeding 25 years with minimal upkeep.

Proper care, such as cleaning and sealing, can help extend the life of your decking regardless of the material.

Conclusion

Building your own decking can be a cost-effective and rewarding way to transform your outdoor space. By understanding key factors like material costs, labour options, and maintenance needs, you can plan a project that suits your budget and style.

Whether you opt for softwood, composite, or hardwood, careful planning and execution will ensure a durable and attractive deck. With the right approach, DIY decking can save money while adding significant value and enjoyment to your home.

Sources -

1. https://lawnlove.com/blog/deck-cost/
2. https://pigardening.co.uk/does-a-deck-increase-the-value-of-your-home/