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Understanding the Costs of Decking Projects

  • Writer: Danny Smith
    Danny Smith
  • 2 days ago
  • 4 min read

Building a deck is a fantastic way to enhance your outdoor space. It adds value, creates a spot for relaxing, and can transform your garden or backyard. But before you start, it’s important to understand the average decking costs involved. Knowing what to expect helps you plan better and avoid surprises. I’ll walk you through the key factors that affect the price and share tips to get the best value for your money.


Breaking Down the Average Decking Costs


When thinking about decking, the first question is usually: how much will it cost? The answer depends on several things. Size, materials, design complexity, and labour all play a role. For a typical deck in Manchester, you might expect prices to range from £1,500 to £10,000 or more. Here’s why:


  • Size of the deck: Larger decks need more materials and time to build.

  • Material choice: Timber, composite, or hardwood all have different price points.

  • Labour and installation: Skilled workers charge for their time and expertise.

  • Additional features: Railings, lighting, or built-in seating add to the cost.


For example, a simple 12x12 ft timber deck might cost around £2,500, while a larger composite deck with railings and lighting could push past £7,000. It’s important to get a detailed quote that breaks down these elements.


If you want to explore more about decking costs, DJS Decking offers clear pricing and quality service in Manchester and the North West.


Eye-level view of a newly built wooden deck with simple railings
Simple wooden deck with railings

Choosing the Right Materials for Your Deck


Material choice is one of the biggest factors in average decking costs. Each option has pros and cons, and the price varies widely.


  • Pressure-treated softwood: This is the most affordable option. It’s easy to work with but needs regular maintenance like staining or sealing.

  • Hardwood: More expensive but very durable and naturally resistant to rot. It looks great but costs more upfront.

  • Composite decking: Made from recycled wood and plastic, it’s low maintenance and long-lasting. It’s pricier but saves money on upkeep.

  • PVC decking: The most expensive option, but it’s very durable and requires almost no maintenance.


For example, pressure-treated softwood might cost around £15 per square metre, while composite decking can be £50 or more per square metre. Think about how much time you want to spend maintaining your deck and how long you want it to last.


What is the 30cm rule for decking?


The 30cm rule is a simple guideline for spacing the joists under your deck. Joists are the horizontal supports that hold the decking boards. According to this rule, joists should be spaced no more than 30cm apart. This spacing helps ensure the deck is strong and stable.


Why does this matter? If joists are too far apart, the decking boards can sag or feel springy when you walk on them. This can lead to damage over time. Sticking to the 30cm rule means your deck will be safer and last longer.


If you’re hiring a professional, they will usually follow this rule automatically. But if you’re planning a DIY project, keep this spacing in mind when building the frame.


Close-up view of wooden deck joists spaced evenly
Evenly spaced wooden joists under a deck

Labour and Installation Costs Explained


Labour is a big part of the average decking costs. Installing a deck takes skill and time. Professionals handle everything from preparing the ground to fitting the boards and finishing touches.


Labour costs vary depending on the complexity of the design and the local market. In Manchester, expect to pay between £150 and £300 per day for a skilled decking installer. A simple deck might take 2-3 days, while a larger or more complex one could take a week or more.


Hiring a professional has benefits:


  • They know local building codes and safety standards.

  • They have the right tools and experience.

  • They can spot potential problems early.


If you want to save money, you could do some parts yourself, like clearing the area or staining the deck after installation. But for the best results, it’s worth investing in expert help.


Extra Features That Affect the Price


Adding extras to your deck can make it more enjoyable but will increase the average decking costs. Some popular options include:


  • Railings and balustrades: For safety and style.

  • Built-in seating or planters: Adds function and charm.

  • Lighting: Solar or electric lights create atmosphere and improve safety.

  • Pergolas or awnings: Provide shade and shelter.


Each of these features requires extra materials and labour. For example, railings might add £500 to £1,000 depending on the style and materials. Lighting can range from £100 for simple solar lights to several hundred pounds for wired systems.


Plan your budget carefully and decide which extras are must-haves and which can wait for a future upgrade.


Tips to Keep Your Decking Project on Budget


Decking projects can get expensive quickly. Here are some tips to keep costs manageable:


  1. Plan your size carefully - Bigger decks cost more. Think about how much space you really need.

  2. Choose materials wisely - Balance upfront cost with long-term maintenance.

  3. Get multiple quotes - Compare prices from different contractors.

  4. Consider DIY for simple tasks - Clearing the site or staining can save money.

  5. Avoid unnecessary extras - Stick to essentials first, add extras later.


By planning well and making smart choices, you can enjoy a beautiful deck without breaking the bank.


Why Choose Local Experts for Your Decking Project?


Working with a local company like DJS Decking in Manchester has many advantages. They understand the local climate and ground conditions. They know the best materials and designs for the area. Plus, they offer reliable service and support.


Choosing a trusted local contractor means your project will run smoothly. You’ll get expert advice and quality workmanship. This helps protect your investment and ensures your deck looks great for years.


If you want to learn more about decking options and get a free quote, check out decking costs with DJS Decking.



Building a deck is a great way to improve your outdoor living space. Understanding the average decking costs helps you plan and budget effectively. From materials to labour and extras, every choice affects the final price. Take your time, get good advice, and choose quality workmanship. Your new deck will be a place to enjoy for many years to come.

 
 
 

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