Is It Too Late to Build a Deck This Year? What to Consider Before Fall

You planned to get to the deck earlier in the summer. Then weekends filled up, other projects came first, and suddenly fall does not feel very far away.

If a new deck, resurfacing project, or outdoor upgrade is still on your list, you may be wondering whether it makes more sense to start now or wait until next year.

If you're looking at the calendar and wondering whether you missed your chance to build a deck this year, not necessarily. But later in the summer, it helps to know what kind of project you're taking on, what it may cost, and what materials you'll need before you get too far into it.

A few decisions now can tell you whether it makes sense to get moving this season or give the project more time.

Start With the Kind of Deck Project You Have in Mind

A deck project does not always mean starting from the ground up. Before thinking about colours or finishes, get clear on what you actually want to change.

If you already have a deck, your project might be as simple as replacing worn boards or resurfacing an existing structure. If the framing is still sound and suitable for reuse, this can be a more focused project than a complete rebuild. Have the existing structure properly assessed before deciding to keep it.

Depending on what you already have, other deck ideas could be as simple as:

• Refreshing a small front porch or entry deck
• Creating a simple backyard sitting area
• Expanding an existing deck to make more room for dining or entertaining
• Updating the space around a pool or hot tub
• Building a ground-level or smaller deck that gives you a defined outdoor living area

If time or budget is tight, small deck ideas are worth a closer look too. You may not need a large build to create a better spot for sitting outside, eating together, or making more use of the backyard.

A smaller, well-planned project may make more sense than stretching the budget or timeline just to build something bigger.

Know the Scope Before You Start Spending

One of the easiest ways for a deck budget to get away from you is to start buying before you have a clear idea of what the project requires.

Before purchasing deck building materials, work through some basic questions:

• Are you building new or working with an existing structure?
• What size will the deck be?
• Will you need stairs or railings?
• Are you doing the work yourself or hiring a contractor?
• Are permits or municipal approvals required?
• What materials and quantities will you need?

This does not mean you need every detail figured out on your own. It simply gives you a clearer starting point.

Online tools such as a deck material calculator can help you get an initial idea of quantities, but measurements, layout, waste allowances, and product requirements can affect the final material list. For a larger purchase, it is worth confirming the numbers before ordering.

Think About the Whole Budget, Not Just the Deck Boards

The cost of a deck is more than the price of the surface material.

Deck boards may be the first number you look at, but they are not always the whole budget. Framing, fasteners, fascia, railings, stairs, footings, delivery, permits and labour may all need a place in the total.

Project type matters too. A deck replacement can involve different costs than a new ground-level build, while deck resurfacing may reduce the amount of material required if the existing structure can safely remain.

Pressure-treated wood usually has a lower upfront material cost, while composite decking typically costs more initially but requires less routine staining and sealing. We explored those differences more closely in our previous guide to composite decking, so if you are still comparing materials, that is a good place to start.

For this stage of the project, the goal is not necessarily to choose the cheapest option. It is to understand what you are paying for and choose an option that fits your budget, maintenance expectations, and how you want to use the space.

If Composite Is Already on Your List, Revisit the Numbers

If you have already been considering Trex decking or another composite option, take another look at the overall project rather than focusing only on the cost per board.

Think about:

• How much decking you actually need
• Whether you are resurfacing or building new
• What other materials are part of the project
• How much maintenance you want to take on in the years ahead
• What fits comfortably within your current budget

Trex composite decking can make sense for homeowners who value lower ongoing maintenance, but the right choice will still depend on the project and what matters most to you.

If upfront cost was the main reason you kept putting the decision off, getting current quantities and pricing may help you decide whether the project is more realistic than you thought.

Material Availability Can Affect the Plan

Finding a decking colour you like is one thing. Making sure enough material is available for the entire project is another.

Once you have an approximate quantity, check availability before making the final decision. This is especially important if your project requires matching fascia, specific board lengths, fasteners, or other components.

If you are replacing deck boards with composite, also make sure the existing framing and board layout are appropriate for the product you plan to use.

Checking quantities early can help you avoid choosing a product first and discovering later that there is not enough available to complete the project as planned.

Don't Forget the Calendar

By late summer, timing starts to matter more.

A small resurfacing job and a large new deck will have very different timelines. Permits, contractor availability, material sourcing, and the amount of work involved can all affect how quickly you can get started.

If you are hoping to make progress before fall, try to move the decision-making stage along now.

That does not mean rushing through the project. It means using the remaining season to answer the questions that have been keeping it on your list.

What are you building? What materials do you want? How much will you need? What will it cost?

Once those pieces are clearer, deciding whether to move ahead becomes much easier.

Get the Numbers Before You Decide

If the biggest question is budget, start with the numbers.

A deck estimate can help you understand current material costs and quantities before you commit to the project. It can also help identify where you may need to adjust the size, material choice, or scope to keep things within budget.

If you already have measurements or a materials list, North Dundas Building Supplies can help you put together a Project Estimate based on what your build requires.

You may find that the project is within reach as planned. Or you may decide that a smaller version makes more sense this year. Either way, you are making the decision with real information instead of guessing.

What If You Decide to Wait?

Sometimes waiting is the right choice.

If you still need plans, permits, structural work, contractor availability, or more room in the budget, giving the project more time may lead to a better result.

But there is a difference between intentionally planning for next season and putting the project off simply because you are not sure where to start.

Even if you decide not to build immediately, getting your measurements, material options, and budget sorted now gives you a much stronger starting point when you are ready.

Make the Most of the Decking Season You Have Left

If that deck project has been sitting on your list all summer, you do not need to solve everything at once. Start by narrowing down the project, figuring out what materials you need, and getting a realistic idea of the cost.

And if Trex decking is already on your shortlist, there is an extra reason to check your numbers now.

For a limited time, North Dundas Building Supplies is offering 15% off current in-stock Trex decking through August 31, 2026, while quantities last. The promotion applies to Trex that is currently in stock. Any additional quantities that need to be ordered are available at regular pricing.

Because the offer is tied to current inventory, it is worth confirming the amount you need and what is available before making your purchase.

Our team can help you check current Trex stock, work through your material quantities, and put together a Project Estimate so you can decide what makes sense for your space and budget.

Visit North Dundas Building Supplies in Winchester or request a Project Estimate online to get your deck project moving.

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