Can I build a deck without a contractor?

Yes, you can absolutely build a deck yourself in Ottawa, but you'll still need to follow the same permit and inspection requirements as if you hired a contractor.

Here's what you need to know for DIY deck construction in Ottawa:

Permit Requirements

The City of Ottawa requires building permits for most decks, regardless of who builds them. You'll need a permit if your deck is:

• More than 24 inches (600mm) above grade


• Attached to your house


• Over certain square footage limits

Simple ground-level decks under 24 inches may not require permits, but it's worth calling Ottawa Building Code Services at 613-580-2424 to confirm your specific situation.

Getting Your Permit as a Homeowner

As the homeowner, you can apply for the building permit yourself through ottawa.ca/building. You'll need to submit:

• Completed application form


• Detailed construction drawings showing dimensions, materials, and connection details


• Site plan showing setbacks from property lines


• Permit fee (typically $200-400 depending on deck size)

The permit process usually takes 10-15 business days for straightforward deck applications.

What You Need to Know

Building a deck requires understanding the Ontario Building Code requirements for:

• Proper footings and foundation depth (below frost line - 4 feet in Ottawa)


• Structural connections and hardware specifications


• Railing height and spacing requirements (42" high, balusters no more than 4" apart)


• Beam sizing and joist spacing for your specific span


• Proper flashing and weatherproofing where the deck attaches to your house

Inspections Required

Even as a DIY builder, you'll need City of Ottawa inspections at key stages:

• Footing inspection before concrete is poured


• Framing inspection before decking is installed


• Final inspection before occupancy

You must schedule these through the city and cannot proceed to the next stage without approval.

Consider the Complexity

While legally you can build your own deck, consider whether you have the skills for:

• Reading and creating technical drawings that meet code


• Proper structural calculations for load-bearing requirements


• Using specialized tools and hardware


• Ensuring weatherproof connections to your house structure

Electrical Considerations

If you're adding lighting or outlets to your deck, remember that all electrical work in Ontario requires ESA permits and inspections. You can do your own electrical work as a homeowner, but you must pull the proper ESA permits and have the work inspected. Check esasafe.com for requirements.

When to Reconsider

Many Ottawa homeowners start DIY deck projects but end up hiring contractors when they realize the complexity of code compliance, structural requirements, or permit drawings. There's no shame in getting quotes from licensed contractors - it might save time and ensure everything meets code the first time.

For specific technical questions about deck construction methods, you'll want to consult building resources focused on construction techniques. Here at OCN, we help you navigate the permit process and contractor hiring - whether you're doing it yourself or finding the right professional for the job.