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A 16×20 PVC deck with stairs and lighting in Markham is a big investment in your outdoor space. For 2025, prices usually fall between $18,000 and $32,000. The final number depends on which PVC brand you pick, your stair setup, and how fancy you want the lighting.
Most homeowners in Markham should plan for $22,000 to $28,000 for a finished 16×20 PVC deck with stairs and integrated lighting, installed by pros. That covers permits, site prep, the build itself, and final inspections. You end up with a deck that needs almost no maintenance and will outlast most other options.
PVC decking is all about low maintenance, but the sticker shock up front can be real. We’ve put in hundreds of these decks around the GTA, so we’ve seen what really drives the price and where you can tweak things to save a bit.
Key Takeaways
- A 16×20 PVC deck with stairs and lighting usually costs $22,000 to $28,000 in Markham, installed
- PVC costs more at the start, but you skip all the ongoing maintenance headaches for 25+ years
- Stairs, lighting, and trickier sites can tack on $3,000 to $8,000 above the base price
2025 Cost Breakdown for a 16×20 PVC Deck in Markham
A standard 16×20 PVC deck in Markham runs between $16,000 and $21,000 in 2025. Add stairs and lighting, and you’re looking at $18,500 to $24,500. With 320 square feet, you get enough room for most families without the price ballooning.
Average Total Project Cost
We’re seeing $50–$65 per square foot for 16×20 PVC decks in Markham this year. That puts the base deck at $16,000–$20,800 before any extras.
Here’s how the numbers usually shake out:
- Basic PVC deck: $16,000–$20,800
- Add stairs (one set): $1,200–$2,500
- Add lighting package: $800–$2,200
- Total with both: $17,000–$25,500
Most clients end up around $22,000 for a solid PVC deck with stairs and basic lighting. If you go for high-end railings or want multiple lighting zones, the price climbs.
PVC is pricier up front than composite, but it’s the toughest material out there. Honestly, once these decks go in, they’re almost indestructible.
What’s Included in the Price
The standard 16×20 PVC deck package comes with everything for a full install. That means all the framing, PVC boards, matching fascia, and a standard railing system.
Base price covers:
- Foundation and framing: Concrete footings, pressure-treated joists
- PVC decking: Top-tier boards, hidden fasteners
- Railing system: Matching PVC rails and balusters
- Permits and inspections: All Markham city stuff sorted
Stairs usually add $1,200–$2,500, depending on height and style. Most builds get 3–4 steps for easy backyard access.
Basic LED lighting starts at $800 for post caps and step lights. If you want strip lights or colour-changing setups, it can hit $2,000–$3,000.
We include site prep, waste removal, and a 10-year workmanship warranty. Plus, we handle all the permit paperwork—no City Hall headaches for you.
How Deck Size Affects Cost
The 16×20 size gives you great value per square foot compared to smaller decks. At this size, material waste drops and our crews work more efficiently.
PVC deck size breakdown:
- 12×16 (192 sq ft): $55–$70/sq ft
- 16×20 (320 sq ft): $50–$65/sq ft
- 20×24 (480 sq ft): $48–$62/sq ft
Smaller decks cost more per square foot because fixed costs (permits, equipment, prep) get spread over less area. You’ll pay the same $600 for permits whether your deck is 200 or 400 square feet.
With 320 square feet, you get space for a dining set and a lounge area without overspending. Most Markham backyards can handle this size without feeling crowded.
If you go bigger than 16×20, costs per square foot drop a bit, but unless you really need the space, it’s not always worth it. That 300–400 square foot range is the sweet spot for value.
PVC Decking: Features, Benefits, and Upgrades
PVC decking is about as low-maintenance as it gets for a 16×20 outdoor space. No sanding, no staining, just hose it off when it gets dirty. Add the right lighting and railings, and your deck turns into a true hangout spot.
What Makes PVC Decking Unique?
PVC decking is 100% synthetic—no wood fibres at all. That’s different from composite, which mixes wood and plastic. The result? PVC is totally waterproof and shrugs off stains, scratches, and fading.
In Markham, we see PVC hold up to all kinds of weather. The boards don’t expand and contract like wood, so you avoid the gaps and warping that drive people nuts.
Why PVC?
- Fully waterproof—no swelling or rot
- Stain resistant—wine, BBQ spills, you name it
- No maintenance—no sealing, no sanding, ever
- 25–30 year warranties from most brands
You’ll pay $50–$70 per square foot installed, so it’s definitely a premium choice. For a 16×20 deck, that’s $16,000–$22,400 for materials and basic install.
One thing I like: PVC stays cooler underfoot than composite, which is a relief in July. The texture is grippy, too, so it’s safer around pools or after rain.
Lighting Options and Costs
Lighting totally changes how you use your deck. Suddenly, it’s not just for sunny afternoons—it’s your evening chill spot, too. We usually put in three types: post cap lights, recessed deck lights, and under-rail lighting.
Post cap lights are the go-to choice, running $75–$150 each installed. For a 16×20 deck, you’ll want 8–12 of them, so add $600–$1,800.
Recessed deck lights look sleek but need to be planned before we build. These are $125–$200 each, and 12–16 lights cover a 320 sq ft deck nicely.
Popular lighting packages:
- Just post caps: $800–$1,200
- Post caps + recessed: $2,000–$3,500
- Everything (add under-rail strips): $3,500–$5,000
LEDs last 15–20 years and barely use any power. We always use low-voltage systems—they’re safer and easier to work with.
Under-rail strip lighting adds some drama for $25–$45 per linear foot. With about 72 feet of railing on a 16×20 deck, that’s $1,800–$3,240 if you want the full effect.
Choosing the Right Railing Systems
PVC railings finish off your deck and keep things safe. We usually install one of three: classic picket rails, horizontal cable rails, or glass panels.
Standard PVC picket rails cost $35–$55 per linear foot installed. They match the deck and never need touch-ups. For 72 feet of railing, budget $2,520–$3,960.
Cable rails are modern and keep your view open. They’re $65–$95 per foot, but they look sharp if you like a contemporary vibe.
Railing costs for 16×20 deck:
- PVC picket: $2,500–$4,000
- Cable: $4,700–$6,800
- Glass: $7,200–$10,800
Glass is the high-end choice at $100–$150 per foot. It blocks wind but doesn’t block your view—great if you’re up high or have a nice backyard.
We always include gates in railing quotes. Each gate adds $300–$600, depending on width and hardware. Most decks this size just need one for the stairs.
Material Choices for Decking in Markham
Picking the right material for your 16×20 deck changes both the upfront cost and what you’ll deal with later. PVC is the easiest to live with but costs the most up front. Composite is a middle ground, and wood is cheapest but needs regular TLC.
PVC vs. Composite Deck: Pros and Cons
PVC is $50–$70 per square foot in Markham, so it’s the top-end option. It’s totally synthetic—no splinters, no rot, no maintenance except a quick wash.
PVC Pros:
- No staining or sealing, ever
- Better scratch and stain resistance than composite
- Handles Markham’s wild weather without warping
- 30+ year warranties
PVC Cons:
- Highest upfront price
- Not as many textures as composite
- Can get pretty warm in direct sun
Composite is $40–$60 per square foot and mixes wood fibres with recycled plastic. You get more colour and texture choices, and it’s still pretty low maintenance.
Composite Pros:
- Tons of colour and grain options
- Better grip when wet
- Stays cooler than PVC
- 25–30 year warranties
Composite Cons:
- Needs a bit more upkeep than PVC
- Can fade in strong sun
- Some brands scratch more easily
For a 16×20 deck, PVC will cost you about $3,200–$6,400 more than composite just for the material.
PVC vs. Wood Deck: What to Consider
Pressure-treated wood decks start at $15–$25 per square foot—way less than PVC. Cedar is $25–$40 per square foot and looks great but still needs some care.
Wood Pros:
- Cheapest material cost
- Easy to swap out a damaged board
- Natural look (some people just love real wood)
- You can stain or finish it any way you want
Wood Cons:
- Needs annual cleaning and staining every couple years
- Warps, splits, and weathers over time
- Lasts 15–25 years if you keep up with maintenance
- Ongoing costs of $200–$500 a year
Going with PVC means you skip all the upkeep. Over 20 years, a wood deck’s maintenance can add $4,000–$10,000 to your total cost.
Markham’s weather—wet springs and hot summers—ages wood fast. We see lots of folks switch to PVC after a few years of fighting with their old wood deck.
Price Differences by Deck Material
For a 16×20 deck (320 sq ft), material costs break down like this:
| Material Type | Cost per Sq Ft | Total Material Cost | 20-Year Maintenance |
|---|---|---|---|
| Pressure-Treated | $15–25 | $4,800–8,000 | $4,000–8,000 |
| Cedar | $25–40 | $8,000–12,800 | $2,000–5,000 |
| Composite | $40–60 | $12,800–19,200 | $500–1,500 |
| PVC | $50–70 | $16,000–22,400 | $200–800 |
These numbers are for the decking material only—no framing or labour yet. Installation adds another $15–$25 per square foot, no matter what you pick.
Total Project Costs (Materials + Labour):
- Pressure-treated: $11,200–16,000
- Cedar: $14,400–20,800
- Composite: $20,800–28,800
- PVC: $24,000–30,400
When you factor in maintenance over 15–20 years, the price gap between materials gets a lot smaller. PVC’s upfront cost can make sense if you want to skip the hassle down the road.
Breaking Down Labour and Installation Costs
Labour is usually 50–60% of your total deck cost in Markham. For a 16×20 PVC deck with stairs and lighting, labour alone runs $8,000–$12,000, depending on how tricky the site is and what extras you want.
How Labour Costs Are Calculated
We base our labour charges on how complex your project is, not just the size. For a simple 16×20 PVC deck, labour usually falls between $25-35 per square foot. If you want stairs, that range jumps to $30-40 per square foot.
Labour breakdown for your project:
- Deck framing: $15-20 per sq ft
- PVC decking installation: $8-12 per sq ft
- Stair construction: $200-400 per step
- Electrical for lighting: $150-300 per fixture
Site access plays a big role in pricing. If we can get to your backyard easily, costs stay lower. Tight side yards or second-story decks can push labour up by 20-30%.
Crew size matters too. Most 16×20 decks need a 2-3 person crew for solid quality and a reasonable pace. Trying to rush with fewer people? That’s asking for mistakes, and nobody wants that.
Deck Construction Timeline
A 16×20 PVC deck with stairs and lighting usually takes 4-6 days. But weather can throw a wrench in things, especially in Markham’s unpredictable spring.
Day-by-day breakdown:
- Day 1-2: Framing and structure
- Day 3-4: PVC decking goes down
- Day 5: Stairs and railings
- Day 6: Electrical and finishing touches
Permit inspections can slow things down between steps. We try to time these so our crew isn’t stuck waiting, but sometimes the city has other ideas.
Custom lighting or extra features can add a day or two. We always leave a little buffer because rushing never pays off.
DIY or Hire a Pro: What to Expect
Thinking about building it yourself? You might save $8,000-12,000 on labour. But PVC decking has some quirks that trip up a lot of DIYers. We’ve fixed plenty of weekend projects that ended up costing more than if we’d done it from the start.
DIY challenges:
- Figuring out structural details for stairs and railings
- Needing a licensed electrician for electrical work
- Navigating permit applications and inspections
- Using specialized tools for PVC cutting and fastening
When you hire a pro, you get a workmanship warranty (usually 2-5 years), and we’ll handle permits and code compliance so you don’t have to sweat the details.
If you’re handy and have the time, maybe try a hybrid approach. We can handle the structure and electrical, and you can install the decking yourself.
Deck Design, Stairs, and Lighting: Cost Impacts
Adding things like stairs and lighting can tack on $3,000-$8,000 to your 16×20 PVC deck project in Markham. Every upgrade means more materials, more labour, and a longer build.
Adding Stairs: Structure and Price
Stairs are a big deal—they’re not just an afterthought. For a 16×20 PVC deck, expect $800-$2,500 for a solid stair system.
Basic stair configurations and costs:
- Straight run (3-4 steps): $800-$1,200
- L-shaped stairs: $1,200-$1,800
- Wrap-around design: $1,500-$2,500
We always match stair materials to your deck. PVC stair treads run $45-$65 per step; composite options are a bit less.
Deck height changes stair complexity. If your deck is over 30 inches high, you’ll need a landing, which can double your stair costs. We look at this early in the design.
Stairs need their own footings and extra framing at the attachment point. That usually adds $400-$800 to the project.
Integrating Lighting Features
Lighting takes your deck from daytime hangout to nighttime lounge. For a 16×20 deck, plan on $1,500-$4,000 for pro lighting.
Popular lighting options and pricing:
- Post cap lights: $75-$150 per fixture
- Under-rail LED strips: $25-$45 per linear foot
- Stair lighting: $300-$486 per fixture
- In-deck spotlights: $200-$400 per fixture
We usually install 12-16 fixtures for a deck this size—post caps, stair lights, and some accent pieces. Low-voltage systems are safer and easier on your power bill.
We rough in electrical during deck construction, not after. Planning your lighting before we start saves money. Adding lights later means cutting into finished work, which costs 40-60% more.
Custom Design Options for Outdoor Spaces
Custom touches make your deck stand out, but they come at a price. Built-in seating, planters, and privacy screens are the upgrades we get asked for the most.
Common custom additions:
- Built-in benches: $200-$350 per linear foot
- Privacy screens: $1,200-$2,800 for partial coverage
- Integrated planters: $400-$800 each
- Pergola structures: $2,500-$6,000
Multi-level decks work great with 16×20 layouts. Creating separate spaces for dining and lounging adds $2,000-$5,000 but gives you more usable space.
We usually suggest focusing on features that add both style and function. Built-in benches mean you need less patio furniture, and planters can give you privacy without blocking your view.
Budgeting Tips and Cost Variables for Markham Homeowners
Planning your 16×20 PVC deck budget? You’ll need to think about local permits, where you get your materials, and how you pick a contractor. These three things can really swing your final cost and timeline.
Permits and Local Regulations
Getting permits sorted early saves headaches later. Markham needs building permits for most decks, especially if they’re attached to your house or over a certain height.
Permits usually cost $500 to $2,000, depending on how complicated your deck is. Setback rules and height limits can catch people off guard and force mid-project changes.
Key permit considerations:
- Setback requirements from property lines
- Maximum height restrictions
- Engineering for elevated decks
- Electrical permits for lighting
Most 16×20 decks with stairs and lighting need both building and electrical permits. Approval takes 2-4 weeks, so build that into your schedule.
We always recommend checking with Markham’s building department early. Some deck designs that look simple can trigger extra requirements.
How to Save on Material Costs
Materials are 40-60% of your budget, so it pays to shop smart. PVC boards usually cost $8-15 per square foot, but timing and sourcing matter.
How to save:
- Shop in late fall or winter for deals
- End-of-season sales can knock 10-20% off decking
- Bulk orders cut per-square-foot costs
Local suppliers sometimes beat big box stores, especially for big orders. If you build a relationship, you might even get contractor pricing as a DIYer.
Other tips:
- Mix premium and standard materials
- Use composite or PVC only where it shows
- Pick standard colours
- Plan deck size around standard board lengths
Don’t cheap out on framing or fasteners. We always tell clients to spend on the structure and save on finishes if needed.
Getting Accurate Quotes from Contractors
Getting clear quotes helps you avoid budget surprises. We suggest getting at least three detailed quotes that break out labour, materials, and permits.
A good quote should list:
- Itemised material costs and quantities
- Labour hours and rates
- Permit and inspection fees
- Site prep needs
Watch out for quotes that are way lower than others. Sometimes contractors lowball and then hit you with surprise charges later.
Ask about their experience with PVC decking. It’s not the same as wood, and mistakes can get expensive fast.
Questions to ask:
- How many PVC decks have you built?
- What’s your warranty?
- Are you licensed and insured in Markham?
- Got any recent local references?
A solid contractor will come see your site and ask about your preferences. They’ll also point out any tricky parts based on your property.
Frequently Asked Questions
We hear these all the time from Markham homeowners looking at PVC deck projects. Here’s our straight-up take on costs, timelines, and what to expect for your 16×20 deck with stairs and lighting.
What’s the average cost per square foot for a PVC deck installation in Markham as of 2025?
Right now, we’re charging $50-$70 per square foot for PVC decking in Markham, including materials and labour.
A 16×20 deck is 320 square feet, so you’re looking at $16,000 to $22,400 for the main deck—stairs and lighting not included.
Premium brands like AZEK or TimberTech push you to the higher end. Entry-level PVC keeps you closer to $50 per square foot.
Could you break down the price of adding stairs to a PVC deck? I’ve got a two-story drop to consider, eh?
Stairs for a second-storey deck aren’t cheap, but you need them for safety and code. We charge $200-$400 per step for PVC.
A two-storey drop takes about 12-16 steps, so you’re at $2,400 to $6,400 for stairs.
You’ll need solid footings at the bottom, and probably a landing halfway for longer runs. That landing adds $800-$1,200.
If you want wide stairs or custom railings, add 20-30%. Most people stick with 36-inch wide stairs to keep costs down.
How much extra do you reckon we’ll be spending for a deck with built-in lighting, compared to a standard deck?
Built-in lighting tacks on $1,500 to $4,000, depending on how fancy you want to get. Basic LED strips under the railings run $1,500-$2,500.
Post cap lights are a favourite and cost $50-$150 each. Most 16×20 decks use 8-12 post caps—so $400-$1,800.
Stair lighting is a must for safety on raised decks. We charge $75-$125 per step for integrated LED strips.
Electrical work to power it all runs $800-$1,500 if your deck’s far from the house.
Are there any hidden fees I should be aware of when budgeting for my deck project?
HST is the big surprise—13% on top of everything. That’s $2,500-$3,500 extra.
Markham permits are $400-$800, depending on size and complexity. We handle the paperwork, but you pay the fees.
Waste disposal is another $400-$700. You can’t toss PVC scraps with your regular trash.
If we need to tear out an old deck, add $8-$15 per square foot. Rocky ground or tough access can bump up foundation costs by $500-$1,500.
What’s the life expectancy of a PVC deck in our Canadian climate, and how does it affect the cost over time?
PVC decks last 30+ years in Ontario’s climate. Freeze-thaw cycles that wreck wood don’t bother good PVC.
Most brands back their boards with 25-30 year warranties for fading, staining, and structure. That’s real peace of mind.
No staining, sealing, or board replacement means you save $200-$500 a year on maintenance. Over 20 years, that’s $4,000-$10,000 in your pocket.
A pressure-treated deck might cost $12,000 upfront, but you’ll spend $8,000+ on upkeep over its life. Your $20,000 PVC deck breaks even in about 15 years.
Can you give me the lowdown on maintenance costs for a PVC deck, including cleaning and repairs?
PVC deck maintenance? Honestly, it’s a breeze compared to wood. You’ll spend maybe $50 a year on soap and water for a basic clean—nothing fancy needed.
Every couple of years, it’s smart to give it a good power wash. If you pay a pro, expect anywhere from $200 to $400, but most folks just rent a power washer for about $80 and handle it themselves. Not exactly rocket science.
Repairs don’t come up often, but if you do manage to damage a board, you’re looking at $15-$25 per square foot to replace it, labor included. The way these decks are built, swapping out a board isn’t much of a headache.
Really, the main thing you’ll spend is a bit on cleaning stuff and, honestly, your own time. I’d say $100-$200 a year covers it for most people, unless you’re super picky or have a massive deck.