Drywall vs. Other Wall Systems: What's Best for Calgary Homes?

If you're finishing a basement or renovating a room in Calgary, you'll eventually face this question: what should your walls actually be made of?

Most homeowners default to drywall without much thought — and honestly, that's usually the right call. But it helps to understand why, especially when contractors or suppliers start throwing around alternatives.

Here's a plain-English breakdown of your real options.

Option 1: Drywall (Gypsum Board)

Drywall — also called gypsum board, sheetrock, or wallboard — is the standard wall material in virtually every home built in Canada since the 1960s. It's a panel made of gypsum plaster pressed between two sheets of paper, screwed to wall framing, then taped, mudded, and finished.

Why it's the default:

• Fast to install — a basement can be drywalled in days, not weeks
• Cost-effective — materials and labour are lower than any alternative
• Easy to repair — patches are straightforward and widely understood
• Works with modern insulation — the space behind drywall is perfect for fiberglass batts or spray foam
• Code-compliant everywhere in Alberta

The trade-offs:

• More susceptible to dents and holes than plaster
• Standard drywall doesn't do well with moisture — requires the right type in wet areas
• Thinner panels mean it's not as naturally soundproof as plaster

For Calgary specifically: In below-grade spaces, drywall needs to be installed over a proper vapour barrier. Alberta Building Code requires a minimum R-12 insulation value for basement walls, and the framing cavity behind the drywall is where that insulation lives. See our post on the right drywall for Calgary basements: MR board vs. mould-resistant board for more on moisture considerations below grade.

Drywall Types — What Actually Matters in Calgary

Not all drywall is the same. Here's what our crew installs and why:

Standard 1/2" drywall — used on most interior walls and ceilings above grade.

5/8" Type X (fire-rated) — required by Alberta Building Code between an attached garage and living space, and between floors in secondary suites. It's also commonly used on basement ceilings for fire separation.

Moisture-resistant drywall (green board or purple board) — used in bathrooms and laundry rooms where humidity is a factor. Not the right choice for exterior basement walls where moisture comes from the concrete side — the coating is on the wrong side to help there.

Cement board (DensShield or equivalent) — not drywall, but worth mentioning: required directly behind tile in showers and around tubs. Drywall of any kind is not acceptable in a wet tile application. For a full breakdown of what Calgary bathrooms and kitchens actually need behind the walls, see this guide.

Option 2: Plaster

Plaster was the standard wall finish in Canadian homes built before the 1950s. If your home has plaster walls, you'll know — they sound solid when you knock on them, nails are hard to drive, and repairs are expensive.

Where plaster has real advantages:

• Significantly better sound dampening — it's denser and has no hollow spaces
• More durable surface — harder to dent or punch through
• Better natural fire resistance
• Seamless finish with no visible joints

Why almost nobody installs it new today:

• Labour-intensive — requires multiple coats applied by a skilled tradesperson
• Much more expensive — both materials and installation time
• Harder to modify — running new electrical or plumbing means major work
• Difficult to add insulation behind existing plaster walls

Our take: If you have existing plaster walls in good shape, keep them. If you're building new or finishing a basement in Calgary, plaster is not a practical choice. The cost and timeline don't make sense for residential work.

Option 3: Wall Panels (MDF, PVC, Wood Paneling)

Wall panels — whether wood, MDF, or PVC — show up in renovation stores and are marketed as a quick alternative to drywall.

Where they can make sense:

• Feature walls or accent areas
• Finishing spaces that don't require inspection (some utility areas)
• Covering damaged drywall without a full tear-out

Why they're not a replacement for drywall in a basement:

• Most panels are not fire-rated — Alberta Building Code requires drywall in finished basement spaces for fire separation
• Wood and MDF panels are not moisture-resistant — a real problem below grade in Calgary's climate
• Cannot substitute for drywall when permits and inspections are involved
• PVC panels work in some wet areas but don't meet code for general wall finishing

What We Actually Use at DryBuild

When we frame and drywall a basement in Calgary, the typical setup is:

• Exterior basement walls: vapour barrier over insulation, then 1/2" standard drywall (or moisture-resistant if the basement has had water history)
• Ceilings: 5/8" Type X where fire separation is required; 1/2" in lifestyle basements
• Bathrooms: moisture-resistant drywall in the general area, cement board directly behind tile
• Garage-to-house separation: 5/8" Type X drywall on the garage side, sealed at all penetrations

This isn't preference — it's what Alberta Building Code requires, and what passes inspection. If you want to plan ahead, our fire separation planning calculator can help you identify where Type X drywall is needed in your project.

Bottom Line

For a Calgary home, drywall is the right choice in almost every case. It's fast, affordable, meets code, and works with the insulation your basement needs for our climate.

The real decisions are about which type of drywall — and that depends on the location, moisture exposure, and fire separation requirements of the specific space.

If you're planning a basement development and want to know exactly what's needed before you start, give Mike a call. We'll walk through it with you on-site, at no charge.