Can I float engineered hardwood over a concrete slab in my Vancouver condo without gluing it?

Yes — floating engineered hardwood over a concrete slab is one of the most common and effective installation methods for Vancouver condos, and it is often the preferred approach over glue-down for several practical reasons. A floating installation means the planks lock together using a click-lock or tongue-and-groove profile and rest on top of an underlayment without any adhesive or fasteners attaching them to the concrete below.

Floating installation works exceptionally well in Vancouver condos for a few key reasons. First, it is significantly faster than a full-spread glue-down installation — a skilled installer can typically float 300-500 sq ft per day compared to 200-350 sq ft for glue-down, which translates to lower labour costs and less disruption in your home. Second, floating floors are easier to remove and replace if future damage occurs or if you want to change your flooring down the road — the planks simply unclick without the mess of scraping dried adhesive off concrete. Third, and particularly relevant for Vancouver condos, a floating installation with a quality acoustic underlayment makes it easier to meet the STC 55+ and IIC 55+ acoustic ratings that most Metro Vancouver strata corporations require for hard flooring installations.

Before floating engineered hardwood over your concrete slab, there are several critical preparation steps that should not be skipped. Moisture testing is essential. Vancouver's marine climate and high water table mean that concrete slabs — even in upper-floor condos — can carry elevated moisture levels. Use an in-situ relative humidity probe test; the slab should read below 75% RH before proceeding with installation. A calcium chloride test should read below 3 lbs per 1,000 sq ft. If your slab exceeds these thresholds, you will need a moisture-mitigating system before installing any wood-based flooring.

The underlayment selection is critical in a Vancouver condo floating installation. You need an underlayment that serves three functions simultaneously: vapour barrier (to block concrete slab moisture from reaching the wood), acoustic insulation (to meet strata STC/IIC requirements), and cushioning (for comfort underfoot and to smooth minor subfloor imperfections). Products like cork-rubber composite underlayment or premium acoustic foam with an integrated vapour barrier are popular choices in the Metro Vancouver market. Budget $1-$3 per sq ft for a quality acoustic underlayment that meets strata requirements — this is not an area to cut costs. Basic foam underlayment at $0.25-$0.75 per sq ft will not meet strata acoustic standards and will result in noise complaints from neighbours below.

Subfloor flatness must be checked before installation. The concrete slab should be flat within 3/16 inch over 10 feet (some manufacturers require 1/8 inch). Concrete slabs in Vancouver condos, particularly in newer high-rise construction, are generally quite flat, but older low-rise and mid-rise buildings may have more variation. High spots can be ground down and low spots filled with self-leveling compound — budget $2-$4 per sq ft if significant leveling is required.

Strata approval must be obtained before purchasing materials or scheduling installation. Most Vancouver strata corporations require a formal alteration agreement that specifies the exact flooring product, acoustic underlayment, and STC/IIC test documentation. Some stratas restrict hard flooring on upper levels entirely, and others mandate specific acoustic solutions. Submit your application and receive written approval before buying anything. The strata application and inspection process typically costs $500-$2,000 depending on the building.

A few practical tips for your floating installation: leave a minimum 1/4-inch expansion gap around all walls, columns, kitchen islands, and doorframes. Use foam backer rod or spacers during installation and cover the gaps with baseboards or quarter-round moulding afterward. Ensure your engineered hardwood has been acclimatized in your condo for at least 48-72 hours with your HVAC running at normal living temperature before installation — this is especially important in Vancouver's humid climate. Choose a plywood-core engineered hardwood rather than HDF core for better moisture performance over concrete.

For cost planning, a floating engineered hardwood installation in a Vancouver condo typically runs $7-$16 per sq ft all-in, including materials, acoustic underlayment, vapour barrier, transitions, and labour. A typical 700 sq ft condo would be approximately $4,900-$11,200 before strata fees.

Ready to get started? Vancouver Floor Installers can match you with condo flooring specialists who handle strata applications, acoustic requirements, and concrete slab installations throughout Metro Vancouver.

---

Find a Flooring Contractor

Vancouver Floor Installers connects you with experienced contractors through the https://vancouverconstructionnetwork.com:

• Vertex Property Solutions Inc. ✓
• Mr marble and stone ✓
• Luvipe Excavation Ltd. ✓