Should I acclimate hardwood flooring longer in Calgary because of the dry climate?

Yes — Calgary's extremely dry climate means hardwood flooring should acclimate for 5 to 7 days minimum, compared to the 48-72 hours that manufacturers typically recommend as a baseline. This extended acclimation is one of the most important steps in any hardwood installation in Calgary, and skipping it or cutting it short is the single most common cause of gapping in the first heating season.

The reason is Calgary's indoor humidity. From October through April, indoor relative humidity in Calgary homes regularly drops to 15-25%, which is among the lowest of any major Canadian city. Hardwood flooring is typically manufactured and stored at a moisture content of 6-9%, calibrated to a balanced environment of around 35-45% relative humidity. When that wood enters a Calgary home in January running at 18% humidity, it needs time to release its excess moisture and reach equilibrium with the drier indoor environment. If you install it before it has fully acclimated, the planks will continue to shrink after installation, opening gaps between every board.

Proper acclimation protocol for Calgary involves more than just leaving the boxes in the room. The flooring should be removed from all packaging — cardboard boxes and plastic wrap trap moisture and prevent the wood from breathing. Stack the planks loosely with spacers between layers to allow air circulation on all surfaces. The room should be at its normal living temperature (20-22 degrees Celsius) with the HVAC system running as it normally would. If you are acclimating during summer when humidity is higher, that baseline is fine — but in winter, the low humidity is actually an advantage because the wood will reach its driest, most contracted state before installation, meaning any gaps that appear will be at their worst before a single plank is nailed down.

Use a moisture meter to verify acclimation. The wood's moisture content should be within 2% of the subfloor's moisture content before installation begins. For Calgary in winter, this often means the hardwood needs to reach 5-7% moisture content to match a plywood subfloor that has been equilibrated to the home's dry environment. Without a meter, you are guessing — and guessing leads to callbacks.

Engineered hardwood generally needs less acclimation time than solid due to its dimensional stability, but 48-72 hours minimum is still recommended even for engineered products in Calgary. Laminate and LVP require 48 hours to temperature-acclimate but are far less sensitive to humidity.

One practical tip: plan your delivery timing carefully. If you are having hardwood installed in February, have it delivered at least a full week before the installation crew arrives. Coordinate with your installer so the acclimation period is built into the project schedule from the start. A knowledgeable Calgary flooring installer will insist on proper acclimation — find one through the Calgary Construction Network.

---

Looking for experienced contractors? The Calgary Construction Network connects homeowners with qualified professionals:

• Besademolition
• Quality count construction Ltd.
• Greenstone landscaping solutions
• Universal Slate International Inc.
• Eshine Cleaning Services