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September 14, 2026

Eastern Washington Lumber Prices This Week: What’s Up, What’s Down, and What to Buy Now (Sept 2026)

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Quick take for anyone tracking lumber prices in Spokane this week: framing lumber has flattened out after a rocky summer, OSB and plywood are getting cheaper, and pressure-treated lumber is still running about 3% above last year’s numbers. If you’ve got a project planned in Spokane, Airway Heights, Colville, or Kettle Falls before winter sets in, that mix creates some real opportunities — but only if you act on the right ones at the right time.

At Builders Supply & Home Center, we’ve tracked local lumber markets since 1979, and this week’s numbers tell a story that’s a little different from what you’ll hear from a national pricing index. Here’s what’s actually happening on the ground in Eastern Washington, and what we’d tell you to do about it if you walked into one of our stores today.

Framing Lumber Has Steadied — Here’s Why That Won’t Last

Dimensional lumber — your 2x4s, 2x6s, and larger timbers — has leveled off after months of bouncing around. Prices aren’t dropping, but they’re not climbing either, which is honestly the most predictable this market has been in a while.

For anyone with a framing job penciled in for October or November, this stability is worth taking seriously. Freight into North Stevens County and the Colville Valley slows down once winter weather sets in, and yards across the region tend to see framing lumber tick back up as fall demand ramps up and trucking gets harder. If your project is on the calendar, now is the time to place your order rather than wait and hope prices hold.

What to do today: Call in your framing lumber order for any project starting in the next 60-90 days. Locking in material now protects your budget and your timeline — especially if you’re building in Colville or Kettle Falls, where delivery scheduling fills up fast once the weather turns.

OSB and Plywood Prices Are Softening — This Is Your Window

The best news this week is in panel products. After a long stretch of elevated pricing, OSB and plywood are trending down, and that’s good news whether you’re sheathing a new build in Airway Heights, subfloor work on a remodel in Spokane, or finishing up outbuildings anywhere in between.

We’re also seeing the price gap between OSB and plywood narrow as OSB eases. If you’ve been defaulting to whichever product was cheaper last quarter, this is a good moment to actually run the numbers on your specific project instead of assuming last season’s math still applies.

What to do today: If you’ve got sheathing or subfloor needs coming up this fall or winter, buy now while pricing is soft. Panel prices don’t stay favorable forever, and locking in material at today’s numbers protects your margins on jobs that won’t wrap up for months.

Pressure-Treated Lumber: Don’t Let Deck Season Slip Away

Pressure-treated lumber is the outlier this week, sitting roughly 3% above last year’s prices with no real signs of easing before winter. If you’ve got a deck or fence project on your mind in Colville, Kettle Falls, or anywhere in North Stevens County, that increase deserves a spot in your budget conversation now, not later.

Here’s the practical reality: fall is still a great time to build in Eastern Washington. The ground hasn’t frozen, crews are available, and getting your materials ordered now means you’re not chasing a moving target on price. Waiting typically means paying more, not less.

What to do today: If you’ve been putting off a deck or fence build, get your PT lumber order in now. Ask our team about current bundle pricing on PT lumber and fasteners — bundling often saves more than waiting for a “better deal” that may not come.

What to Buy Now vs. What Can Wait

Based on this week’s numbers, here’s our straightforward local guidance:

Buy now: OSB and plywood, while pricing is soft — especially for fall and winter projects.
Buy now: Pressure-treated lumber for any deck or fence job, before that 3% increase climbs further.
Lock in soon: Framing lumber for anything scheduled in the next 60-90 days, since steady pricing rarely lasts once fall demand kicks in.
Monitor: Specialty and engineered lumber products, which tend to move on their own schedule separate from commodity panel and framing trends.

Why Local Pricing Intel Actually Matters

National chains price off regional or national averages. That’s not what determines what you pay in Spokane, Airway Heights, Colville, or Kettle Falls — freight costs, seasonal demand, and local supply conditions do, and most big retailers don’t localize that information down to the store level.

We’ve been family owned and serving Eastern Washington since 1979, and our team watches these trends every week specifically so we can tell you what’s happening here, not what a national index says is happening somewhere else.

Get the Local Advantage on Your Next Project

Whether you’re framing a new build in Airway Heights, wrapping up a remodel in Spokane, or racing to finish a deck in Colville or Kettle Falls before the weather turns, our team can walk you through exactly what this week’s pricing means for your budget and timeline. Stop by your nearest Builders Supply & Home Center location or shop online anytime at bldrsupply.epicor-inet.com to get current pricing and place your order today.

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