Materials and prices · October 22, 2026

Canadian producer prices diverged across key construction material groups

By Workvado / Litequo LLC · Published October 27, 2026 · Updated October 27, 2026

Statistics Canada’s September index release shows lumber and fabricated metal construction materials easing month over month while remaining higher year over year, as energy drove most of the overall producer-price increase.

Statistics Canada released its September 2026 Industrial Product Price Index on October 22, publishing new factory-gate price measures for Canadian manufactured goods. The overall index rose 2.0% from August and 14.5% from September 2025, but those headline changes do not describe what a contractor pays at a local yard. Within product groups relevant to building work, the lumber and other wood products index fell 1.2% month over month and stood 8.0% above a year earlier. The fabricated metal products and construction materials group also declined 1.2% from August, while remaining 4.2% higher year over year. Cement, glass and other non-metallic mineral products slipped 0.3% in the month and were up 1.4% over the year. The release therefore presents a mixed materials picture rather than one uniform price trend.

The strongest movement in the overall index came from energy and petroleum products, whose producer-price index jumped 12.1% month over month and 63.9% year over year. Statistics Canada highlighted refined petroleum and diesel fuel as key contributors to the aggregate increase. When energy and petroleum are excluded, the overall industrial product index rose 0.3% from August and 8.5% year over year. This difference is useful for construction managers because fuel can affect transportation, equipment and deliveries even where the factory-gate prices of lumber, fabricated metal or mineral products move differently. But the published energy index is not a delivered construction-material surcharge, and it does not quantify a particular supplier’s freight charge. The data establishes which broad producer-price groups changed; it does not calculate the effect on one project’s bill of materials or job cost.

The wood-products figure is especially easy to misread. Statistics Canada’s index covers a broad category of lumber and other wood products sold by Canadian manufacturers, not a single grade, dimension or regional cash price. A 1.2% monthly decrease may coexist with upward year-over-year movement because the two comparisons use different reference points. For a contractor estimating framing or sheathing, the index is useful as a signal to revisit market assumptions, but it cannot tell whether a local supplier has lowered a quote, whether a particular species is available or whether freight and handling changed. The data also does not isolate the effect of tariffs. Statistics Canada notes that its producer-price index excludes indirect taxes and transportation or wholesale and retail costs after the factory gate; tariff or supply effects can nevertheless influence prices indirectly through inputs and market conditions.

The fabricated metal products and construction materials category deserves similar caution. Its index fell 1.2% between August and September but was 4.2% higher than in September 2025. The category is broader than reinforcing bar or structural steel and does not isolate an individual product specification. A project may use steel studs, deck, fasteners, handrails, fittings or other items purchased through different channels, each with separate supplier inventories, fabrication lead times and commercial terms. Contractors should use the official trend as one input to a cost review, then ask suppliers for current, itemized quotations and quote-validity periods. A broad index can help frame escalation discussions across a portfolio, but it cannot replace a bid-level comparison or a purchase order with clear quantity, delivery and substitution terms.

The mineral-products group was comparatively steady in the latest month: cement, glass and other non-metallic mineral products decreased 0.3% from August and increased 1.4% year over year. That aggregate movement should not be interpreted as a price quote for ready-mix concrete, masonry units, flat glass or insulation. The index is intended to capture producer prices across a group of manufactured products, while construction purchase prices may include delivery, fabrication, taxes and distributor margins. If an estimate contains concrete, glazing or masonry work, the practical response is to verify the exact product and location with suppliers. A contractor with a long gap between bid and installation may want to check whether the specified material and lead time are still available before locking a fixed-price commitment. The September index offers context for that conversation, not a forecast of the next invoice.

Statistics Canada’s companion Raw Materials Price Index rose 4.8% month over month and 27.0% year over year in September, while the index excluding crude energy products fell 0.4% in the month. This distinction separates costs paid by manufacturers for selected raw materials from prices those manufacturers receive for finished goods. Crude energy products were the main contributor to the raw-material index increase; metal ores, concentrates and scrap declined 0.7% month over month. Construction firms should not treat the RMPI as a construction input-cost index, because it reflects a basket purchased by manufacturers and not the complete mix of materials, labour, equipment and subcontracting that makes up a building project. Still, the contrast between the total and non-energy measure helps explain why the headline increase need not correspond to a broad jump in every material category.

For a contractor, the data supports a more specific cost conversation than a single inflation headline. Break an estimate into material groups, compare current supplier quotes with the last buy, and identify which lines have meaningful price or availability exposure. On a project with wood framing, metal components and concrete or glass work, the published September changes moved in different directions and at different annual rates. That does not prove a project’s total material cost fell: labour, freight, taxes, regional supply, product mix and purchasing timing remain outside the simple comparison. It does suggest that applying the 14.5% overall IPPI year-over-year rise indiscriminately to every construction material would be inaccurate. Where contracts allow escalation, record the product category and period being used and make sure the index matches the commercial clause.

The October 22 release also notes that Statistics Canada began transitioning the index sample with the September reference month, using establishment information from the 2022 Annual Survey of Manufacturing and Logging Industries. The transition will occur in stages through the December 2026 reference month, and previously calculated index values under the old sample will not be revised with new-sample data. Analysts comparing monthly changes should keep that methodological note in view and use the official series definitions. The release’s practical message is not that all materials are suddenly more expensive or cheaper, but that prices differ materially by product group and by comparison period. Contractors should use the table to identify where to ask better questions, then base bids and procurement schedules on current supplier evidence.

Data release date: October 22, 2026; September 2026 reference month
Lumber and other wood products: -1.2% month over month; +8.0% year over year
Fabricated metal products and construction materials: -1.2% month over month; +4.2% year over year
Cement, glass and non-metallic mineral products: -0.3% month over month; +1.4% year over year
Energy and petroleum products: +12.1% month over month; +63.9% year over year

Sources

Industrial product and raw materials price indexes, September 2026, Statistics Canada, read October 27, 2026
Industrial Product Price Index – Not seasonally adjusted, Table 1, Statistics Canada, read October 27, 2026
Industrial Product Price Index (IPPI): survey description, Statistics Canada, read October 27, 2026