RONA pressure treated lumber prices are listed in Canadian dollars, and RONA stores serve Canadian shoppers rather than the U.S. market. For budgeting, U.S. readers can use the estimates below as converted, approximate retail comparisons: a common 8-foot deck board may run about $7-$13 USD, while a small deck’s lumber order can total several hundred dollars. Board size, treatment rating, local supply, exchange rates, and delivery affect the final price.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 2×4 pressure-treated lumber, 8 ft | $5 | $7 | $10 | General framing; approximate USD equivalent |
| 2×6 pressure-treated lumber, 8 ft | $9 | $12 | $17 | Common deck framing size |
| 5/4×6 treated deck board, 8 ft | $7 | $10 | $14 | Decking surface board |
| 4×4 pressure-treated post, 8 ft | $14 | $20 | $28 | Post grade and treatment affect price |
| Basic 10×12-ft deck lumber package | $650 | $1,050 | $1,700 | Lumber only; excludes labor and site work |
What RONA pressure-treated boards cost in U.S. dollars
RONA’s online and in-store prices are generally shown in Canadian dollars (CAD), not U.S. dollars. A shopper comparing a Canadian listing with U.S. retail pricing should convert the posted price using the current exchange rate, then account for sales tax, cross-border pickup or shipping, and differences in local product availability. The ranges here are planning estimates, not a live RONA quote or a guarantee that a particular item is stocked.
For standard ground-contact or above-ground residential projects, an 8-foot 2×4 may fall around $5-$10 USD, an 8-foot 2×6 around $9-$17, and a 5/4×6 decking board around $7-$14. Longer pieces cost more, though cost per linear foot may be similar. A pressure-treated 4×4 post commonly budgets at $14-$28 for 8 feet, while 6×6 posts can cost roughly $35-$70.
For a basic 10×12-foot deck, allow roughly $650-$1,700 for the pressure-treated lumber package alone. That estimate assumes a simple rectangular platform, common sizes, and no unusually long spans, stairs, railing, or extensive waste. Premium appearance grades and higher treatment specifications can push the order above the range.
Assumptions: U.S. dollar estimates for comparable North American retail lumber, standard residential dimensions, and ordinary access; actual RONA prices are posted in CAD and change by location.
How deck boards, framing, and posts shape the lumber quote
A lumber quote combines visible decking with the structural pieces underneath. Decking is often the most noticeable line item, but joists, beams, posts, blocking, and stair framing can represent a substantial share of the order. A price comparison is useful only when the board dimensions, lengths, treatment use, and grade match.
| Quote item | Typical U.S. price | Pricing unit | What changes the charge |
|---|---|---|---|
| Decking boards | $7-$14 | Each 5/4x6x8-ft board | Length, grade, surface quality, and stock |
| 2×6 joists and framing | $9-$22 | Each 8-12-ft board | Length, spacing, and treatment rating |
| 4×4 posts | $14-$28 | Each 8-ft post | Grade, treatment, and straightness |
| 6×6 posts or beams | $35-$100 | Each 8-12-ft piece | Cross-section, length, and structural use |
| Fasteners and connectors | $40-$180 | Typical small-project allowance | Coating, quantity, and connector type |
| Delivery and handling | $50-$180 | Per local delivery | Distance, order size, and unloading needs |
For installed work, labor commonly adds about $25-$60 per worker-hour, with regional rates and contractor minimums varying. A straightforward deck installation may require 30-60 labor hours, while demolition, stairs, raised framing, or difficult access can add time. The labor estimate is separate from lumber purchase and should be confirmed in the contractor’s written quote.
Compare the complete materials list, not just the per-board sticker price. A lower-cost board may be shorter, have a different actual thickness, or carry a treatment label unsuitable for its intended exposure. Ask whether hardware, waste allowance, delivery, and taxes are included.
Why board length, ground contact, and deck size change the price
Project dimensions and treatment requirements are among the strongest price drivers. A 10×12-foot deck has 120 square feet of surface, while a 12×16-foot layout has 192 square feet, a 60% increase in area before accounting for extra framing, posts, and waste. More square footage usually means more boards, but stairways, picture-frame borders, and diagonal layouts also increase cutting loss.
Joist spacing changes the framing quantity. A deck designed with joists 16 inches on center generally needs more framing members than one designed for 24 inches on center, although the suitable spacing depends on board span, loading, and local code. When joists are spaced at 12 inches on center instead of 16, the number of joists can rise by roughly one-third across the same width. That can add several framing boards to even a modest platform.
Treatment labeling also matters. Lumber intended for above-ground use is not automatically suitable for direct ground contact, burial, or a location exposed to persistent moisture. Posts set into soil may require ground-contact treatment, and larger structural members may have different treatment specifications. Higher exposure requirements can raise the price per piece, so the project plan should specify use before purchase.
Length and grade create additional differences. An 8-foot board is not a direct substitute for a 12-foot piece if the design requires a continuous span. Longer stock may carry a higher total price and can be more prone to bowing or handling damage. Selecting by price alone can also mean sorting through more boards or rejecting pieces with defects.
Size, spacing, and treatment class can change the order by hundreds of dollars. A deck above 30 inches from grade may need railing and stairs, and local rules can affect the design. Obtain the required span and treatment specifications before comparing a RONA listing or a U.S. retailer’s equivalent item.
Example threshold: for a 10×12-foot deck, moving from 16-inch to 12-inch joist spacing can add around 3-5 joists, depending on layout and edge framing.
Three lumber budgets for common deck sizes
These examples estimate materials rather than installed project totals. They use typical U.S. retail equivalents for pressure-treated lumber and a modest allowance for fasteners and waste. RONA prices in CAD may differ, and a real design may require additional beams, posts, blocking, stairs, or guardrails.
| Project scenario | Approximate lumber quantity | Materials range | Planning notes |
|---|---|---|---|
| 8×10-ft ground-level platform | About 20-25 decking boards, 10-14 framing pieces, 4-6 posts | $450-$900 | Simple shape; limited stairs or railing |
| 10×12-ft basic deck | About 30-36 decking boards, 14-20 framing pieces, 6-8 posts | $650-$1,700 | Range reflects grade, layout, and beam design |
| 12×16-ft raised deck | About 50-60 decking boards, 24-35 framing pieces, 8-12 posts | $1,400-$3,200 | Stairs and railing can add material and hardware |
A deck board count depends on actual coverage width, gaps, borders, and cutting. A 5/4×6 board is typically narrower than its nominal six-inch size, so the number required should be calculated from the product’s actual coverage rather than nominal dimensions alone. An extra 5%-10% for cuts and defects is common for a simple layout; complex patterns can require more.
Use a measured takeoff or contractor materials list before treating these totals as a shopping budget. Structural framing should follow an approved plan, not a generic online quantity estimate. The table excludes excavation, concrete footings, demolition, tools, and paid installation.
What delivery, cutting waste, and site work add
Delivery is especially relevant when buying long boards or a large order. Local delivery may cost $50-$180, with charges increasing for longer distance, restricted access, special unloading, or a small order below the retailer’s minimum. Confirm whether the quoted fee covers curbside drop-off only; carrying lumber to the backyard may require separate labor.
Waste allowance affects total board count. A straightforward rectangular deck may use a 5%-10% reserve, while diagonal decking, multiple levels, or many small cutouts can require 10%-15% or more. Adding a 10% allowance to a $900 lumber list means budgeting roughly $90 extra, but the reserve is not necessarily all waste: it can cover damaged, warped, or unsuitable boards.
Site preparation is separate from lumber pricing. Removing an existing deck may add $300-$1,500 or more depending on size, disposal fees, and access. Concrete footings, grading, and hauling old material can also materially change a project quote. A material order that appears inexpensive may not reflect these costs.
Ask for delivery, disposal, and waste as separate quote lines. Separate lines make it easier to compare a RONA materials list with a local U.S. yard or home-improvement retailer, particularly when one quote bundles handling into the board price.
RONA CAD prices versus U.S. regional lumber rates
There is no single U.S. conversion price for RONA lumber because RONA is a Canadian retailer and its price tags are in CAD. Exchange rates change, while the retail price can vary by province, store inventory, promotion, and length. A Canadian shelf price converted to USD is therefore a reference point, not necessarily the amount a U.S. buyer can pay after transport or taxes.
Within the United States, comparable pressure-treated lumber can be around 5%-15% less expensive in a competitive market with several suppliers, or 10%-25% more expensive in a remote area, a high-cost metro, or a market with limited stock. These are broad planning differences, not fixed regional multipliers. Local species availability, freight, season, and retailer promotions can move a particular board outside those ranges.
Cross-border shopping may not save money after fuel, delivery, currency conversion fees, taxes, and border requirements are counted. U.S. readers should compare a local quote in USD with the full converted Canadian cost, including transport. For a large project, a local lumberyard may also provide a takeoff or delivery service that offsets a slightly higher per-board rate.
Use RONA pricing as a Canadian benchmark, then verify the equivalent U.S. product locally. Match nominal dimensions, actual lengths, treatment category, and grade before judging whether one price is lower.
How to lower a treated-lumber order without weakening it
Keep the design simple where practical. Rectangular layouts generally use lumber more efficiently than curved edges, diagonal decking, or multiple border details. Accurate measurements, standard board lengths, and a clear cut plan can reduce offcuts and the need to buy extra stock. Avoid ordering structural members before confirming the required dimensions and span.
Compare equivalent grades and treatment labels across at least three suppliers. One quote may list a higher-grade appearance board, while another prices a lower grade with more visible knots or variation. Ask for a line-by-line list with quantity, length, treatment use, and delivery charge. For a large order, verify whether the retailer offers a bulk price or a lower delivery rate.
Consider whether repair is possible when only a small area is damaged. Replacing one failed board or a limited set of deck boards can cost far less than rebuilding an otherwise sound structure. However, rot at posts, beams, or joists calls for a structural assessment; covering damaged framing with new decking can create a safety problem and increase later repair costs.
Do not reduce cost by substituting an unsuitable treatment level, undersizing framing, or skipping required connectors. Those choices can violate local code or shorten service life. A more useful saving is avoiding unnecessary decorative upgrades, purchasing standard lengths, and scheduling delivery with other materials when doing so does not delay the work.
The safest savings come from reducing waste and unnecessary scope, not from cutting structural specifications. Confirm code requirements, treatment needs, and the full materials list before placing a large order.