Deck Building Cost in Montpelier, VT (2026)
Updated October 2026 · Montpelier, VT · index 0.97
How much does it cost to build a deck in Montpelier? For a 300 sq ft deck with pressure-treated wood, homeowners in Montpelier, VT pay about $10,900 on average, and most quotes land between $7,550 and $14,300 — $25 to $48 per sq ft. The price covers plans and the permit, footings, a framed and flashed structure, the deck boards, railing, one set of stairs, fascia and cleanup.
The deck building price in Montpelier runs 3% below the U.S. average: construction labor in the Montpelier area runs 6% below the national mean, materials 2% above. The same job averages $11,300 nationally and about $10,900 at the Vermont statewide index.
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Deck building price in Montpelier by decking material
What a 300 sq ft deck costs in Montpelier with each decking material, installed:
| Option | Average · range |
|---|---|
| Pressure-treated woodtreated pine or fir boards, stained and sealed$36 per sq ft | $10,900$7,550 – $14,300 |
| Capped compositehidden fasteners and a picture-frame border$44 per sq ft | $13,100$9,300 – $16,900 |
The least expensive option in Montpelier is pressure-treated wood, at about $10,900; capped composite averages $13,100, 1.2 times as much.
Cost to build a deck in Montpelier by size
With pressure-treated wood, priced for Montpelier, VT:
| Size | Average · range |
|---|---|
| A 200 sq ft deck$39 per sq ft | $7,850$5,350 – $10,300 |
| A 300 sq ft deck$36 per sq ft | $10,900$7,550 – $14,300 |
| A 400 sq ft deck$35 per sq ft | $14,000$9,750 – $18,200 |
Some costs stay the same whatever the size — plans, permit and layout, one set of stairs (4 steps), final inspection and cleanup — so a bigger job costs less per unit: $35 per sq ft for a 400 sq ft deck against $39 for a 200 sq ft deck.
What a deck building in Montpelier includes
Line by line, the $10,900 average for a 300 sq ft deck breaks down like this: 47% labor, 53% materials and equipment.
| Line | Low – high |
|---|---|
| Plans, permit and layout | $360 – $1,050 |
| Ground prep, fabric and gravel | $210 – $540 |
| Footings below the frost line | $400 – $800 |
| Flashed ledger on the house | $240 – $470 |
| 6x6 posts | $270 – $540 |
| Beams | $240 – $470 |
| Joist framing with hangers | $1,400 – $2,350 |
| Deck boards | $1,300 – $1,950 |
| One set of stairs (4 steps) | $500 – $1,000 |
| Railing | $1,850 – $3,200 |
| Fascia and skirting | $350 – $830 |
| Final inspection and cleanup | $140 – $360 |
| Stain and seal, two coats | $320 – $750 |
Each line is the price book's U.S. rate for that step, scaled by 0.74 to the installed price published sources give for the whole job (see how these prices are built), times Montpelier's index of 0.97; permit fees are not scaled.
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What affects deck building prices in Montpelier
Labor and materials in Montpelier
Construction wages in the Montpelier area run 6% below the U.S. mean (BLS, May 2025), and materials in its ZIP codes price 2% above the national average. Together they give Montpelier a construction cost index of 0.97.
Where Montpelier sits in Vermont
Montpelier is the 2nd most expensive of the 3 Vermont cities in our index, against a statewide index of 0.97. Burlington is the dearest at 1.01; Rutland is the least expensive at 0.93.
Against the rest of the country
Of the 306 U.S. cities in JobFlex's index, Montpelier ranks 188th from the most expensive. The job that averages $10,900 here averages $11,300 at the national rate.
Frost depth in Vermont
Deck footings go below the frost line, or they heave by the second spring. The typical code frost depth in Vermont is about 48 in. — deep holes, more concrete and more digging time than in the South. Your building department sets the exact figure.
The deck code in Vermont
There is no statewide code; decks follow the International Residential Code as the cities and counties of Vermont adopt it (Burlington and Rutland City enforce the 2025 Vermont Fire & Building Safety Code; owner-occupied one- and two-family homes have no state residential code). Guards are required at 36 in. where the deck is more than 30 in. up, and stair risers can be up to 7.75 in.
What decks are built of in Vermont
Most used on decks in New England: treated pine, then capped composite, then PVC.
Sales tax in Vermont
Vermont's base state sales tax is 6%, and cities and counties can add their own. How it applies to a home-improvement contract varies, so ask whether a quote includes it. Prices on this page are before tax.
What a Montpelier contractor will ask before quoting
- Reuse the frame or rebuild?
- Height, railing style and stairs
- Board brand and color
Deck building cost in other Vermont cities
A 300 sq ft deck with pressure-treated wood averages $10,900 in Montpelier; $11,400 in Burlington, $10,500 in Rutland.
| City | Average · range |
|---|---|
| Burlington, VT4% more | $11,400$7,850 – $14,900 |
| Rutland, VT4% less | $10,500$7,250 – $13,700 |
deck building price in Montpelier: questions
How much does it cost to build a deck in Montpelier, VT?
About $10,900 for a 300 sq ft deck with pressure-treated wood, and most Montpelier quotes fall between $7,550 and $14,300. That is 3% below the U.S. average, where the same job averages $11,300.
What is the deck price per square foot in Montpelier?
$25 to $48 per sq ft, about $36 on average with pressure-treated wood. Smaller jobs cost more per unit, because the fixed costs are spread over less.
How much is a 400 sq ft deck in Montpelier?
$9,750 to $18,200, about $14,000 on average, with pressure-treated wood — $35 per sq ft.
Do you need a permit for deck building in Montpelier?
Yes — a new deck needs a permit nearly everywhere, Montpelier included. In Vermont, decks follow the International Residential Code as the cities and counties of Vermont adopt it (Burlington and Rutland City enforce the 2025 Vermont Fire & Building Safety Code; owner-occupied one- and two-family homes have no state residential code). The prices on this page carry $360–$1,050 for plans, permit and layout.
Does the price include sales tax in Vermont?
No. The prices here are before tax; Vermont's base state rate is 6%, plus any local rate.
What decking do people choose in Vermont?
Most used on decks in New England: treated pine, then capped composite, then PVC.
Other home projects in Montpelier
Deck building cost in Vermont
How these prices are built
Every price on this page comes from JobFlex's contractor price book: what a homeowner pays a licensed contractor for each step of the job, as a U.S. national average per unit, with the contractor's overhead and profit included and sales tax left out. The deck building is priced step by step, then multiplied by Montpelier's construction cost index of 0.97.
Where the price book's steps for an option add up to more than 20% over the installed price a published source gives for the whole job, every step but a permit fee is scaled down to the middle of that range: pressure-treated wood × 0.74 (HomeGuide 2026: $25–$50 per sq ft); capped composite × 0.80 (Ergeon 2026: $30–$60 per sq ft).
The index weighs local construction wages (BLS Occupational Employment and Wage Statistics, May 2025) at 60% and the area's material prices (Craftsman ZIP-area factors) at 40%. Published indices for Montpelier, each on its own base: HUD 1.03, Craftsman 0.98. Treat any city figure as about ±5%; a contractor's quote for your house is the number to plan with.
Contractors in Montpelier build quotes like these with JobFlex's Deck Studio.
- HomeGuide 2026: pressure-treated deck $25-$50/sqft installed, labor $15-$30/sqft
- Ergeon 2026: composite deck $30-$60/sqft installed
- HomeGuide 2026: composite railing $25-$60/lf, aluminum $50-$200/lf installed