About these listings. We list local companies whose own websites show they build decks, after checking each website and phone number (last checked November 3, 2026). Services are the ones each builder names on its website. A license number shows only when it matches Minnesota DLI records. No one pays to be listed, and a listing is not an endorsement. More about the listings

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Building a deck in Mankato

Mankato follows the Minnesota State Building Code: a deck needs a building permit if it is more than 30 inches above the ground or attached to the house, and footings must go at least 42 inches deep. Here is what Mankato adds, from the city's own pages:

You need a permit for any deck. Apply before you build. (source)

Decks up to 2 feet above grade must stay 10 feet from the rear property line. Higher decks must stay 15 feet back. (source)

Decks may not sit in the required side yard, which is 6 feet in the R-1 to R-4 residential districts. (source)

On an R-1 lot, the house, garage, deck and sheds together can cover at most 30 percent of the lot. (source)

Apply online through the city's ePortal, or bring an application, site plan and building plans to the Intergovernmental Center, 10 Civic Center Plaza. Questions: 311 or 507-387-8600. (source)

Allow at least seven working days for plan review. Schedule inspections 24 hours ahead. (source)

What a deck costs in the Twin Cities

Typical installed prices from HomeBlue's Twin Cities numbers. Angi puts new decks in Minneapolis at $27 to $54 a square foot, so many quotes land higher. Height, stairs and railings move the price most.

Deck size	Pressure-treated wood	Composite
Per square foot, installed	$19 to $23	$37 to $39
12 x 12 ft (144 sq ft)	$2,700 to $3,300	$5,300 to $5,600
12 x 16 ft (192 sq ft)	$3,600 to $4,400	$7,100 to $7,500
16 x 20 ft (320 sq ft)	$6,100 to $7,400	$11,800 to $12,500

Questions

Do I need a permit for a deck in Mankato?

Usually. Under the Minnesota building code, a deck needs a permit if it is more than 30 inches above the ground or attached to the house. Mankato adds its own rules, listed on this page. Check with the city before you build: Mankato deck and ramp regulations.

How much does a deck cost in Mankato?

Our price data comes from the Twin Cities, where decks typically run $19 to $23 a square foot installed in pressure-treated wood and $37 to $39 in composite. A 12 x 16 ft deck is about $3,600 to $4,400 in wood. Prices around Mankato can differ, so get two or three written quotes. Try the cost calculator.

Which deck builders work in Mankato?

This page lists 13 deck builders based within 30 miles of Mankato or that name Mankato on their own website, nearest first. Call a few and ask for written quotes. No one pays to be listed.

Deck builders in Mankato

Westman Remodeling

Artisan Exteriors

Mike Hansen Roofing

Rick Ites Construction

Stevensen Siding & Remodeling

Ardolf Construction Services LLC

Unique Designs Construction

GB General Construction

Brad Wilson decks and fences

H&S Homes

Netzke Shingling & Construction LLC

Planting Oaks Construction

TC Handyman Services LLC

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Building a deck in Mankato

What a deck costs in the Twin Cities

Nearby cities

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