Deck Builders in Michigan: MI Deck Costs, Permits and a Faster Way to Build

Michigan homeowners have three choices: a licensed residential builder, a do-it-yourself build from raw lumber, or an A-DIY engineered deck kit. A-DIY ships the complete deck system to your driveway, and you, a friend or a local handyman can assemble it in a few hours with just a drill.

Contractor pricing in Michigan varies with deck size, material, height, footing work and local labor rates, and quotes in the Detroit suburbs, Ann Arbor and Grand Rapids tend to run higher than in rural counties. A-DIY deck kits start at $3,699 for pressure-treated wood and $5,700 for composite, typically 30–50% less than hiring a contractor. Use our deck cost calculator to compare prices in your area.

Yes. With an engineered deck kit you skip the contractor’s design fees and most of the labor while still getting a real, structural deck. Every A-DIY kit ships with the footings and hardware included, so there is no cutting, measuring or chasing down materials at the lumber yard.

No. A-DIY does not hold a Michigan builder license and does not install decks. We design, engineer and deliver complete deck kits to any address in Michigan. Assemble it yourself or hire a local handyman, carpenter or licensed builder to do it for you.

Yes. Plenty of Michigan customers have a local handyman put their A-DIY kit together. Since every component arrives ready to assemble with step-by-step instructions, the job takes a fraction of the hours a custom build would, which keeps the labor bill small.

Usually, yes. Under the Michigan Residential Code, a deck is exempt only if it is 200 square feet or smaller, no more than 30 inches above grade, not attached to the house, at least 36 inches away from it and not serving an exit door. Anything else needs a permit from your city, township or county building department, or from the state where no local department enforces the code.

Detroit permits are handled by the Buildings, Safety Engineering and Environmental Department (BSEED). You will need a Blight Clearance before applying, then a plot plan showing setbacks, footing depth, framing sizes, deck height and guard and stair details. Plans can be filed through BSEED’s ePLANS portal, so contact the department before you order or build.

Michigan amends the Residential Code so that exterior footings extend 42 inches below grade, and the building official can adjust that figure for local soil, groundwater and snow conditions. Some Michigan building departments allow shallower footings for a freestanding deck not attached to the house, while others require the full 42 inches for every deck, so confirm with your local office before you dig.

Yes. An A-DIY deck can be installed over sloped or uneven ground by adjusting the supporting post heights to create a level deck surface. Supported configurations can be elevated to approximately 40 inches using the appropriate posts, foundations and bracing.

Every A-DIY kit includes Tuff Block footings. Depending on your property, deck height and local requirements, other foundation systems may be used instead, such as sonotubes, helical piles, ground screws, in-ground posts or approved surface footing systems.

Both work in Michigan, which the state code classifies as a severe weathering zone. Pressure-treated wood is cheaper upfront and takes stain or sealer well, but lake-effect snow, repeated freeze-thaw cycles and muggy summers mean it needs regular upkeep. Composite costs more but never needs sanding, staining or sealing, resists fading and splintering, and its boards carry a 25-year warranty.

Applicable A-DIY deck configurations are engineered to hold up to 15,000 pounds when properly assembled, supported and installed according to the applicable specifications. Every A-DIY deck system also includes a five-year structural warranty.

A-DIY delivers across both peninsulas of Michigan, typically within 10–14 business days. The kit arrives with every component and all hardware included, so you can start assembling the day it shows up.

Yes. You can choose Build Now, Pay Later financing through Affirm (subject to approval), 0% split payments over up to eight months, or A-DIY Reserve, a $250 deposit that locks in today’s price for a future delivery date.

Yes. Diagrams for an applicable A-DIY configuration show dimensions, structural layout, beam, joist and post locations, lumber sizes and major connections, which can support your permit application. Your building department may still request a survey, site plan or stamped documents, and approval is not guaranteed.