Start With the Structure Beneath the Deck Boards
Replacing deck boards can make sense when the existing frame is sound, properly built, and has enough useful life remaining for the new surface. The decision changes when the structure shows problems that new decking cannot correct.
Marc Unnasch and the Deckology crew review the existing structure before recommending a re-skin or a complete replacement. That evaluation can include the condition of posts, beams, joists, connections, framing alignment, and other parts of the deck that may be hidden until boards are removed.
Older frames can develop rotted posts, weak post-to-beam connections, split joists, sagging, uneven framing, and fastening damage. Freeze-thaw cycles and old screw holes can also add stress to aging lumber. Installing a long-life decking product over a frame with limited remaining life can leave the homeowner paying for structural work after the surface has already been replaced.
When the frame is suitable for continued use, Deckology can explain why. When it is not, a complete rebuild allows the project to start from the structural system rather than covering problems that will need attention later.

What We Look At Before Recommending Replacement
The goal is not to assume every older deck needs to come down. It is to understand the condition of the structure before new materials are installed.
Posts and footings, including visible deterioration or conditions that affect the support system.
Beams and post-to-beam connections, including weak or questionable connection details.
Joists, including splitting, sagging, uneven framing, and damage around previous fasteners.
Framing layout and alignment, including whether the structure provides a sound base for the selected decking.
Water exposure and moisture protection details that can affect framing life.
The relationship between the remaining life of the structure and the expected life of the new decking and railing.
The recommendation should match what is actually found. A sound structure may support a surface replacement. A compromised or short-life frame may point toward a full rebuild.
DECK RAILING
We source most of our deck railing systems from Westbury, offering the most comprehensive and high quality deck and porch railing options on the market. From aluminum, cable, mesh and glass railing systems, our railing systems offer unbeatable durability to withstand the harsh Minnesota climate while also offering minimal maintenance and an aesthetic finish.


cable railing
Made from high-quality aluminum, cable deck railing is a great investment for both residential and commercial projects, ensuring years of beauty and durability backed by a limited lifetime warranty. Choose from vertical or horizontal designs to bring your dream porch, deck, or patio to life.


glass railing
Upgrade your deck, porch or balcony with the Westbury Veranda glass deck railing system that offers durable and lightweight powder coated aluminum rails and posts with tempered glass panel infills. The expansive glass panels provide unobstructed views, allowing you to enjoy the beauty of your surroundings.

Complete Deck Replacement & Rebuilds in Southeast Minnesota
A new deck surface can only perform as well as the structure supporting it. Deckology helps homeowners evaluate what is worth keeping, what needs attention, and when a complete tear-down and rebuild is the better path for the project.
Based in Mantorville, Deckology serves homeowners across Southeast Minnesota, including Rochester and nearby communities.
What a Complete Deck Rebuild Can Include
A complete rebuild gives Deckology the opportunity to address the deck as one system, from the support structure through the finished surface. The exact scope depends on the home, the existing deck, the new design, and site conditions.
Removal of the existing deck where full replacement is recommended.
New structural framing based on the approved project scope.
Footings, posts, beams, joists, blocking, and connections as required by the project.
Framing protection details, including joist tape where used.
Composite, cedar, or other confirmed decking selections based on the project.
Railing, stairs, and related finish components.
Lighting and other deck features when they are part of the approved design.
Deckology uses 12-inch-on-center joists, screw-fastened framing, mid-span blocking, joist tape, and PWT treated LVL beams on most projects. Those details are part of the reason the company puts so much emphasis on what sits below the visible deck surface.


A Rebuild Can Change More Than the Deck Boards
When a deck is taken down to the structure or replaced completely, the project can be reconsidered around how the homeowner wants to use the space now. That may include changes to layout, stairs, railing, lighting, material selection, or how the deck connects to other outdoor-living features.
This is also the point where construction decisions can be coordinated instead of treated as separate fixes. Framing, water protection, decking, railing, and finish details can be planned together around the new project rather than around the limitations of an aging structure.






Compare the Full Scope,
Not Just the Finished Surface
Deck replacement proposals can look similar at first glance even when the work underneath is different. Marc has found that homeowners often need help comparing what each contractor is actually including.
When reviewing proposals, look beyond the decking brand and railing style. Ask what is happening to the existing frame, what structural components are being replaced, how framing will be protected, what connection details are included, and whether the proposed structure is appropriate for the surface materials being installed.
A lower initial number may represent a different scope rather than the same project for less money. Deckology's approach is to explain the construction decisions behind the proposal so homeowners can compare the work on the same basis.

Build the New Deck Around the Right Materials
A complete replacement opens up material choices that may not fit an older frame or layout. Deckology works with composite and cedar decking, aluminum and glass railing options, deck lighting, and alternative framing systems.
Material decisions are considered alongside the structure. The framing has to support the finished deck, the railing has to work with the design, and water protection details need to be considered before the boards go down.
Deck Replacement for Rochester and Southeast Minnesota Homes
Deckology is based in Mantorville and works within a focused Southeast Minnesota service area. The company serves Rochester and selected nearby communities where homeowners are planning substantial deck replacements, custom decks, and outdoor-living projects.
The strongest fit is a project where the homeowner wants the existing structure evaluated carefully and wants the replacement planned around long-term structural value, material performance, and direct owner involvement.


That depends on the condition and remaining life of the existing structure. Deckology reviews the frame before recommending either approach. If the structure is sound and suitable for the selected decking, reuse may be possible. If the frame has deterioration, weak connections, splitting, sagging, uneven framing, or limited remaining life, a complete rebuild may be the better long-term choice.
A frame may be reused when it is sound and provides a suitable base for the new deck surface. Deckology does not assume that every existing frame should be removed, but the structure needs to be evaluated before new materials are installed.
Marc has encountered rotted posts, weak post-to-beam connections, split joists, sagging, uneven framing, and fastening damage on older decks. Some conditions are difficult to judge from the finished surface alone.
The scope depends on the project. A full rebuild can include removal of the existing deck, new structural framing, footings, posts, beams, joists, blocking, connections, decking, railing, stairs, lighting, and other approved features.
A complete rebuild can create an opportunity to reconsider layout, stairs, railing, lighting, and how the deck connects to the home and surrounding outdoor space. The final options depend on the property, design, and approved project scope.
It can when the frame is structurally sound, properly configured for the selected product, and has enough useful life remaining. Deckology evaluates the existing structure before recommending that new composite decking be installed over it.
Compare the scope beneath the surface as well as the visible materials. Look at what happens to the existing frame, which structural components are included, how framing is protected, what connection details are specified, and what decking, railing, and finish items are part of the proposal.
Talk With Marc About Your Existing Deck
If you are deciding between replacing the deck boards and rebuilding the structure, start with an evaluation of what is already there. Deckology can review the project, discuss the condition of the existing deck, and explain the recommended scope before construction decisions are made.
Unnasch Construction offers interior remodels, skylight and sun tunnel installation and more. Deckology specializes in transforming your outdoor living space through custom decks, patios, porches and accessories. Based in Mantorville, Minnesota, they serve the entire southeast region of Minnesota.
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MARC UNNASCH
MN License #BC740061