Decks Fitted to the House Before the First Post Is Set
Deck addition in Scranton for older homes where door height, grade change, and foundation wall configuration determine how the structure has to be designed
On a house built several decades ago, the back door threshold, the grade of the yard, and the height and material of the foundation wall are already fixed. A deck that doesn't account for all three before the first footing is dug will end up with a ledger board that doesn't sit correctly, stairs that land at an awkward angle, or a deck surface that doesn't align with the door threshold and needs a step where none was intended. Litvin & Sons starts every deck build by measuring how those existing conditions will meet the new structure, so the design is driven by what the house actually presents rather than a standard layout applied regardless of site. The owner handles the work personally from footings through final railing, keeping the build consistent at every stage.
Footings and posts are set first, sized and spaced for the deck load and the local frost depth. The frame is built next, then decking is installed, and railings are attached last. The ledger connection to the house is made with proper flashing and fasteners rated for the decking material so the connection doesn't trap moisture between the ledger and the house framing. Pennsylvania contractor license No. 4498 covers the full deck build.
Arrange an on-site measurement to determine how your home's door height, grade, and foundation wall will shape the deck design before materials are selected.
What Changes After the Deck Is Complete and Why It Lasts
The ledger board connection is the detail that separates a deck that remains stable from one that begins to pull away from the house within a few years. In older homes in Dunmore and similar communities, the house framing behind the siding is often dimensional lumber that has dried and settled over decades, which means the fastener pattern for the ledger has to account for where solid wood is actually located rather than where it would theoretically be in newer framing. Flashing is installed to direct water away from the ledger-to-rim connection, because moisture trapped at that joint is what causes the ledger to fail long before the rest of the deck shows any wear.
Once the deck is complete, the surface is level across its full span, the railing posts are set in blocking that is part of the frame rather than surface-mounted to the decking, and the stairs land at a finished grade that doesn't require a step-up or step-down at the door threshold. Those are the observable markers of a deck that was laid out correctly from the start rather than adjusted to fit after framing was standing.
Decking material selection affects fastener type, spacing between boards, and how the frame is sized, so that decision is made before framing begins rather than after.
Composite decking, for example, requires hidden fasteners and a closer joist spacing than pressure-treated lumber, which changes the framing plan if the material choice isn't locked in at the start.
What Property Owners Ask About the Work
The questions below address how a deck addition is actually built, including the structural and design decisions that are specific to fitting a new deck onto an existing older home.
How is the ledger board flashed to prevent moisture from getting behind it?
Flashing is installed in a continuous run over the ledger and tucked behind the house's water-resistant barrier or siding so any water that runs down the wall face is directed over the top of the flashing and away from the ledger-to-rim connection rather than into it.
What determines how deep the deck footings need to be set?
Footings are sized and set to a depth that keeps them below the frost line for the area, and the diameter is calculated based on the tributary load each post will carry, which varies with the deck's span and the spacing between posts.
How does the grade of the yard affect the deck's stair design and overall height?
The finished deck height is set at the door threshold, and the grade between that height and the yard determines how many stair risers are needed and whether the landing requires a separate concrete pad or can bear directly on compacted ground.
Why are railing posts set in the frame rather than surface-mounted to the decking?
Posts that are bolted into the rim joist or structural frame transfer lateral load into the structure rather than through decking fasteners, which means the railing stays rigid over time rather than developing movement at each post base where the fasteners work loose.
How does building a deck on a Scranton-area older home differ from a straightforward new build on a level site?
Older homes often have foundation walls at variable heights, settled grades, and doors set at heights that don't correspond to a standard deck elevation, so the layout requires field measurement and adjustment at every connection point rather than applying standard dimensions from a plan.
Litvin & Sons also builds decks in Wilkes-Barre, Dunmore, Clarks Summit, Pittston, and Lake Wallenpaupack. To get an accurate layout based on your home's actual door height, grade, and foundation configuration, call Litvin & Sons at (570) 909-4778 and set up a site measurement before your project is scoped.