Attached and freestanding decks for houses in Torrington, Litchfield, New Milford, and the rest of Litchfield County. Built on proper footings, framed for our snow, and finished in the boards you choose.
What goes into a new deck
A new deck looks simple from the yard: posts, a frame, boards, and a railing. Most of the work that decides whether it lasts ten years or thirty happens before the first board goes down.
The job usually runs in this order:
- Site visit and measurements. The builder looks at where the deck meets the house, how the ground slopes, where the doors are, and what’s under the soil. Ledge is common in this part of Connecticut, and it changes how footings get dug.
- Drawing and permit. Your town’s building department wants a plan showing footing size and depth, beam and joist sizes, spans, ledger attachment, and railing height. The builder draws it and files for the permit.
- Call Before You Dig. Connecticut law requires a call to 811 before digging. Gas, electric, and cable lines get marked, usually within a few days.
- Footings. Holes go at least 42 inches below grade, which is the frost depth in Connecticut. The footing hole is inspected before concrete is poured.
- Framing. Ledger, posts, beams, and joists go in. The frame gets its own inspection on most jobs.
- Decking, stairs, and railings. Boards, fascia, stair stringers, treads, and guards go on.
- Final inspection. The building official signs off and the permit is closed.
On a typical 12 by 16 foot attached deck, the building itself takes about three to six working days. Waiting on the permit and inspections often takes longer than the carpentry.
Attached or freestanding
Most decks here are attached to the house with a ledger board bolted to the rim joist. That’s a solid way to build when the ledger is flashed and fastened correctly. It is also where most deck failures start when it isn’t.
A freestanding deck carries itself on a second row of posts and a beam next to the house, so nothing is bolted to the house. Builders use it when:
- The house has brick or stone veneer, which can’t carry a ledger.
- The floor framing is cantilevered over the foundation.
- The rim joist is in poor shape or hard to reach.
- The homeowner wants to avoid any chance of water getting into the house wall.
A freestanding deck costs a little more because of the extra footings and beam. Ask the builder which method fits your house and why.
Picking a size
A deck that looks big on paper can feel small once a table and a grill are on it. Some rules of thumb builders use:
- Grill and two chairs: about 8 by 10 feet.
- Table for four to six: at least 12 by 12 feet.
- Table plus a seating area: 14 by 20 feet or more, or two levels.
- Stairs: each step adds about 10 to 11 inches of run. A deck 6 feet off the ground needs about 9 or 10 steps, which takes up roughly 8 feet of yard.
Also think about where the sun goes. A west-facing deck gets hot afternoon sun, which matters for dark composite boards. A north-facing deck stays damp longer, which matters for wood.
Materials
The frame is almost always pressure-treated southern yellow pine, rated for ground contact where it touches or sits close to the soil. The choice you make is mostly about the boards and the railing.
| Decking | Installed cost per sq ft | Lasts | Upkeep |
|---|---|---|---|
| Pressure-treated pine | $35–55 | 15–20 years | Stain every 2–3 years |
| Cedar | $45–65 | 15–20 years | Seal every 1–2 years |
| Composite (Trex, TimberTech, Fiberon) | $60–90 | 25–30+ years | Wash once a year |
| PVC (Azek, TimberTech Advanced PVC) | $70–100 | 30+ years | Wash once a year |
These are ballpark 2026 numbers for Litchfield County with basic stairs and railing. See the deck cost guide for more detail, or read about composite and PVC decking.
Built for Litchfield County weather
The northwest corner of Connecticut gets more snow and colder winters than the shoreline. That affects a deck in three ways.
Frost. Footings that stop short of 42 inches can heave as the ground freezes and thaws. You’ll see it as posts that rise, stairs that pull away, and boards that hump up in the middle by March.
Snow load. Towns in Litchfield County have some of the highest design snow loads in the state. Beams and joists have to be sized for it, and a builder who mostly works in warmer places may undersize them.
Moisture. Wet springs and shaded, wooded lots keep decks damp. Joist tape on top of the framing, good airflow underneath, and the right fasteners for treated lumber all slow down rot.
What to ask a deck builder
Before you sign, ask:
- Are you registered as a Home Improvement Contractor with the Connecticut Department of Consumer Protection? You can check at elicense.ct.gov.
- Will you pull the permit, and who meets the inspector?
- How deep are the footings, and how will the ledger be flashed and fastened?
- What joist spacing will you use for the boards I picked?
- What’s included in the price: stairs, railings, fascia, lighting, haul-away of the old deck?
- What’s the payment schedule? Connecticut home improvement contracts must be in writing, and you have three business days to cancel after signing.
Common questions
Do I need a permit for a new deck?
Almost always. Attached decks and most freestanding decks over a small size need a building permit in Connecticut, plus footing and framing inspections. Zoning setbacks also apply, and lots near lakes, rivers, or wetlands may need a separate review. The builder handles the paperwork.
How long does a new deck last?
A well-built pressure-treated deck lasts 15 to 20 years with regular staining. Composite and PVC boards on a good frame can last 30 years. The frame is usually what ends a deck’s life, so the framing details matter more than the boards.
When is the best time to build?
Decks can be built from spring through late fall. Most local builders book their spring and summer work over the winter, so getting an estimate in the off-season usually means an earlier start date.
Can a deck be built in winter?
Framing and boards can go on in cold weather, but footings are hard to dig in frozen ground. Some builders dig and pour footings in late fall and finish the deck later. Ask what your builder prefers.
Tell us about your deck.
Size, what’s wrong with it now, or what you’d like to build. Photos help.