Cut stair treads so that they overlap the stringers by about 1" on both sides. If the stair width is 36”, cut treads 38”. Push one tread against the back of the stringer, center, and fasten with two 3” galvanized deck screws per side. Leave 1/4” between the first and second tread board and attach with deck screws.
Though you don’t have to worry about proper ledger attachment and flashing when you build a freestanding deck, you do have to figure out how it will support itself without the help of a big, strong house.
When compared to installing a few posts and foundations, there is little return for the cost and labor associated with a retro-fitted balcony deck. If considering this type of deck during the home construction, bear in mind the difficulty in the future to repair or rebuild it.
Even better, Falk says, is to avoid attaching the deck to the house in the first place. A freestanding deck, built on posts so that a 1-inch gap separates it from the house, allows water to drain with no damage to the house. However, the posts need cross-bracing to keep the deck from wobbling.
The cost estimate includes: Costs for local material / equipment delivery to and service provider transportation to and from the job site. Costs to prepare the worksite for Stairway Installation, including costs to protect existing structure(s), finishes, materials and components.
For example, an outdoor staircase with five steps is going to cost a lot less than a winding indoor staircase with 24 steps. Nonetheless, the average staircase cost is $2,100, with most homeowners paying between $1,200 and $3,000.
If you build a deck on a first floor, code requires an electrical receptacle. It should be a GFCI-protected unit, enclosed in appropriate housing. However, on a second story this does not apply. Or so the inspector told us. Call your local building department to make sure they are in agreement. Hopefully this was of help to you.
Attic Staircase: Even less expensive are attic stairs. They generally drop from the ceiling and are thin, but strong pieces of wood. The cost to install attic stairs should not exceed $1,000. Exterior Stairs Cost. Exterior stairs do not cost as much as interior stairs, but they do come with more red tape.
Decorative Support Posts on High Decks. The larger posts will contribute “weight” to the design, but large PT posts are often unsightly. Cedar posts can be used and are lighter and easier to cut, but cost several times as much as PT posts. 1x cedar, or composite face plates, installed on all four faces of a treated post create a “wrap” that turns an ugly post into a decorative column.
A: Jim Finlay, owner of Archadeck of Suburban Boston, in Burlington, Mass., responds: At a second floor you have no foundation, but you do have the house frame. Presuming the house is not balloon-framed, there will be a second-floor rim joist available; in fact, the existing deck’s ledger is probably attached to that rim joist.