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Prices
for the installation of new decks start off around $20.00 Per Square foot
labor and materials.
Key Issues in Building a Deck
How will the deck lay out in relation to the house?
This is probably the most basic issue since many factors will have to be
considered and accommodated in the deck plan: the home's design, access in
and out of the house (the project doubles in scope if a new door has to be
put in), the space available outside, the grade of the yard which impacts
the deck's height and existing trees or gardens.
How will
it attach to the house?
Decks can
be built free-standing. But for convenience most people do want them
attached to the house, and that raises questions about how the siding will
be cut away at the point of attachment and whether there's solid house
framing accessible at that point to properly support the deck.
How many
footings and posts will be needed to support the deck and
where will they go?
Footings
and posts support the beams which support the joists and the deck boards.
The bigger deck, the more footings you'll need.
What size
beams will be needed for the spans between posts?
There are
formulas to determine the sizes based on the spans. But the general rule
is that the more footings used on a given span the smaller the beams need
to be, so maximizing the footings will minimize the beams and vice-versa.
What size
joists will be needed at what spacing to span between beams?
Joist size
can vary from 2x6 to 2x10, and the spacing can be 12", 16" or 24"
on center. Again there are formulas to determine the sizes and the
spacing, but the bigger the deck, the bigger the joists and the closer
you'll need to space them for proper support.
What size
will the deck boards be?
The most
popular sizes are 2x4, 2x6 and 5/4x6. The most obvious difference is in
the board width: 2x4's produce more seams in a deck surface than 2x6's.
You'll need more 2x4's to cover a surface, but it ends up being about the
same amount of wood overall and about the same price.
What what
kind of wood will the deck boards be?
Redwood,
cedar and pressure-treated pine are all popular deck board
options. Each will resist moisture decay, and even though they look very
different when new they all weather to a similar shade of gray. Many
people will prefer one over the others, but your choice will probably be
determined by price, availability and quality which vary greatly for each
of the three options.
Building Permits
Most
municipalities will require a building permit for the construction of any
deck, especially if it's to be attached to the house or it's more than 30
inches above ground.
It's an
important part of the process because of the health and safety issues
involved and because of the money it can save you by spotting potential
problems, avoiding damage and repairs later on. Plus some homeowners
insurance policies will not cover accidents involving construction that does
not meet local codes.
There's a fee
involved with most permit applications, but it's designed to cover the cost
of a plan review before construction and the field inspections
that'll be done after work begins.
During the
plan review, local code officials can note code conflicts in your plan
before materials are purchased and make suggestions as needed.
Field
inspections help insure that you're installing materials safely and
according to code, so be sure to find out what inspections are required in
your area.
For example,
in areas where frost footings are required, they'll probably want to inspect
the depth of your footings before you fill them so don't forget to call them
when you get to that stage.
NOTE: The
plan review and inspections are not designed to be a guarantee of the work
but are done to improve the building safety in the community for the life
of the structure.
Materials
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If you bring them the dimensions, most home centers and lumberyards will
quickly estimate the amount of lumber and other materials and arrange
delivery to your home when you're ready to start building.
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- Lumber
options are limited since the framing should all be pressure-treated pine
or the heartwood of decay-resistant species such as redwood or cedar to
prevent moisture decay (required by code in most areas) and the sizes are
determined by the plan.
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- Note that
columns and posts in contact with the ground or embedded in concrete must
be of special pressure-treated wood approved for ground contact.
Call us for a free
deck or porch estimate / quote.
We will be more than happy to help with all Issues listed above.
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