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How much will my project cost?

Often when people call us about a project, they have no idea how much something will cost – and why should they? Building an outdoor project is not something you do every day. But we do it every day, so we have put together the following general price guidelines to help you plan for your project.

Wood decks – An attractively-designed wood deck made from premium decking boards with wood railings and a few stairs can run from $7,000 on up. Premium wood decking means the wood is mostly free of knots and defects. We have built extensive, large wood decks with lots of amenities for as much as $75,000. The average cost of the wood decks we build is between $10,000 and $20,000. The biggest variables in the cost of a wood deck are size, height off the ground, choice of railing types, and deck skirting.

Pressure treated deck

Composite decks – Composite decks, with decking boards made of PVC or other man-made materials, are a step up from wood decks both in cost and life expectancy. There is a wide range of very nice composite decking materials to choose from. Moderately-priced composites can increase the cost of a deck by about 40% compared to the cost of pressure-treated decking. The most expensive composite decking may double the cost of the project compared to wood. However, often our customers feel this cost is well worth the expense in terms of lower maintenance costs and extended life of the deck.

Most people make composite choices based on price, color and texture. Our experience has been that all of the brands of composite decking we offer are high quality and should last for 25+ years. This seems to hold true regardless of the cost range of the decking board. As a rough guideline, composite decks, including stairs and railing, start at around $12,000, with the average price ranging around $25,000. Factors that affect the price of a composite deck are choice of composite material and choice of railings, as well as size and height.

A word of warning about composite decks – composite materials are expensive! Make sure you select a builder who has experience installing composite materials. There are many differences between building a wood deck and a composite deck. If manufacturer’s specifications are not followed during construction the warranties provided by the manufacturer may be voided.

Screened Porches – Screened porches introduce an added level of complexity due to the roof structure. Often a porch requires that the builder cut into your existing roof to tie the new roof in to the old. This is where experience and engineering resources become important to ensure that your builder doesn’t get in over his head. Also, be aware that roof leaks do happen. So it’s important that you use a builder you know is going to be around if a problem shows up months or even years later.

There are many materials and amenity choices that will affect the cost of your porch. Our fully built-out screened porches (including new foundation, deck structure, and roof) generally start at around $20,000, with the average cost around $32,000. If you have an existing patio and/or roof structure, this cost can be much less. Your Archadeck design consultant can help you navigate the various decisions that will affect the cost of your project.

Sunrooms – The word sunroom means different things to different people. Normally, we think of a sunroom as an insulated, heated, and cooled year-round space attached to your house. We build a sunroom with the same level of foundation, structure, trim, and finishes as the rest of your home. Our goal is to design and build it to look like it was always there rather than an afterthought.

Sunrooms usually have a lot of windows to let the sunshine in. Often, when people ask us to build a sunroom, they are addressing a specific need that their house lacks. Perhaps they want a place to sew, to read, or to gather with friends. Because sunrooms represent air-conditioned space, they add to the square footage of your house. That means a sunroom will directly add value to your home when you decide to sell the house.

Usually our sunrooms start at around $30,000, while the average price is around $50,000. We often convert existing porches into fully finished sunrooms, and the cost of these conversions is much lower, starting at $15,000 and averaging $22,000. The biggest cost factor in a sunroom is usually how it will be heated. We’ll determine whether it can be tied in to your existing HVAC system. If not, we can add a new system to heat and cool the new space. Room size and flooring choices can also have a significant impact on the cost.


Patios/Hardscapes – The range of choices here is almost unlimited, so it’s difficult to pin down pricing, but here are some guidelines:

  • Basic concrete is the most economical option, with patios starting around $4,000.
  • Stamped and stained concrete patios start at around $7,000.
  • Paver patios start at around $8,000.
  • Natural stone patios such as flagstone start at around $10,000.
  • Firepits can range from $1,000 for manufactured block fire pits to $5,000 for custom stone fire pits.
  • Outdoor fireplaces can cost from $5,000 to $30,000 depending on size and stone choices. Outdoor kitchens start at around $6,000 up to $20,000 depending on size and choices of appliances.

Patio with outdoor fireplace

Factors significantly affecting the cost of hardscapes include project size, soil conditions, drainage, slope, roots and rocks, and accessibility of the area. Your Archadeck design consultant can help evaluate these factors on your specific project.

These are some rough guidelines to get you started. Your Archadeck design consultant can help you understand your options and how they affect your budget. We encourage you to be prepared to openly discuss your budgetary ideas with us during your design consultation. Understanding your budget helps us propose something that will work for you. Once we agree on a specific scope of work and sign a contract, your price won’t change unless you decide to make changes along the way.

Call us today for a personal consultation with one of our designers – there is no charge for this service. Or come by our showroom at 1427 Gregg Street to look at samples and ideas to see what Archadeck can do for you. You can reach us by phone at (803) 784-1566 or via email at

Archadeck of central south carolina team

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