Material choice in the desert is mostly about heat and sun. Frost, which drives these decisions in colder states, hardly counts here.
The dollar figures on this page are national ranges that HomeGuide published for 2026. They are not quotes from The Scottsdale Concrete Company. Labor rates in the Phoenix area, material prices, truck access and what lies under your slab all shift the real number. Last checked October 2026.
Concrete or asphalt for a driveway?
For a house in Scottsdale, concrete is the usual answer. Asphalt is cheaper at first, at $5 to $12 or more per square foot nationally against $6 to $15 for concrete. But asphalt is black and soft. It gets very hot in summer, can scuff and rut under tires on the hottest days, and dries out and fades under strong sun unless it is sealed regularly. Asphalt makes more sense on a very long rural drive where the square footage is large.
Poured concrete or pavers?
Pavers cost more to lay, at $10 to $17 per square foot nationally for a patio against $4 to $12 for plain concrete. In return, a paver that shifts or stains can be lifted and reset, and there are no cracks to worry about. Poured concrete is one solid surface with fewer places for weeds and ants. Many HOAs in north Scottsdale favour pavers or coloured concrete on driveways, so check your design guidelines before choosing.
How thick should a concrete driveway be?
Four inches is the usual minimum for cars and light trucks, on a compacted base. Go to 5 or 6 inches for a motorhome, a loaded trailer or regular delivery vehicles. Thickened edges help where tires roll on and off the slab.
Do I need rebar or wire mesh?
For a driveway, yes, one or the other is worth having. Rebar or wire mesh will not prevent cracks, but it keeps the pieces locked together and level. Rebar on a grid is the stronger choice and stays where it is put if it sits on supports. Mesh only works if it ends up in the middle of the slab and not on the dirt. Fibers mixed into the concrete help with early shrinkage cracks, which matter a lot in dry heat.
What PSI concrete do I need?
Most home driveways and patios are poured with a mix rated between 3,000 and 4,000 PSI. Scottsdale's building code table rates weathering here as negligible, so the higher strengths and air entrainment that cold states need for frost are not required for that reason. Heavier loads, such as a shop floor or a pad for trucks, call for a stronger mix. The amount of water added on site matters as much as the number on the ticket.
Is stamped concrete worth it?
Stamped concrete is worth it if you want the look of stone or tile and accept the upkeep. It costs $8 to $19 per square foot nationally. Here the upkeep is resealing, because sun wears sealer quickly, and dark colours get hot under bare feet. Light, earthy tones and a textured pattern suit a desert yard. Avoid a high-gloss sealer around a pool.
Should I seal my new concrete, and how often after that?
Plain gray concrete in this climate does not have to be sealed, since there is no freeze and thaw to protect it from. Sealing still helps against oil, rust and hard-water stains. Coloured and stamped concrete should be sealed, after the slab has cured for about a month. How often depends on sun exposure: plan on every two to three years for decorative work in full sun. Cleaning and sealing costs $1 to $3 per square foot nationally, or $575 to $1,700 for a two-car driveway.
Broom finish or smooth finish, and what about a steep driveway?
Choose a broom finish outdoors. It grips when wet and hides wear. A smooth troweled finish belongs in a garage or indoors, because it is slick in rain. A salt finish, which leaves small pits, is a popular desert choice for patios and pool decks. For a steep driveway, common in the foothills, ask for a heavy broom across the slope or grooves, so tires and shoes hold during a storm.
What does a hot tub pad need?
A hot tub pad needs to be level and strong, because a filled tub with people in it weighs several thousand pounds. Use a reinforced slab on a compacted base, sized a little larger than the tub, with a slope in the surrounding concrete to carry splash water away. Follow the manufacturer's pad specification. Plan the electrical conduit before the pour, not after.
What does a shop slab for a vehicle lift or heavy equipment need?
Start with the lift maker's requirements. A vehicle lift bolts to the floor, and the manual states a minimum thickness and concrete strength at the posts. Those are often more than a standard garage floor. We thicken the slab at the post locations and keep joints away from the anchors. A shop slab for heavy equipment is designed around the heaviest wheel load. If the slab is the floor of a new building it needs a permit.
Do I need gravel under a slab, and do I need a vapor barrier?
You need a firm, even base. Whether that means gravel under the slab depends on the native ground. Well-compacted desert granite can carry a patio directly. Clay or loose fill should be replaced with compacted aggregate base. A vapor barrier belongs under any slab that will be enclosed, such as a house, garage conversion or casita floor, to keep ground moisture from coming up through flooring. An open patio or driveway does not need one.
My pad has to take delivery trucks. What changes?
Thickness, base and joints. A pad that takes a delivery truck, a propane truck or a trash truck should be at least 6 inches thick with rebar, on a deeper compacted base, with joints closer together and doweled where trucks cross them. Tell us the heaviest vehicle and how often it comes. Light-duty residential concrete cracks quickly under a loaded truck.
My pool deck is worn. Resurface, pavers or new poured concrete?
Resurface a pool deck that is solid underneath. National figures put that at $3 to $6 per square foot. The textured acrylic coating many Arizona pools have, often called cool decking, can be renewed and stays more comfortable under bare feet than plain or dark concrete. Choose pavers or a new pour if the deck has sunk, drains toward the pool coping or is badly cracked. Travertine and light pavers also stay cool.
My patio is poured against the house. What goes between them?
An isolation joint. That is a strip of compressible material that separates the patio from the foundation so each can move without pushing on the other. It matters here because slabs expand a good deal in summer heat. The joint is then sealed on top to keep water out. The patio surface should also sit below the weep screed at the base of a stucco wall.
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