The deck and pergola mistakes Texas homeowners regret, and how to avoid them

The regrets start on paper, not on site

The biggest deck and pergola mistakes are choosing the material on up-front price alone, expecting an open pergola to give full shade, sizing the deck without planning where furniture and people actually go, ignoring which way the sun and the sprinklers hit, building something that does not match the house, and skipping approvals or the finish. Almost all of them are decided before the first board is cut, which means they are also the easiest to avoid.

At Park Cities Fence & Deck we design and build custom decks and pergolas in natural cedar and low-maintenance composite, made to fit the house and the landscape. Before fences and decks, I built custom homes, and the lesson carries over: an outdoor room is still a room. It has to fit how you live, face the right way and age well. Here are the mistakes I most often help people avoid.

Choosing cedar or composite on the sticker price

Cedar and composite are both good decking choices; they are good at different things. Natural cedar is warmer to look at and to walk on, feels like real wood because it is, and costs less up front. Composite resists fading, staining and splintering, and it does not need staining. The mistake is comparing only the day-one number.

A cedar deck needs to be cleaned and refinished regularly to keep its color and protect the surface, and boards in full sun and traffic paths wear first. If you will enjoy that upkeep, or are happy to have it done, cedar is lovely. If you know you will never refinish it, composite is likely the better long-term choice even though it costs more at the start. Our deck page also lists redwood, pressure-treated wood and PVC as options, each with its own balance of look, price and maintenance.

• Cedar: natural look and feel, lower up-front cost, needs regular cleaning and refinishing
• Composite: low maintenance, resists fading, staining and splintering, higher up-front cost
• Ask yourself honestly how much upkeep you will do over the next decade

Expecting a pergola to work like a roof

An open pergola gives filtered shade. The beams and rafters break up the sun without blocking it completely, which is exactly what makes a pergola feel open and airy. Homeowners who expect it to stop the midday sun or the rain are disappointed. If you need more shade, plan for it from the start: closer rafter spacing, a canopy or covered top, or a modern design with slatted roofs or adjustable louvers.

Also decide early whether the pergola will be freestanding or attached to the house. A freestanding pergola suits a garden, a pool or an open part of the yard. An attached pergola connects to the house and suits a patio or deck. The two are built differently, and switching late in the design means starting over.

Picking a pergola material for the photo, not for the upkeep

Pergolas come in more materials than decks, and each one asks something different of you afterward. Our pergola page lays out the main choices. Cedar and redwood have a natural look and resist decay, but like any exposed wood they weather and need refinishing. Pressure-treated lumber is strong and budget-friendly, and it is usually stained or painted. Metal and aluminum give a modern look with low maintenance. Vinyl and PVC are durable and weather-resistant.

The mistake is choosing from a photo without asking what the material will look like a few summers from now and what it will take to keep it that way. A pergola is all exposed surfaces: the tops of beams and rafters take full sun and hold rainwater, and they are hard to reach once furniture and plants are in place. If you love the look of wood and are willing to refinish it, choose wood and plan for it. If you want to install it and forget it, metal or a low-maintenance material may suit you better.

• Cedar or redwood: natural look, decay-resistant, needs refinishing
• Pressure-treated lumber: strong, budget-friendly, usually stained or painted
• Metal or aluminum: modern, low maintenance
• Vinyl or PVC: durable, weather-resistant

Ignoring the sun, the shade and the sprinklers

Stand where the deck will go at the times you will use it. A west-facing deck that is lovely at breakfast can be unusable on a summer evening, and that is when many families want to sit outside. Knowing where the afternoon sun lands tells you where a pergola, a shade tree or a screen will matter most, and where to put the seating.

Water matters as much as sun. Sprinklers that spray a cedar deck or pergola post every morning shorten the life of the wood, the same way they do on a fence. Low spots where water stands after rain do the same to framing. A pool deck adds splash and wet feet to the list, which is worth weighing when you choose between cedar and composite for that spot. Before construction, adjust or move sprinkler heads, and make sure the ground under and around the deck drains away from it.

Building the size of the yard, not the size of your life

Decks are often sized by what fits rather than by what they need to hold. Lay out the furniture you actually have or plan to buy, the grill and its clearance, the path from the back door to the yard, and where people will stand when you entertain. A deck that looks generous on a plan can feel cramped once a dining table and chairs are on it, and a deck that is far too big becomes a hot, empty platform.

Our deck page describes the main types: ground-level decks close to the ground for patios and small areas, raised decks attached to the house with stairs and railings, multi-level decks for larger spaces, pool decks, and covered decks with a roof or pergola. Picking the right type for how you use the space matters more than adding square footage.

Designing it as if the house were not there

A deck or pergola that ignores the house looks like an add-on, because it is one. Look at the house's lines, its trim color, its roof pitch and its materials. A traditional brick house and a modern stucco one call for different railing details, different pergola profiles and different finishes. The goal is something that looks like it was always meant to be there.

If you also have a fence, think about the deck, the pergola and the fence together. A cedar deck beside a cedar fence can share a stain color so the backyard reads as one design, and an iron fence can echo the railing of a raised deck. Planning them at the same time also means one design conversation, one set of approvals and one crew that knows how each piece meets the next.

The same goes for the yard. A deck that ends abruptly in bare lawn, or a pergola with nothing growing near it, never looks finished. Planting, paths and lighting tie the structure into the landscape. If the larger yard is the real project, Dirk Moser's guide to why big landscapes never look finished is worth reading before you build.

Skipping approvals, locates and the paperwork

HOAs often review decks, pergolas and other backyard structures, and cities set their own rules on what needs a permit and how close to property lines you can build. Check with your HOA and city before you finalize the design, not after. Our guide to permits and HOA approval in Dallas covers the fence side, and the same habits apply to decks: get the rules in writing, and submit the drawings and material details they ask for.

Footings and posts mean digging, and digging means an 811 utility locate first. The request is free. Treat your survey as the record of where your property ends, especially if the deck or pergola will sit near a side or rear line.

Leaving the wood unfinished, or finishing it wrong

Unfinished cedar weathers. The Western Red Cedar Lumber Association notes that cedar loses its natural color and turns gray as it weathers, and that in most climates it tends to go dark and blotchy rather than an even silver. A clear finish slows this only briefly; the same association says clear finishes typically last one or two years depending on exposure, and that pigmented stains protect against UV better than transparent ones.

The practical answer is to plan the finish as part of the project: choose a stain color with the house in mind, apply it at the right time, and put a realistic refinishing schedule on the calendar. My guide to when a fence or deck needs restaining explains how to tell when the finish has worn out and how a proper wash and restain is done.

Getting it designed and built once

When you call us about a deck or pergola, I come out myself, look at the house, the yard, the sun and the drainage, and talk through how you want to use the space. We discuss cedar against composite, freestanding against attached, and how the structure will tie into the house and any fence. You receive a free written estimate with a timeline, and we coordinate HOA details and the utility locate before construction.

An experienced team leader supervises the build, and I walk the finished deck or pergola with you before it is called complete. We build for homes across Dallas-Fort Worth, and the aim is always the same: an outdoor space that looks like part of the house and still looks right years from now.

Questions people ask me