The short version
A pergola is a filter, not a roof
A pergola is an open frame with slats across the top. It breaks up direct sun, carries lights and fans, and gives a patio a defined edge so it reads as a room instead of a slab. What it does not do is keep you dry, and it only shades part of the day.
That is the whole decision. If you want atmosphere, airflow, and something to grow vines on, a pergola is the right structure and the cheapest one. If you want to sit outside at four in the afternoon in August, you want something solid over your head.
Side by side
Pergola, solid cover, or louvered roof
| Structure | Typical cost |
|---|---|
| Pergola (whole structure) | $1,450 to $5,750 |
| Solid patio cover, installed | $20 to $60 per sq ft |
| Covered patio, 10 by 20 | $10,000 to $22,500 |
| Louvered roof, motorized | $55 to $125 per sq ft |
- Pergola. Partial shade that shifts through the day, no rain protection, lowest price, best airflow. Good over a seating area or a walkway.
- Solid cover. Full shade and rain protection all day, holds fans and lights easily, blocks light into the rooms behind it. Good over a dining area or an outdoor kitchen.
- Louvered roof. Both, on demand, at roughly double the cost of a solid cover. Good when the patio faces west or the room behind it needs winter light.
The most common regret we hear is a pergola built over the grill or the dining table. Those are the two spots where people want shade and cover at a fixed hour, and a pergola cannot promise either.
Good to know
Common pergola questions
How much shade does a pergola really give?
Partial, and it moves. Slats block sun when it is overhead and let it through at an angle, so a pergola that shades your patio at 1pm may do very little at 5pm. Running the slats north to south and spacing them tighter improves midday coverage. If you want the patio usable at any hour in July, a solid cover or a louvered roof is the honest answer.
Wood or aluminum?
Wood looks warmer and costs less up front. Aluminum costs more and does not warp, rot, or need to be restained every couple of years, which in North Texas sun is not a small thing. If the pergola is going up against the house and you want it to match trim, wood usually wins on looks. If you want to forget about it, aluminum wins.
Can I add a cover to a pergola later?
Sometimes, and it is worth asking before the posts go in. A pergola built to carry only its own weight may not be framed for a solid roof, snow load, or the wind uplift a closed roof catches. Telling the builder up front that a cover might come later usually costs very little at the footing stage and a lot afterward.
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