Before buying: measure the real slab/deck, verify permit and wind/snow requirements locally, and confirm current model specifications with the manufacturer. PergolaSpec has not physically tested every product listed.
Choose the system type before the brand
| System | Best for | Main tradeoff |
|---|---|---|
| Fixed open-slat | Shade definition and climbing plants | Not rain protection |
| Manual louvered aluminum | Adjustable sun/rain control without electrical work | More moving parts than fixed roof |
| Motorized louvered | Frequent adjustment and premium outdoor rooms | Electrical, controls and service risk |
| Solid/insulated roof | Maximum weather cover where allowed | Different drainage, daylight and permit implications |
Minimum evidence to collect
Record the exact model, outside post dimensions, roof dimensions, published wind/snow assumptions, required footing or slab details, drainage outlet, included hardware, finish warranty and exclusions. “Heavy duty” without a model-specific engineering document is marketing, not a design load.
Shortlist by job
- Existing reinforced slab: confirm anchor schedule and edge distances.
- Deck: require a load path to structure; surface boards alone are not a footing.
- House attachment: resolve ledger/flashing and wall load path before ordering.
- High exposure: ask for local engineer/permit review and exact design criteria.
Our verdict
The best kit is the one with documented geometry and installation requirements that match your site. Use our size planner, then compare aluminum systems and louvered roofs.