Pergola Construction

A pergola adds structure and partial shade over a patio, deck, or outdoor seating area without fully enclosing the space the way a solid roof would. We build both freestanding pergolas (a standalone structure over a patio or fire-pit area) and attached pergolas (built off the side of a house or existing deck), using the same post-setting and framing standards that go into our fence and deck work.

Freestanding vs. attached

A freestanding pergola stands entirely on its own posts and footings, giving full flexibility on placement anywhere in a yard, independent of the house's structure. An attached pergola ties into the house or an existing deck, which can simplify the framing on one side but requires a proper structural connection to whatever it's attaching to — not something to improvise, since an improperly attached ledger board is one of the more common structural failure points on this kind of project.

Sizing and post layout

Post spacing and beam sizing both depend on the pergola's span and the local wind and snow-load considerations (wind matters far more than snow load in this area, but it still needs to be accounted for) — a pergola built to look right from the ground can still be structurally undersized if beam spans are pushed further than the lumber size actually supports. We size posts and beams to the real span rather than defaulting to whatever looks proportionally right.

Materials and finish

Cedar and pressure-treated pine are both common, following the same trade-offs as our deck and fence work — cedar for a natural or lightly stained look, pressure-treated pine as a more economical choice under paint or solid stain. A pergola typically gets less direct ground-moisture exposure than a fence's bottom rail, but the same sun and humidity exposure applies to the upper structure, so a similar staining schedule (every 2 to 4 years) keeps it looking finished.

Adding shade beyond the basic structure

A bare pergola gives partial, dappled shade from the beams alone; additional shade cloth, retractable canopy panels, or climbing plants trained across the top are all common additions for a property wanting more complete sun coverage without building a solid roof. These are worth planning for at the design stage, since beam spacing and structural capacity can be adjusted upfront to support a canopy addition more easily than retrofitting one later.

Pairing with a fence or deck

A pergola often gets built as part of a larger outdoor living project alongside a new deck or privacy fence, and matching wood species and finish across all three creates a more cohesive result than treating each as an independent project with its own material choices. Planning them together also means post locations and framing can be coordinated rather than working around structures that were built without the others in mind.

Maintenance

A pergola follows the same maintenance rhythm as any exterior wood structure — periodic staining every 2 to 4 years depending on sun exposure, and a check for any loose connections at the posts or beams after storm season, since a pergola's open beam structure catches real wind load despite not looking as solid as a fence or wall.

Beam style and spacing

The spacing and thickness of the top cross-beams affects both the amount of shade a pergola provides and its overall visual weight — closer spacing gives more shade and a more substantial look, wider spacing gives a lighter, more open feel with less shade. This is a design choice worth discussing upfront rather than defaulting to one standard spacing regardless of how the space underneath will actually be used.

Placement and sun angle

Where a pergola sits relative to the house and the sun's path through the day matters as much as its size — a pergola placed without considering afternoon sun angles can end up providing far less usable shade than expected, even if it's a generous size on paper. We factor in the specific property's orientation when planning placement rather than defaulting to wherever looks most convenient.

Frequently asked questions

Should a pergola be freestanding or attached to the house?

It depends on the layout and goal — freestanding gives full placement flexibility, attached can simplify framing but needs a proper structural connection to the house or deck it ties into.

Does a pergola provide real shade?

The basic beam structure gives partial, dappled shade. For more complete coverage, shade cloth, a retractable canopy, or climbing plants are common additions worth planning for upfront.

Can a pergola be added to an existing deck?

Yes, as long as the deck's structure can support the additional load and a proper ledger connection, or the pergola is built with its own independent posts alongside the deck rather than relying on the deck frame itself.