Rafters
are the large 2" x 6" framing members. This photo shows
how the rafters block the sunlight.
The
rafters are notched on their bottoms to fit over the entablatures.
The rafters are also notched on their tops to locate the
purlins.
"It was such a beautiful day on Sunday I had my coffee under the pergola and Sunday night we ate dinner under it. We never spent any time out on the patio in the past.
" - Tim, Cathy, and Elizabeth.