Restoring a Round Porch

The author and his crew set up temporary supports for the porch roof so that they could remove and repair the sculpted columns.

The view from the restored porch.

The restored 1930s porch: Like a lot of coastal porches, this one had had rot problems, and the deck framing was sagging. The porch had been repaired many times, but the underlying problems that caused the rot had never been corrected.

The 2x10 fir laminations glued up to replace rotted post sections were offset to create a slot for joining to the sound sections of the original posts.

The original column patterns were scribed onto the laminations and cut out with a band saw.

The author mortises at one end of the sound orginal column sections to mate with the groove end of the laminated sections.

The new and old column sections were joined together with galvanized through-bolts and epoxy.

Once the columns were reassembled, a worker straightened them with a large-capacity beam saw.

The author replaced the rotted joists with treated framing, then used a trammel arm to scribe the deck’s radius onto blocking installed on the flat around the perimeter of the deck.

Here, the deck floor frame joists and blocking have been trimmed in a smooth radius.

To cut the new decking to length after installation, the author made a plywood extension fitted with a curved fence for his Porter-Cable 4-1/2-inch trim saw.

One person manned the saw while another crew member removed the decking offcuts.

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