Modern Two-Tone Birdhouse from One Fence Picket

Overview
One $4 cedar fence picket yields every part of this birdhouse, including the angled roof.
Hole size decides your tenants: 1⅛" for chickadees and wrens, 1½" for bluebirds. We include the chart, plus the roof-seam fix from our first leaky version.
Full guide coming together
This seeded post shows the card, ledger and article shell. Open it in the admin panel and add Materials & Prices, Step-by-Step, Issues & Solutions, and Final Cost Summary blocks — the cedar privacy screen post is a complete example of every block type.