5 ft Double Swing A-Frame with 4 Holes5 ft Double Swing A Frame with 4 Holes Need the perfect spot to hang your lovely porch swing? Try our large Double Swing A Frame with 4 Holes. It is designed to accommodate two single chairs' porch swing. Made of Northern White Cedar, which is naturally resistant to decay and insects. Engineered to last and built skillfully so it can withstand constant outdoor exposure. Many or most of the logs will have cracks. These cracks are called checks.