The easiest farmhouse dining benches you can make. Only two tools, no Kreg Jig required. Free plans from Ana-White.com
1 - 2x6 @ 12 feet long (cut exactly in half)
3 - 2x4 @ 8 feet or stud length (will have a little extra if making two benches may be able to buy 5 instead of 6)
2-3/4" long self tapping wood screws
2 - 2x4 @ 66" - long aprons
4 - 2x4 @ 16-1/2" - legs
4 - 2x4 @ 7-1/2" - end aprons and stretcher
1 - 2x4 @ 4-1/2" - middle
Screw the leg sets together using the 2-3/4" screws. You can use a 1x piece of wood or 3/4" thick plywood to elevate the aprons/stretchers up 3/4" on the leg when attaching.
Attach long aprons at top to legs.
Find center of bench and add the middle support. This keeps aprons from spreading and gives you something to attach seat boards to.
Screw seat boards to bench. About 1" overhang on ends and 1/4" overhang on side edges.