The following list of accessories can be added to a 8 or 10 foot basic set:

Solid Wood Roof
Monkey Bars
EZ Glider
Climbing Rock Wall
Slide Upgrade
Balcony
Tire Swing (Pine $325) (Cedar $425.00)
Climbing Ladder
Horizontal Bar $75
FirePole $45
Extended Sandbox $65
Child Swing $35
Steering Wheel $35
16 Foot 4 Station Beam $25
6ft. x 7ft. Fort (42 sq ft) (pine $200)(cedar $325)
Floor Deck (where sandbox would be) (pine$100) (cedar $150)
Air Pogo $200
Rope Disc Swing $60

Balcony w/Rail and larger sandbox (Pine $250) (Cedar $325.00)

The following can only be installed on a 10 Foot Set:

Fort Under Raised Fort
Picnic Table Under Fort (Pine $145) (Cedar $180.00)
Giant Enclosed Turbo Slide $700