Room2Zoom 4x4 10.6 ft high swing

Note: Most brackets are 45° and should be cemented into the ground.
60° brackets are more expensive but the leggs don't have to be cemented in.

How to Easily Build the TALL Wood Swing Set
YouTube
Heavy duty brackets 60° $115 for 1 (need 2) 90° end 60° sprad.
Cost:

$140	Lumber Doug Fir or redwood best. Pine is weaker
$300	Free Standing Swing Beam Bracket | SwingSetMall $150 each (need 2). 60°
$46	Hardware bolts, nuts, washers
$10	Paint
$30	3/8" kern-mantle orRope for extending seat and trapeze to 12 ft.
$128	8 Rope loop clamps (E-Z-TY) for extension for seat and trapeze
$50	4 swing hangers
$80	PELLOR Deluxe swing seat
$30	PELLOR Trapeze Swing Bar width Rings
$33	Plastic trapeze rings
$40	Paint
free	old ladder from Dad's firetruck
$887	Total

Also:
Ground Cover for a soft surface below: 115 sq ft. 13 flats of dymondia @ $36/flat(Silver carpet) $550
I also paid $40 for 2 people to help erect the swing. They recommend 4; We did it with 3.

Swing/slide play house sets range from $1,000 - $5,000

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Other Uses:

Provides a framework for:
Jungle Gym, monkey bar
Climbing rope
swing disk
slide
Bungee jumper
Climbing wall
Bird feeders
Flag
golf, soccer, hitting practice with net on one side
Frame for one side of a deck shade, grape arbor 
 (if swing is installed on 1 side of the deck)
 Wind Turbine