The proposal solution for four trees in the back garden that would make a really nice support for a tree house for the children (2 months to 9 years old) that will be built DIY.
✓ the structure to be very sturdy and safe
✓support beams
✓ rails
✓ use wood for the construction
✓ for boys and girls
✓ will be a part of a playground and not as a place for kids to live in.