Protection for trees

1:100 Scale dwg file (meters)
Conversion from meters to feet: a fast and fairly accurate system consists in scaling the drawing by multiplying the value of the unit of 
measurement in meters by 3.281

Plan section and elevation of cast iron grid to protect flowerbed, trees and plants
It allows you to take advantage of the flower beds for pedestrians and light transit. Preserving the root of trees from damage.