The gtResi-Grille offers a cast iron grille which has a recess of 50mm that allows the grille to be filled with gtResibond to make a porous surface. When filled the gtResi-Grille protects tree’s roots allowing them to receive natural water. This prevents the soil in the tree pit being compacted, protecting the root system from vehicle and pedestrian damage.


Once installed it provides a durable, hardwearing, yet porus finish to hard landscaped areas. gtResi-Grille with gtResibond can be used in areas where conventional means of mulching with loose materials may not be practical due to the constant displacement of the material, increasing maintenance time and costs.



Standard Finish

Grille Size

Guard Size

Mild Steel Hot Dip

Galvanised to

BS EN ISO 1461:1999

1m x 1m

1.2m x 1.2m

1.5m x 1.5m

1.8m x 1.8m

2.2m x 2.2m

1.8m x 400mm – internal aperture

Downloads & Datasheets