The tree grate is made of solid cast-iron. Both the tree grate and the innerside of the tree grate are square of shape. The tree grate consists out of 4 segments. The grate is standard black waxed. This layer is going to oxidate within some months, therefore the colour is getting darker. 
Deviating sizes
TypeOuter sizeInside dimension
Reka 15015060
Material
cast iron (black waxed)