Subependymal grey matter heterotopia, also known as periventricular heterotopia, is the most common form of grey matter heterotopia and is characterised by nodules of grey matter located immediately beneath the ependyma of the lateral ventricles. It can be divided according to morphology into 2 :
The cost of crown molding depends largely on the material, finish, and detail of the design you choose. Basic styles may cost as little as $2-$3 per linear foot, while custom designed and cut moldings prepared by a finish carpenter cost $8-$10 or more per linear foot.
Itâs the number of corners and cuts that add up. Some carpenters charge per corner or âjointâ ($20 to 25 ea.) If you expect your carpenter to be a furniture mover as well, be prepared to pay for it. Crown molding and stairs are areas that are a little tricky. These installations command higher rates due to the more complex nature of the install.