Our wooden perforated acoustic panel is made up of a series of perforations. Each panel has a machined groove joint for either a seamless or gap joinery. TIMBERIX wooden grooved panels come in 8 standard patterns: E4/4/1, E8/8/1, E16/16/3, E16/16/6, E32/32/6, V16/16/6, V32/32/6, and V32/32/8. The first alphabet refers to the hole arrangement (E is linear and V is staggered), the second pair of numbers refer to the distance between the two holes, and the last number refers to the hole diameter. The surface comes in 4 types of finishing: paint, melamine, PP, and veneer. The base material can be made of MDF, fire-resistant MDF, eco-friendly MDF, black MDF, 3-layer composite, 5-layer composite or OSB.