Different Types & Specifications of Perforated Grille
General
1. All grille types can be used for walls, cabinet tops, ceilings, or floors (reinforcement may be needed for floor application)
2. All types can be used for either supply or return
3. All types can be made to order in any feasible size. Wainlands does not offer any stocks grilles
4. No grilles are made with dampers (operable louvers). It is possible to add this feature onto certain grilles
5. The amount of open area required depends on the HVAC system, and forced air generally requires more than radiant systems
Perforated
1. Made from sheet material in a single flat metal piece
2. Available thicknesses are 1/16" and 1/8" but can vary if required
3. Design shapes are punched, or laser cut out to make a pattern
4. Pattern shape proportions are constant, and border sizes vary depending upon the size of the grille
5. Border sizes range from 1/2" on small grilles to 1" on large grilles. These borders decorate and hide the edges of the opening
6. Typically, grilles are mounted with screws
NO. 201 – Honeycomb
NO. 202 - Oval Slots
NO. 209 - Straight Slots
NO. 210 - Crossed Circle
NO. 212 - Round Cross
NO. 213 - Formal Hole
NO. 214 - Criss Cross
NO. 215 - Offset Slots
NO. 216 - Center Ray
NO. 217 - Star
NO. 219 – Diamond
NO. 220 - Checkerboard
NO. 221 - Square L
NO. 222 - Cross Weave
NO. 224 – Square
NO. 225 - Offset Hole
NO. 226 - Square 45°
NO. 227 - Shell
NO. 229 - Half Shell
NO. 250 - Square and Cross
NO. 251 – Victorian
NO. 252 - French Motif
NO. 253 – Snowflake
NO. 254 - Blossom
NO. 255 - Italian Motif
