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