Q. How can I calculate the grid I need?

A. Add all sides and then divide by 8 and this is how many wall perimeter moldings you will need, next multiply the length by the width to get the square footage of the area needed for a drop ceiling. Now divide square foot by 16 and this number of main's you need, then divide the square foot of the area by 8 (for a 2'x4') and by 4 (for a 2' x 2' grid) for the Cross T's you will need.

1. What is the minimum drop for RP Grid?
The minimum drop for RP Grid is 4 inches. This is to allow you enough room to slide and drop the tile in place. If a smaller ceiling height drop is required, reference.

2. What kinds of tiles can I use with RP Grid?
With the RP Grid system, any 15/16-inch 2x2 or 2x4 flat or revealed tile can be used. (Revealed panels are those with the 1/4-inch lip around the edge of the panel). ACP's Classic Tin Style Tiles can also be used with the RP Grid system.

3. What kind of application is RP Grid recommended for?
RP Grid is recommended for basements, bathrooms, dining rooms and kitchens. SinceRP Grid is made of PVC (vinyl) plastic, the grid will not rust in high humidity areas.

4. What kind of lights can be used with RP Grid?
Any type of recessed lighting can be used with RP Grid. However, any type of lighting you choose to use, must be mounted to or suspended from the floor joists and NOT the ceiling grid. Since RP Grid is made of PVC plastic, the grid cannot withstand the weight of the lighting without bending the grid components. 

5. What is a dry line?
A dry line is a string line run from one end of the room to the other. It is an alternative to snapping chalk lines. In such cases where you need to snap a chalk line to align your cross tees, you may need to run a dry line if the cross tees fall between the floor joists instead of on a floor joist.

6. In which direction do my mains need to be installed?
The Mains can be installed in either direction. If 2x4 trouffer lights are being used, the mains should be installed parallel to the 4’ side of the light.

7. What tools do I need to install RP Grid?
To completely install Grid, you will need the following tools:
String or Chalk Line
Drill with Phillips Tip
Tape Measure
Tin Snips
Utility Knife
1” Dry Wall Screws
Hanger Wire & Lag Eyes

8. Do I need to align my room to have equal border tiles?
The Room Planning section of the installation guide goes through step-by-step instructions on how to lay out your room with equal border tiles, giving you a more professional look. However, you do not necessarily need to have equal border tiles. You can start a room with a full panel and cut tiles only on one side. 

9. How do I install the wall brackets on inside corners?
To install the wall bracket on an inside corner, you can either abut the two wall brackets together, or you can miter them at 45 degrees.

10. Can I order more connector clips if needed?
Each RP Grid main comes with one connector clip. The connector clips attaches the end of one main to the beginning of another. The connector clips that are included with the mains should be sufficient to finish your room. However, if more connector clips are needed they can be purchased through the store the product was originally purchased from.

11. How do I cut border panels if I’m using a revealed tile?
On the revealed panels you will notice a ¼” lip around the edge of the tile. If you need to cut a border panel, you first need to cut the panel down to the border size you have calculated. To do this measure from the wall to the front edge of the cross tee. Then, lay the tile on the grid. Score the face of the tile along the edge of the wall bracket and pull the tile out of the grid. Run a utility knife along a strait edge cutting into the tile. Then cut into the side of the panel dropping out the corner of the tile.

12. How does the cross tee attach to the wall bracket?
The Tee is not attached to the wall bracket in any way. It simply rests on the leg of the wall bracket.