Greenheck LAD Architectural Linear Slot Diffuser

Model: LAD

Description: Extruded Aluminum

Product Features

Available for straight and curved applications.
Model LAD is available in slot widths from 1" to 3" wide.
Available with 1 or 2 slots.
Longest single section is 96".
Various frame types are available for different applications:
- AA Frame - Exposed Flange
- CC Frame - Concealed Tape and Spackle
- FF Frame - Flush Channel Frame
- FH Frame - Offset Flush Frame
- GG Frame - Beveled Frame
Can come with hanger brackets for concealed mounting.
Available with standard for combo blade pattern controllers for horizontal or vertical applications.
Combination frames are available when two different frames are required on a single linear.

Finishes

20 - White/Black
03 - Black
02 - Satin Silver
24 - Mill
28 - Custom Color

Note: White Finish is suitable for a primer coat if field painting is required.

Optional Accessories

Standard Blades
Combo Blades

CFD Throw Pattern Visualization

Horizontal Throw: Visualizations show airflow patterns for both high and low velocity, with side views indicating distribution.

Vertical Throw: Visualizations show airflow patterns for both high and low velocity, with side views indicating distribution.

Model Specifications and Dimensions

Model: LAD-AA - Architectural Linear Slot Diffuser, Both Flanged Exposed

Diagrams illustrate the LAD-AA model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), and A (face width). The 1-slot configuration shows a single slot with a border labeled 'A Border'. The 2-slot configuration shows two slots with a border labeled 'A Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-AA CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: AA Frame - Exposed Flange

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
End Border (EB): 1 EB: X = 3/4; 2 EB: X = 1 1/2
Mitered Border (MO/MM): MO: X = 3/4; MM: X = 1 1/2
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-AA CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)	1 Slot	2 Slot
LAD-AA-10	1		4 1/4	7 3/16	3 1/4	6 3/16	1 5/8	1 15/16			2	4	7
LAD-AA-15	1 1/2		4 3/4	8 3/16	3 3/4	7 3/16	1 5/8	1 15/16			2	4 1/2	8
LAD-AA-20	2		5 1/4	9 3/16	4 1/4	8 3/16	1 5/8	1 15/16			2	5	9
LAD-AA-25	2 1/2		6 3/4	12 3/16	5 3/4	11 3/16	2 1/8	2 15/16			2 1/2	6 1/2	12
LAD-AA-30	3		7 1/4	13 3/16	6 1/4	12 3/16	2 1/8	2 15/16			2 1/2	7	13

Model: LAD-AC - Architectural Linear Slot Diffuser, Exposed Flange / Tape-Spackle Flange

Diagrams illustrate the LAD-AC model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), and A (face width). The 1-slot configuration shows a single slot with borders labeled 'C Border' and 'A Border'. The 2-slot configuration shows two slots with borders labeled 'C Border' and 'A Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-AC CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: AA Frame - Exposed Flange, CC Frame - Concealed Tape and Spackle

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
End Border (EB): 1 EB: X = 3/4; 2 EB: X = 1 1/2
Mitered Border (MO/MM): MO: X = 3/4; MM: X = 1 1/2
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-AC CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)	1 Slot	2 Slot
LAD-AC-10	1		4 1/4	7 3/16	3 1/4	6 3/16	1 5/8	1 15/16			2	4	7
LAD-AC-15	1 1/2		4 3/4	8 3/16	3 3/4	7 3/16	1 5/8	1 15/16			2	4 1/2	8
LAD-AC-20	2		5 1/4	9 3/16	4 1/4	8 3/16	1 5/8	1 15/16			2	5	9
LAD-AC-25	2 1/2		6 3/4	12 3/16	5 3/4	11 3/16	2 1/8	2 15/16			2 1/2	6 1/2	12
LAD-AC-30	3		7 1/4	13 3/16	6 1/4	12 3/16	2 1/8	2 15/16			2 1/2	7	13

Model: LAD-CC - Architectural Linear Slot Diffuser, Both Tape-Spackle Flanges

Diagrams illustrate the LAD-CC model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), and A (face width). The 1-slot configuration shows a single slot with borders labeled 'C Border' and 'A Border'. The 2-slot configuration shows two slots with borders labeled 'C Border' and 'A Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-CC CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: CC Frame - Concealed Tape and Spackle

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
End Border (EB): 1 EB: X = 3/4; 2 EB: X = 1 1/2
Mitered Border (MO/MM): MO: X = 3/4; MM: X = 1 1/2
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-CC CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)	1 Slot	2 Slot
LAD-CC-10	1		4 1/4	7 3/16	3 1/4	6 3/16	1 5/8	1 15/16			2	4	7
LAD-CC-15	1 1/2		4 3/4	8 3/16	3 3/4	7 3/16	1 5/8	1 15/16			2	4 1/2	8
LAD-CC-20	2		5 1/4	9 3/16	4 1/4	8 3/16	1 5/8	1 15/16			2	5	9
LAD-CC-25	2 1/2		6 3/4	12 3/16	5 3/4	11 3/16	2 1/8	2 15/16			2 1/2	6 1/2	12
LAD-CC-30	3		7 1/4	13 3/16	6 1/4	12 3/16	2 1/8	2 15/16			2 1/2	7	13

Model: LAD-FF - Architectural Linear Slot Diffuser, Both Flush Frame

Diagrams illustrate the LAD-FF model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), and A (face width). The 1-slot configuration shows a single slot with a border labeled 'F Border'. The 2-slot configuration shows two slots with a border labeled 'F Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-FF CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: FF Frame - Flush Channel Frame

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-FF CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)	1 Slot	2 Slot
LAD-FF-10	1		3 1/4	6 3/16	3 1/4	6 3/16	1 1/8	1 15/16			1 15/16	4	7
LAD-FF-15	1 1/2		3 3/4	7 3/16	3 3/4	7 3/16	1 1/8	1 15/16			1 15/16	4 1/2	8
LAD-FF-20	2		4 1/4	8 3/16	4 1/4	8 3/16	1 1/8	1 15/16			1 15/16	5	9
LAD-FF-25	2 1/2		5 3/4	11 3/16	5 3/4	11 3/16	1 5/8	2 15/16			2 9/16	6 1/2	12
LAD-FF-30	3		6 1/4	12 3/16	6 1/4	12 3/16	1 5/8	2 15/16			2 9/16	7	13

Model: LAD-FA - Architectural Linear Slot Diffuser, Flush Frame / Exposed Flange

Diagrams illustrate the LAD-FA model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), A (face width), C (border width), F Border, and A Border. The 1-slot configuration shows a single slot with borders labeled 'F Border' and 'A Border'. The 2-slot configuration shows two slots with borders labeled 'C' and 'A Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-FA CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: FF Frame - Flush Channel Frame, AA Frame - Exposed Flange

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-FA CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		C (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	F Face	A Face	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)
LAD-FA-10	1		3 3/4	6 3/16	3 1/4	5 11/16	1 1/8	1 5/8			1 15/16	1 15/16	4	7
LAD-FA-15	1 1/2		4 1/4	7 3/16	3 3/4	6 11/16	1 1/8	1 5/8			1 15/16	1 15/16	4 1/2	8
LAD-FA-20	2		4 3/4	8 3/16	4 1/4	7 11/16	1 1/8	1 5/8			1 15/16	1 15/16	5	9
LAD-FA-25	2 1/2		6 1/4	11 3/16	5 3/4	11 11/16	1 5/8	2 1/8			2 15/16	2 9/16	6 1/2	12
LAD-FA-30	3		6 3/4	12 3/16	6 1/4	12 11/16	1 5/8	2 1/8			2 15/16	2 9/16	7	13

Model: LAD-FC - Architectural Linear Slot Diffuser, Flush Frame / Tape-Spackle Flange

Diagrams illustrate the LAD-FC model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H (height), B (border width), S (slot width), A (face width), C (border width), F Border, and C Border. The 1-slot configuration shows a single slot with borders labeled 'F Border' and 'C Border'. The 2-slot configuration shows two slots with borders labeled 'C' and 'C Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-FC CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: FF Frame - Flush Channel Frame, CC Frame - Concealed Tape and Spackle

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-FC CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		C (Border Width)		CB (Border Width)		H (Height)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	F Face	C Face	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H (Height)
LAD-FC-10	1		3 3/4	6 3/16	3 1/4	6 3/16	1 1/8	1 5/8			1 15/16	1 15/16	4	7
LAD-FC-15	1 1/2		4 1/4	7 3/16	3 3/4	7 3/16	1 1/8	1 5/8			1 15/16	1 15/16	4 1/2	8
LAD-FC-20	2		4 3/4	8 3/16	4 1/4	8 3/16	1 1/8	1 5/8			1 15/16	1 15/16	5	9
LAD-FC-25	2 1/2		6 1/4	11 3/16	5 3/4	11 3/16	1 5/8	2 1/8			2 15/16	2 9/16	6 1/2	12
LAD-FC-30	3		6 3/4	12 3/16	6 1/4	12 3/16	1 5/8	2 1/8			2 15/16	2 9/16	7	13

Model: LAD-FH - Architectural Linear Slot Diffuser, Offset Flush Frame

Diagrams illustrate the LAD-FH model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H1 (height), H2 (height), B (border width), S (slot width), and A (face width). The 1-slot configuration shows a single slot with a border labeled 'B'. The 2-slot configuration shows two slots with a border labeled 'B' and a center divider labeled 'CB'. Airflow direction is indicated. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-FH CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: FH Frame - Offset Flush Frame

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-FH CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		H1 (Height 1)	H2 (Height 2)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	1 Slot	2 Slot	H1 (Height 1)	H2 (Height 2)	1 Slot	2 Slot
LAD-FH-10	1		3 1/4	3 1/4	1 1/8	1 1/8	1 15/16	2 9/16	2	4	7
LAD-FH-15	1 1/2		3 3/4	3 3/4	1 1/8	1 1/8	1 15/16	2 9/16	2	4 1/2	8
LAD-FH-20	2		4 1/4	4 1/4	1 1/8	1 1/8	1 15/16	2 9/16	2	5	9
LAD-FH-25	2 1/2		5 3/4	5 3/4	1 5/8	1 5/8	1 15/16	2 9/16	2 1/2	6 1/2	12
LAD-FH-30	3		6 1/4	6 1/4	1 5/8	1 5/8	1 15/16	2 9/16	2 1/2	7	13

Model: LAD-GG - Architectural Linear Slot Diffuser, Both Flanged Exposed

Diagrams illustrate the LAD-GG model with 1-slot and 2-slot configurations. Key dimensions are labeled: W1 (overall width), H-1 (height), H-2 (height), B (border width), S (slot width), W (width), and A (face width). The 1-slot configuration shows a single slot with a border labeled 'G Border'. The 2-slot configuration shows two slots with a border labeled 'G Border' and a center divider labeled 'CB'. Options for Standard Blades and Combo Blades are depicted. A separate diagram shows the Concealed Mount (LAD-GG CM) with dimensions W2. Formulas are provided for calculating Ceiling Opening (Length + 1/2), Neck Size (Length - 1/4), and Overall Size (Length + X).

Frame Types: GG Frame - Beveled Frame

Dimensions & Formulas:

Open End (O): X = 0
End Cap (EC): 1 EC: X = 0; 2 EC: X = 0
CEILING OPENING = LENGTH + 1/2
NECK SIZE = LENGTH - 1/4
OVERALL SIZE = LENGTH + X

LAD-GG CM - Concealed Mount Dimensions

Model	S (Slot Width)		A (Face Width)		W1 (Neck Width)		B (Border Width)		H-1 (Height 1)	H-2 (Height 2)	W2 (Concealed Mount)
Model	1 Slot	2 Slot	1 Slot	2 Slot	W	W	1 Slot	2 Slot	H-1 (Height 1)	H-2 (Height 2)	1 Slot	2 Slot
LAD-GG-10	1		3 1/4	1 1/4	1 1/8	1 1/8	1 5/8	2 5/16	4	7
LAD-GG-15	1 1/2		3 3/4	1 3/4	1 1/8	1 1/8	1 5/8	2 5/16	4 1/2	8
LAD-GG-20	2		4 1/4	2 1/4	1 1/8	1 1/8	1 5/8	2 5/16	5	9
LAD-GG-25	2 1/2		5 3/4	2 3/4	1 5/8	1 5/8	2 1/2	2 15/16	6 1/2	12
LAD-GG-30	3		6 1/4	3 1/4	1 5/8	1 5/8	2 1/2	2 15/16	7	13

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Product Features

Finishes

Optional Accessories

CFD Throw Pattern Visualization

Model Specifications and Dimensions

Model: LAD-AA - Architectural Linear Slot Diffuser, Both Flanged Exposed

LAD-AA CM - Concealed Mount Dimensions

Model: LAD-AC - Architectural Linear Slot Diffuser, Exposed Flange / Tape-Spackle Flange

LAD-AC CM - Concealed Mount Dimensions

Model: LAD-CC - Architectural Linear Slot Diffuser, Both Tape-Spackle Flanges

LAD-CC CM - Concealed Mount Dimensions

Model: LAD-FF - Architectural Linear Slot Diffuser, Both Flush Frame

LAD-FF CM - Concealed Mount Dimensions

Model: LAD-FA - Architectural Linear Slot Diffuser, Flush Frame / Exposed Flange

LAD-FA CM - Concealed Mount Dimensions

Model: LAD-FC - Architectural Linear Slot Diffuser, Flush Frame / Tape-Spackle Flange

LAD-FC CM - Concealed Mount Dimensions

Model: LAD-FH - Architectural Linear Slot Diffuser, Offset Flush Frame

LAD-FH CM - Concealed Mount Dimensions

Model: LAD-GG - Architectural Linear Slot Diffuser, Both Flanged Exposed

LAD-GG CM - Concealed Mount Dimensions

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