DeLapp & Associates, Inc. - CAD Layering Standards

CAD Standards
Layers and Pen/Line Weights

Page Index:
Layer Standard
Color-Pen Weight Standard
Pen Table

DeLapp & Associates layer standard follows AIA short format.

Layer Standard
LayerName	Color	Linetype	Description	Location
aarid	white	continuous	Arch area room ID - names & numbers
aclgr	254	continuous	ceiling grid	Ceiling
ecc	red	continuous	CCTV
eco	red	continuous	Communications
ecr	8	continuous	Circuiting tics
ecs	cyan	continuous	Conduit Systems
ecsug	cyan	dashed2	Conduit Systems	Underground
ect	red	continuous	Control Systems
eda	red	continuous	Data systems
eeq	30	continuous	Equipment & Panels
efi	red	continuous	Fire Alarm
eficl	red	continuous	Fire Alarm	Ceiling
efiwa	red	continuous	Fire Alarm	Wall
eli	150	continuous	Lighting
elicl	150	continuous	Lighting	Ceiling
elipa	8	continuous	EM lighting fixt hatch pattern
elisw	red	continuous	Light Switches	Wall
eliwa	150	continuous	Lighting	Wall
eno	white	continuous	Notes
epo	30	continuous	Power
eporo	30	sdash2	Power	Roof
eso	blue	continuous	Sound or PA
esocl	blue	continuous	Sound or PA	Ceiling
esofl	blue	continuous	Sound or PA	Floor
esowa	blue	continuous	Sound or PA	Wall
esr	blue	continuous	Security
etv	blue	continuous	Television
mhveq	9	continuous	Mech HVAC equipment
mhveqro	9	sdash2	Mech HVAC equipment	Roof
ede1	yellow	continuous	detail-very light
ede1-dash	yellow	hidden2	detail-very light-dashed
ede2	9	continuous	detail-med light
ede2-dash	9	hidden2	detail-med light-dashed
ede3	white	continuous	detail-light
ede3-dash	white	hidden2	detail-light-dashed
ede4	red	continuous	detail-medium
ede4-dash	red	hidden2	detail-medium-dashed
ede5	150	continuous	detail-heavy
ede5-dash	150	hidden2	detail-heavy-dashed

"Pens" really do not exist for raster plotters. But like many companies, we use the pen concept to standardize the line weights.

Color - Line Weight
Appearance (assuming white background)	Color #	Color	Pen	Assigned Line Weight	Screen	Full inches	Half Inches	Printer Inches	Comment
dark	1	Red	4	Medium	100%	0.020	0.010	0.006
light	2	Yellow	1	Very Light	100%	0.008	0.004	0.002
medium	3	Green	4	Medium	100%	0.020	0.010	0.006
medium	4	Cyan	5	Heavy	100%	0.028	0.014	0.008
dark	5	Blue	4	Medium	100%	0.020	0.010	0.006
medium	6	Magenta	3	Light	100%	0.013	0.006	0.004
dark	7	White (black)	3	Light	100%	0.013	0.006	0.004
light	8	8 (grey)	1	Very Light	100%	0.008	0.004	0.002
light	9	9 (lt grey)	6	Medium Light	40%	0.010	0.005	0.003	Color for Background
dark	30	30 (Orange)	4	Medium	100%	0.020	0.010	0.006
dark	40	40 (Dark Yellow)	4	Medium	100%	0.020	0.010	0.006
dark	150	150 (Med. Blue)	5	Heavy	100%	0.028	0.014	0.008
light	254	254(lt grey)	7	Very Light	40%	0.008	0.004	0.002	Ceiling grid
		*All other colors*	2	*Medium Light*	100%	0.010	0.005	0.003

This shows the standard "pens" that we use. This is based on standard technical pens with 0.25, 0.35, 0.50 and 0.70 mm line widths. Half size plots use line widths that are 1/2 the width of full size plots. Printer plots use line widths 30% of the line width for full size plots.

Pen Table
Pen#	Weight	Screen	Full Size (mm)	Full Size (inches)	Half Size (inches)	Print (.3x) (inches)	Ratio to lighter pen
1	Very Light	100%	0.20	0.008	0.004	0.002	n/a
2	Medium Light	100%	0.25	0.010	0.005	0.003	1.25
3	Light	100%	0.32	0.013	0.006	0.004	1.28
4	Medium	100%	0.50	0.020	0.010	0.006	1.5625
5	Heavy	100%	0.70	0.028	0.014	0.008	1.4
6	Medium Light	40%	0.25	0.010	0.005	0.003	n/a
7	Very Light	40%	0.20	0.008	0.004	0.002	n/a

DeLapp & Associates, Inc. dba
DeLapp Engineering ®
1190 Harrison Rd Suite 3a
Santa Fe NM 87507
(505) 983-5557, Email Addresses (505) 982-5724 Fax

Map to DeLapp Engineering Office

DeLapp Engineering is a registered trademark of DeLapp & Associates, Inc.

Layer Standard

Color - Line Weight

Pen Table