How to MEASURE for  

True Radius Applications


Half circles:

Diameter" x 2 = MATERIAL LENGTH


Quarter circles:

Radius" x 2 = MATERIAL LENGTH

TRUE RADIUS CASING FLEXIBILITY RANGE
1. Diameters 1'/6" - 3'/0" will expand 4" and contract 2" if the profile is not larger than 3/4" X 3-1/2" (larger size profiles will restrict flexibility for diameters within this range).
2. Diameters 4'/0"and larger will expand 10" and contract 6" if the molding profile is not larger than 3/4" X 3-1/2" (larger profiles will restrict flexibility for diameters within this range).

PRE-FORMING LIMITATIONS
1. Minimum D 4'/0" (24" radius) if the profile is 6" to 8" wide
2. Minimum D 3'/0" (18" radius) if the profile is 5" to 6" wide
3. Minimum D 2'/4" (14" radius) if the profile is 3’/2" to 5" wide
4. Minimum D 1'/6" (9" radius) if the profile is 2" to 3’/2" wide

SPECIAL INSTRUCTIONS
1. Provide a molding placement drawing if application is not typical.
2. To order true radius casing with straight legs, refer to how to order "Odd Casing" Specials.

 

     


Full circles:

Diameter" x 4 = MATERIAL LENGTH


Arc Eyebrows:

Rise" x 3 + width = MATERIAL LENGTH 

     


Round OSR Radius Crowns:

Application (quarter circle, half circle, three-quarter circle, full circle) add two feet 
= MATERIAL LENGTH


Dormer and ISR Radius Crowns:
Diameter" convert to radius application (quarter circle, half circle, full circle) 
= MATERIAL LENGTH
 
IMPORTANT!!! specify dormer if it's a dormer application 

 

Standard True Radius

 
   

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