Tool 1: Convert One Spring Size to Another
This tool allows you to enter your current spring in order to find a suitable replacement of equal strength in a larger wire size. The output is always a 2" Inside Diameter (ID) spring.
Spring Conversion Tool
Selected Spring
Suitable Conversions
All suitable conversions shown are for springs
with a 2-inch inside diameter. Conversion lengths
are rounded to the nearest half-inch.
Tool 2: Convert a One-Spring System into a Two-Spring System
This tool allows you to take your single spring system and convert it into two springs (RW and LW) of equal strength. Two spring systems are ideal for double car garage doors. They last longer and are typically safer.
Single-to-Double Spring Conversion Tool
Selected Single Spring
Suitable Two-Spring Conversions
Each result is a matched pair of 2-inch ID springs:
one left-wound and one right-wound. Conversion
lengths are rounded to the nearest half-inch.