Quarter-Round Roller Box

By Huu Khanh Nguyen · Updated October 28, 2026 · roller-box, quarter-round, garage-door

A roller door lintel box of formed metal with a square top and a rounded lower room-side corner, closed by an end cap on each side.

Parameters

Name	Default	Unit
Length	2650	mm
Depth	165	mm
Height	165	mm
Wall thickness	0.83	mm
End cap thickness	4.4	mm