Measuring Instructions for Sectional Garage Doors
The long-lasting and trouble-free operation of the garage door depends not only on its quality but also on accurate measurement and proper installation. To ensure the door fits the opening perfectly, precise measurements are crucial.
It is imperative to follow the below instructions closely.

L - Left, R - Right, FH - Final floor height
- W - WIDTH (dimension A) This is the width of the opening after it has been finished.
- H - HEIGHT (dimension B) This is the height of the opening after it has been finished.
- LS - left jamb (side space) minimum 110 mm
- RS - right jamb (side space) minimum 110 mm
- HR - lintel
- D - depth of the garage
- • The ordered width of the door = the width of the garage entrance after it has been finished (W)
- • The ordered height of the door = the height of the garage entrance after it has been finished (H)
- • Measurements must be made for finished walls and floors.
- • Check for any obstacles within the planned door area that could prevent installation or its uninterrupted operation (e.g., ceiling beams, pipes, windows, doors opening into the garage).
- • When configuring the garage door, the manufacturer selects the type of guides and the balancing system:
- - the choice of balancing system depends on the dimensions and weight of the door
- - the choice of guides and the placement of the balancing system depends on the height of the lintel
ATTENTION: if the height of the HR lintel exceeds 300 mm, it may be necessary to purchase longer components to suspend the gate from the ceiling.
*All dimensions are given in millimetres.