Whether you are installing a frameless channel system or a post and glass balustrade, the measuring process is very similar. This guide explains the simple steps used by installers to measure balustrades accurately.
1. Measure the Full Run
Start by measuring the total length of the area where the balustrade will be installed. This could be the edge of a balcony, terrace, decking area or staircase landing.
- Measure from one end of the run to the other
- Record the measurement in millimetres
- Check the measurement twice for accuracy
2. Identify Corners or Changes in Direction
If your balustrade changes direction, such as around a corner on a balcony or deck, you will need to measure each section individually.
Record the length of each straight section and note where corners occur. This ensures glass panels and posts are positioned correctly.
3. Confirm the Mounting Type
Glass balustrades can be installed using different mounting methods. The fixing type affects how measurements are taken.
- Top mounted posts or channels
- Side mounted systems
- Juliette balcony fixing points
Confirm the mounting method before ordering materials.
4. Check the Finished Height
UK building regulations normally require a minimum guarding height of 1100mm for balconies and raised terraces, and 900mm for internal stairs and landings.
If you are unsure about regulations, read our glass balustrade building regulations guide .
5. Check the Fixing Structure
Before installation, confirm that the structure you are fixing into is suitable. Concrete, steel and correctly designed timber structures are commonly used.
The fixing surface must be strong enough to support the balustrade system and glass panels safely.
Planning Your Balustrade Layout
Once you have your measurements, you can begin planning the layout of posts, glass panels and corners. This helps determine the number of panels required and ensures the system is evenly spaced.
You can quickly design a layout using our online balustrade builder.
Common Measuring Mistakes
- Forgetting to measure corners separately
- Not allowing space for posts or channels
- Recording measurements incorrectly
- Failing to check fixing surfaces
Taking careful measurements at the start of a project helps avoid delays and ensures your glass balustrade fits perfectly.