What you need to know.
A two-track option may be sufficient when screening is separate. A three-track option provides another channel for coordinating panels or a compatible mesh system. The frame itself may also be deeper. Count the moving panels and examine where each one sits when fully open.
How to choose for your home.
Ask for a side-by-side drawing using your real opening dimensions. Include the mesh specification and frame depth in the comparison. A cheaper quote may simply contain a different configuration rather than a comparable product.
Check how the panels move, as well as the number of tracks.
A track is the channel along which a panel slides. Track count alone does not tell you how many glass panels are fitted, whether mosquito mesh is included or how much of the window opens.
On a narrow screen, scroll across the table to compare all columns.
| What to identify | Two-track option | Three-track option |
|---|---|---|
| Glass and screen positions | iTech offers this two-track window without mesh. Ask about separate mosquito mesh if you need it. | Ask which tracks hold glass and which hold mesh, if any. Check that the quotation includes the mesh you want. |
| Panel movement | Mark panels that stay fixed and panels that move. Show where one slides behind another. | Mark panels that stay fixed and panels that move. Show where each panel slides when open. |
| Open position | Ask the team to mark how much width is open for airflow on the drawing. | Ask the team to mark the open width on the drawing. Do not assume how much opens from the track name. |
| Frame depth | Check that the frame fits the depth of the wall opening and the sill below it. | Check the frame depth and how it will be supported. An extra track can need more space. |
| Cleaning and repairs | Check that the glass, tracks, rollers and water outlets can be cleaned or serviced. | Check that each track can be cleaned. If mesh is supplied, ask how it can be removed or repaired. |
Ask for two drawings of the same opening.
Label the panels A, B and C as applicable. Add an arrow to each moving panel, mark a fixed panel clearly, and label mesh separately from glass. Request a second view with every movable panel in its intended open position.
Compare the open width, handle positions and mesh movement in those drawings. Compare the same opening size, glass, finish and fitting work before deciding whether the extra cost gives you something you need.
Make sure the quotation is clear.
- List the number of tracks and glass panels separately.
- Write down the mesh type and whether it is included in the price.
- Check the drawing of the frame and the way each panel moves before approving it.
Your practical checklist.
- Compare equal opening sizes.
- Identify glass and mesh tracks.
- Check frame depth.
- Confirm unobstructed opening width.
What to share with our team.
Send a photo of the window or door opening and the room around it. Write the approximate width and height in feet, inches or millimetres, and clearly mention the unit. Tell us what matters most: fresh air, privacy, mosquito mesh, easy cleaning or space saving.
The team will confirm the final size, suitable materials, price and installation work. If your project needs an engineer’s approval or special safety requirements, discuss these before placing the order.
Discuss your project with iTech
