The main difference is how the panels open. Full-height shutters have panels that run the height of the opening. Tier-on-tier shutters have separate upper and lower panels that open independently. Either can provide privacy and adjustable daylight; the choice depends on how you use the window.
The comparison at a glance
| What matters | Full-height | Tier-on-tier |
|---|---|---|
| Panel opening | A full-height panel opens as one piece. | Upper and lower panels open separately. |
| Louvre control | A divider rail or split-tilt design may allow upper and lower slats to tilt separately. | Each tier has its own louvres and panel opening. |
| Appearance | A continuous full-window outline; a rail may be included. | A visible horizontal division between tiers. |
| Street privacy | Consider split louvres for privacy below and light above. | Open upper panels while keeping lower panels in place. |
| Space | Check swing and fold-back space for full-height panels. | Check clearance for both sets of panels. |
| Price | Compare like-for-like written quotes: size, material, finish, panels, fittings and installation all affect cost. | |
Split louvres are not split panels
You may want daylight at the top and privacy at the bottom without folding the upper panels away. A full-height design with separately controlled louvres may achieve that. If you want to open the upper panels completely while leaving lower panels closed, discuss tier-on-tier.
See our full-height range and tier-on-tier range.
Which works for a bay window?
Both can be considered. The survey must account for bay angles, recess depth, projecting handles and space beside each panel. Consider a horizontal rail against the window’s existing glazing bars rather than placing it at a convenient but visually awkward height.
For a front room, think about the view from the pavement at different times of day. For a bedroom, remember that standard louvred shutters are not guaranteed blackout: light can pass around panels and louvres.
Three ways to decide
- You mostly adjust the slats: compare full-height layouts, including split-louvre options.
- You want an open view through the upper glass: ask how tier-on-tier panels would open in the room.
- You have a tall sash or detailed bay: compare both against the existing window divisions. See shutters for period homes.
Warmth and upkeep
Both styles cover the full opening when closed. That does not establish that one delivers a particular energy saving. For the limits, read our shutter insulation guide. Dust with a soft cloth and follow the supplied care instructions for the selected finish.
Five checks before ordering
- Where will the horizontal division sit?
- Can every panel open without hitting a wall, sofa, tap or radiator?
- Will you still reach handles and required vents?
- Which louvres tilt together and which move independently?
- Does the quote include the finish, fitting, lead time and guarantee terms?
Talk through your windows with Ash
Book a free shutter consultation, or call 01277 592419. Send your postcode, the rooms you are considering and a few window photographs. Rough sizes help the initial conversation; final measurements need a survey before ordering.
