Standard decorative louver panels in India measure 2900 mm (9.5 ft) in length, 100–220 mm (4–8.6 inches) in width, and 6–30 mm in thickness, with each panel covering roughly 3.5–7 sq ft of wall. WPC louvers are the thickest and most rigid (15–30 mm), while charcoal and PVC louvers are slimmer (6–12 mm) and lighter.
Those are the headline numbers. But "louver dimensions" means slightly different things depending on the material you choose, whether the panel goes indoors or outdoors, and how the grooves are profiled. Getting these numbers right before you buy decides how many panels you order, how much you spend, and how clean the final wall looks.
This guide covers every measurement that matters — based on what we see across 500+ completed cladding projects in Bangalore.
What Do Louver Dimensions Actually Include?
A louver (also spelt louvre) is a long, grooved decorative panel used for wall and ceiling cladding. Every louver panel is defined by four measurements:
- Length — the height the panel runs, usually floor to ceiling. Standard: 2900 mm (9.5 ft); some ranges come in 2440 mm (8 ft) or 3050 mm (10 ft).
- Width — the face of a single panel, usually 100–220 mm (4–8.6 in). Width determines how many panels sit side by side on your wall.
- Thickness — how far the panel projects off the wall, from 6 mm (slim charcoal louvers) up to 30 mm (heavy-duty WPC). Thickness drives depth, shadow effect and durability.
- Groove count / profile — how many flutes are cut into one panel face (e.g., 6G = 6 grooves, 8G = 8 grooves). More grooves on the same width means finer, denser lines.
One more number matters when budgeting: coverage per panel — the wall area one panel actually hides, which is simply width × length.
Standard Louver Dimensions in India (Quick Reference Table)
| Louver type | Length | Width | Thickness | Coverage per panel |
|---|---|---|---|---|
| WPC louvers (interior) | 2900 mm (9.5 ft) | 150–195 mm (6–7.7 in) | 15–18 mm | 4.7–6.1 sq ft |
| WPC louvers (heavy/exterior) | 2900 mm (9.5 ft) | 155–220 mm | 25–30 mm | 4.8–6.8 sq ft |
| Charcoal louvers | 2440–2900 mm (8–9.5 ft) | 100–200 mm (4–8 in) | 6–12 mm | 3.3–6.2 sq ft |
| PVC louvers | 2900 mm (9.5 ft) | 150–200 mm | 8–12 mm | 4.7–6.2 sq ft |
| Fluted WPC panels | 2900 mm (9.5 ft) | 159–195 mm | 15–25 mm | 5–6.1 sq ft |
| Charcoal flat sheets | 2440 mm (8 ft) | 1220 mm (4 ft) | 4–12 mm | 32 sq ft |
Coverage = face width × length. Actual visible coverage is slightly lower for tongue-and-groove panels, because a small lip tucks behind the next panel — a detail worth confirming before you finalise quantities.
These are the sizes stocked by most Indian manufacturers, including the Century, E3 Clads and Urodecor ranges we carry at Louver Studio. Individual series vary by a few millimetres, so always confirm the exact SKU spec sheet before ordering.
WPC Louver Dimensions Explained
WPC (Wood Polymer Composite) louvers are the most popular choice for feature walls, TV unit backdrops and exterior facades because they combine real-wood texture with waterproof, termite-proof performance.
Typical WPC louver dimensions available in the Indian market:
| Profile | Size (W × L × T) | Approx. coverage | Best for |
|---|---|---|---|
| Slim interior | 170 × 2900 × 17 mm | 5.3 sq ft | Bedrooms, TV walls |
| Standard interior | 195 × 2860 × 15 mm | 6.0 sq ft | Living rooms, offices |
| 8-groove (8G) | 160 × 2900 × 17 mm | 5.0 sq ft | Fine-line modern look |
| Deep-profile | 155–159 × 2900 × 25 mm | ~4.8 sq ft | Bold shadow lines |
| Heavy / exterior | 195–220 × 2900 × 26–30 mm | 6.1–6.8 sq ft | Facades, balconies |
A standard 8-groove WPC louver weighs around 3.5–4 kg per panel, which matters if you're cladding a ceiling or a partition rather than a solid wall.
Rule of thumb from our installs: interiors rarely need more than 15–18 mm thickness; exteriors should be 25 mm or more with a UV-stabilised coating, because thinner panels can bow under direct Bangalore afternoon sun.
Charcoal Louver and Charcoal Panel Dimensions
Charcoal louvers (polystyrene/PS-based fluted panels, such as the E3 VOL-III and Urodecor ranges) are slimmer and lighter than WPC — ideal when you want texture without eating into room space.
- Length: 2440 mm (8 ft) or 2900 mm (9.5 ft), depending on the series
- Width: 100–200 mm — the 4-inch and 5-inch profiles are the most common
- Thickness: 6–12 mm; most premium charcoal louvers sit at 10–12 mm
- Flat charcoal sheets: 2440 × 1220 mm (8 × 4 ft), 4–12 mm thick — used for large seamless highlight areas rather than line-textured walls
Because a charcoal louver projects barely a centimetre off the wall, it's the go-to size for compact bedrooms, corridors, and rental-friendly makeovers where a 25 mm WPC profile would feel heavy.
How Many Louver Panels Do I Need? (Simple Calculation)
Here's the exact method we use for client estimates:
Formula: Panels needed = Wall width ÷ Panel width, rounded up, then add 10% for cutting wastage.
Worked example — a 10 ft wide × 9.5 ft high TV wall:
- Wall width = 10 ft = 120 inches
- Panel width = 6 inches (a 150 mm profile)
- 120 ÷ 6 = 20 panels (each 9.5 ft panel covers full floor-to-ceiling height in one piece — no horizontal joints)
- Add 10% wastage for cuts around switches, edges and errors → order 22 panels
For walls taller than 9.5 ft, or for mixed layouts with windows, use the area method instead: wall area in sq ft ÷ coverage per panel, plus 10–15% wastage. A 95 sq ft wall with 4.7 sq ft panels needs about 21 panels before wastage.
Pro tip: always run louvers vertically on standard-height Indian ceilings (9–10 ft). One 2900 mm panel spans the full height with zero joints — horizontal installs need joints and waste more material.
How to Choose the Right Louver Thickness
Thickness by application
- Interior feature wall / TV unit → 12–18 mm WPC or 8–12 mm charcoal: enough depth for shadow lines and easy adhesive install.
- Ceiling → 8–12 mm charcoal or PVC: lighter panels reduce load and sag risk.
- Exterior facade / balcony → 25–30 mm UV-coated WPC: resists bowing, heat and rain.
- Small rooms and corridors → 6–10 mm charcoal: minimal projection preserves floor space.
- High-traffic commercial walls → 17–25 mm WPC: dent resistance and durability.
Thickness is the dimension most people get wrong. A thicker panel isn't automatically better — it's about matching projection and rigidity to the location. An 18 mm interior panel installed on an exterior facade is the most common (and most expensive) sizing mistake we're called in to fix.
How to Measure Your Wall Before Ordering Louvers
Accurate louver dimensions on paper are useless if the wall measurements feeding them are wrong. Here's the routine we follow on every site visit:
- Measure width and height at two or three points each — Indian walls are rarely perfectly square, so use the larger reading.
- Deduct large openings (doors, full windows) but ignore switchboards and small cut-outs — they come out of wastage.
- Check your ceiling height. If it's under 9.5 ft, a 2900 mm panel covers it in one run. If it's over, plan a horizontal groove line or a border strip at a deliberate height.
- Note the wall condition. Undulating or damp-prone walls need a plywood or aluminium frame first, which adds 8–20 mm to the total projection — factor this into skirting and furniture clearances.
- Photograph the wall and share the measurements with your dealer. At Louver Studio we cross-check panel counts against the actual SKU width before billing, so you don't over-order.
What About Door, Window and Ventilation Louver Sizes?
The louver dimensions above cover decorative wall panels — the products this guide (and our showroom) focuses on. Three other products share the name:
- Door louvers (the ventilation slats cut into doors) come in standard cut-out sizes from 12″ × 12″ up to 24″ × 64″.
- Plantation shutter louvers (window blinds) use blade widths of 2½″, 3½″ or 4½″.
- HVAC/architectural louvers (metal air-intake grilles) are sized to airflow "free area" — the industry test standard is a 48″ × 48″ frame, with 30–60% free area typical.
If your project is about airflow rather than aesthetics, those are engineered products sized by a ventilation consultant. If it's about transforming a wall or ceiling — read on.
Louver Sizes We Stock in Bangalore
As authorized dealers for Century Louvers (DEUCE, SOLE, TROIKA and SPLAY series), E3 Clads (MABEL WPC and VOL-III charcoal ranges), Urodecor and Bella, we stock interior and exterior profiles across the full standard size range in this guide — 8 ft and 9.5 ft lengths, 4″–8.6″ widths, and 6–30 mm thicknesses, in 50+ finishes.
Every brand's SKU differs by a few millimetres, and that difference changes your panel count. Bring your wall measurements to our Bangalore showroom (or WhatsApp them to us) and we'll give you an exact panel count, wastage allowance and per-sq-ft estimate — usually within the hour.
Frequently Asked Questions
The standard louver panel size in India is 2900 mm long (9.5 ft), 150–200 mm wide (6–8 in), with thickness ranging from 6–12 mm for charcoal/PVC louvers and 15–30 mm for WPC louvers. Coverage is typically 4–7 sq ft per panel.
Most louvers are 9.5 feet (2900 mm) long, designed to span a standard Indian ceiling height in a single piece. Some charcoal series come in 8 feet (2440 mm), and select exterior profiles reach 10 feet (3050 mm).
Use 25–30 mm thick UV-stabilised WPC louvers for exteriors. Panels below 20 mm can bow or fade under direct sun and rain. Interior walls only need 6–18 mm depending on the material.
A 10 × 10 ft wall (100 sq ft) needs about 20–21 panels of a 6-inch-wide, 9.5 ft louver, plus 10% wastage — so order 22–23 panels. Divide your wall width in inches by the panel width in inches for an exact count.
No. They share the 2900 mm length, but charcoal louvers are much thinner (6–12 mm vs 15–30 mm for WPC) and often narrower (4–5 in profiles are common). WPC suits exteriors and heavy use; charcoal suits slim interior styling.
The "G" is the groove count — the number of flutes machined into one panel face. An 8G louver has 8 grooves; on the same 160 mm width, more grooves create finer, denser lines, while fewer grooves give broader, bolder planks.
Yes. WPC, PVC and charcoal louvers all cut cleanly with a fine-toothed saw, so panels are trimmed on site for height, switchboards and edges. That's also why every estimate should include a 10% cutting-wastage allowance.
