Thickness, grade and application
| Thickness | Grade | Rate (₹/sq ft) | Application |
|---|---|---|---|
| 6 mm | Interior compact | ₹180 – 280 | Locker doors, vanity panels, furniture components |
| 8 mm | Interior compact | ₹230 – 340 | Wall lining in wet areas, worktops in labs and pantries |
| 12 mm | Interior compact | ₹300 – 450 | Toilet cubicle doors and dividers |
| 8 mm | Exterior grade, UV stable | ₹380 – 520 | Balcony cladding, soffits, semi-exposed walls |
| 10 – 12 mm | Exterior grade, UV stable | ₹450 – 650 | Facade rainscreen panels |
| Cubicle hardware set | SS 304 or 316 | ₹4,500 – 12,000 per cubicle | Hinges, indicator lock, legs, headrail |
Installed rates for toilet cubicles typically run ₹28,000–55,000 per cubicle including hardware and fixing.
Where compact HPL earns its place
- Toilet cubicles. Twelve millimetre compact with SS hardware is the standard for commercial washrooms in India and there is no better answer. It ignores water, cleans with anything, and does not rust or swell.
- Wet-area wall lining. Large panels with minimal joints in a pantry, a lab or a changing room, where tile grout would become a cleaning problem.
- Lockers and storage in humid spaces. Gym, clubhouse and site-office lockers where a board product would fail.
- Balcony and semi-exposed cladding. Exterior grade holds colour far better than laminate-faced board and does not delaminate.
- Worktops in service areas. Not a kitchen counter substitute, but excellent for a utility or a pantry run where stone is unnecessary.
Fixing and machining: the practical detail
- Fix mechanically, not adhesively. Through-bolts, rivets with expansion sleeves, or undercut anchors into the back face for a concealed fix. Compact HPL moves with humidity and adhesive-only fixing will fail.
- Every fixing hole is oversized by 2–3 mm to allow movement, with one fixed point per panel and the rest sliding.
- Edges do not need banding — the core is the material, and a machined edge with a small chamfer looks intentional. This is a genuine cost saving over board products.
- Use carbide or diamond tooling. HPL contains a high proportion of cured phenolic resin and destroys ordinary blades within a sheet or two.
- Support during cutting matters. A 12 mm sheet is heavy and will chip at the exit edge if unsupported.
Mumbai performance
- Water has no effect on compact HPL. Cubicle panels standing in a washroom that is hosed down daily perform indefinitely, which is why the material replaced marble and board cubicles in Indian commercial buildings.
- Salt air has no effect on the panel; it does affect the hardware. In a sea-facing building specify SS 316 cubicle fittings, not SS 202 masquerading as stainless.
- UV is the only real limitation. Interior grade used on a sunlit balcony will fade and develop a chalky surface within two or three years. Exterior grade is a different resin system and holds up.
- Thermal and humidity movement is small but real. On a long run of cladding, expansion gaps at every panel joint and slotted fixings are required.
- Fire performance is generally good for a laminate product and FR grades are available; check against the landlord’s fit-out manual for commercial work.
Care, life and BOQ wording
- Clean with detergent and water, or with a standard washroom cleaner. It tolerates chemicals that would destroy any painted or laminated board.
- Expected life: 15–20 years in a commercial washroom, longer in a dry interior application.
- BOQ: “Toilet cubicles in 12 mm compact HPL, both faces decorative, machined and chamfered edges; SS 316 hardware set including indicator lock, hinges, legs and headrail.”
- BOQ: “Exterior cladding in 10 mm exterior-grade UV-stable compact HPL, mechanically fixed to an aluminium sub-frame with slotted holes and 8 mm open joints.”
- BOQ: “Adhesive-only fixing is not permitted for any compact HPL element.”
Specification summary
| Property | Specification |
|---|---|
| Construction | Kraft and resin core, decorative both faces, self-supporting |
| Thickness | 12 mm cubicles, 8–10 mm cladding, 6 mm panels |
| Grade | Exterior UV-stable grade for anything sunlit |
| Fixing | Mechanical, with slotted holes; never adhesive only |
| Edges | Machined and chamfered; no banding needed |
| Hardware | SS 316 in coastal buildings |
| Rate | ₹180 – 650 per sq ft, ex-GST |
| Life | 15 – 20 years in commercial washroom use |
Frequently asked questions
What is the difference between HPL and ordinary laminate?+
Ordinary decorative laminate is a 0.8–1 mm sheet that must be bonded to a board. Compact HPL is the same material pressed to 6–12 mm, so it is self-supporting and needs no substrate. That is why it works in wet areas where a board core would fail.
Can compact HPL be used outdoors in Mumbai?+
Exterior grade, yes — it is a different resin system with UV stabilisers and a weather-resistant surface, and it holds colour well. Interior grade outdoors fades and chalks within two to three years. The two look identical in a showroom, so specify by grade and get it confirmed in writing.
Why are HPL toilet cubicles so expensive?+
Most of the cost is hardware and fixing, not panel. An SS 316 hardware set with an indicator lock, adjustable legs and a headrail runs ₹4,500–12,000 per cubicle, and installation is precise work. Panel at 12 mm is typically a third of the installed cost.
Does compact HPL need edge banding?+
No, and that is one of its advantages. The core is the same material as the face, so a machined and chamfered edge is a finished edge. It removes the commonest failure point of every board-based product in a wet area.
Can it be glued to a wall?+
It should not be. Compact HPL moves slightly with humidity, and an adhesive-only fixing puts that movement into shear at the bond line. Use mechanical fixings with slotted holes, or undercut anchors into the back face if you want a concealed fix.