Navigation
Planning Tool · Installation-Ready · BEE 2026

False Ceiling Depth
Calculator for Cassette AC

Check if your false ceiling has enough depth for cassette AC installation. Get modification recommendations, access panel sizing, drainage slope guidance, and material-specific advice.

Depth Check
Modification Cost
Access Panel Sizing
Drainage Slope
12"
Minimum Depth
For 1.5 Ton cassette
14"
Ideal Depth
Recommended clearance
24×24"
Access Panel
For 2+ Ton units
1:100
Drain Slope
Minimum gradient
4.8/5

Rated 4.8 out of 5 by 2,340+ users — India's most trusted AC bill calculator

Verified ratings
Reviewed by Sulaiman Sekh — HVAC ExpertS.R EnterpriseHitachi Authorized

8+ years practical experience in AC / Plant Installation, Maintenance and Repair. HVAC Expert at S.R Enterprise under the authorized dealership of Hitachi. All data is verified against 2026 BEE Tariff Orders and manufacturer specifications.

Affiliate Disclosure: This page contains affiliate links. As an Amazon Associate, The DU Tech Team earns from qualifying purchases. This does not affect our recommendations. Read our full disclosure →

10"
6"10"30"

Enter your ceiling details and click Check to assess suitability.

How This Calculation Works

Commercial HVAC calculations use verified BEE 2026 data and industry-standard formulas.

1

Select Tonnage

Depth requirements vary by cassette AC capacity.

2

Pick Material

Gypsum, grid, concrete, or wood — affects installation approach.

3

Measure Depth

Current false ceiling depth from structural ceiling.

4

Get Assessment

Ideal, adequate, or insufficient with modification costs.