How many bags does an 18×70 ft mushroom grow room hold?

3,000 compost bags on 2 rows × 7-tier racking, giving about 6,000 kg of button mushrooms per 45-day cycle at the standard 2 kg per bag, and 6-7 cycles a year.

What size Daikin unit does an 18×70 ft room need?

A 12 TR Daikin packaged DX unit with a ductable evaporator — the design load MushroomWale sizes for 16-18°C at 85-90% RH in cropping through an Indian summer. Carrier (Haier-CCR, R-404a) is an alternative on 18×40, 18×60 and 18×70 rooms.

What does the 18×70 ft machine package cost?

₹3,38,960 ex-GST on rate card v2.92 (October 2026) for the Daikin condensing unit and evaporator. PUF panels (₹1,535/m² 60mm common walls, ₹1,750/m² 80mm external, ₹1,875/m² roof, ₹120/m² installation), doors, racks, electricals and misting are quoted line by line for your room count; GST at 18% and transport are extra.

What is the floor area of an 18×70 ft room?

1,260 sq ft (18×70 ft), on which the 2-row 7-tier racking carries 3,000 bags. Civil work — floor, plinth and drainage — is client scope.

Can I start with one 18×70 ft room and add more?

Yes. Each room has its own DX unit, so rooms are added one at a time; MushroomWale lays out the electrical panel, drainage and compost supply for the final room count from the start. Chilled-water and ammonia plants replace room-by-room DX above about 1,000 kg/day — see the refrigeration comparison.

The rack corridor of a finished MushroomWale grow room, before filling

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RECOMMENDED COMMERCIAL MODEL

18 × 70 ft Grow Room

Standard button mushroom cultivation room with Daikin refrigeration, designed for Indian conditions up to 50°C ambient temperature.

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3,000+

Bags

6,000 kg

Per Cycle

200 kg

Harvest/Day

12 TR

Daikin

18×70 ft Rack Layout

Bags:3,000

Rows:2 Rows

Tiers:7 Tiers

The short answer

How much does an 18×70 ft mushroom grow room cost?

On MushroomWale's rate card v2.92 (Oct 2026) the Daikin 12 TR climate package for a 18×70 ft room costs ₹3,38,960 + 18% GST. The room is built from PPGL PUF panels at ₹1,535/m² (60 mm shared walls), ₹1,750/m² (80 mm outer walls) and ₹1,875/m² (roof), and holds 3,000 bags for about 6,000 kg of button mushrooms per cycle. Racks, electricals and civil work are quoted per site, so a complete room price comes from the instant quotation.

Production Timeline

60-day cycle: Incubation (Day 0–30) + Production (Day 30–60)

Incubation

Day 0–30

No harvest

Production

Day 30–60

200 kg/day

Cycle Average (60 days)

100 kg/day

Harvest Average (30 days)

200 kg/day

For continuous daily harvest, use pairs of rooms: while one room is in incubation (Day 0–30), another produces (Day 30–60). Total rooms needed = 2 × Production rooms.

Complete Specifications

Room Dimensions

Room Size18 × 70 ft

Front Height16 ft

Back Height14 ft

PUF Walls80 mm

PUF Common Wall60 mm

PUF Roof80/110 mm corrugated

Rack Layout

Number of Rows2 rows

Row Width5 ft each

Row Length62 ft

Stack Levels7 levels

Rack MaterialPET wire mesh on MS frames

Center WalkwayMin 3 ft

Production Capacity

Bag Capacity3,000+ bags (10 kg)

Yield per Bag2 kg

Cycle Length60 days (30+30)

Yield per Cycle6,000 kg

Cycle Average (60 days)100 kg/day

Harvest Average (30 days)200 kg/day

Refrigeration System

BrandDaikin

Capacity12 TR

BTU Rating144,000 BTU

Max Ambient50°C

LED Battens40 units

Production Parameters

Spawn Run

Temperature22–24 °C air

RH90–95%

CO₂5,000–15,000 ppm

Case Run

Temperature24–25 °C

RH92–95%

CO₂5,000–10,000 ppm

Pinning

Temperature17–18 °C

RH88–92%

CO₂under 1,000 ppm

Cropping

Temperature16–18 °C

RH85–90%

CO₂under 1,000 ppm

Scope of Supply

Structural

PUF insulated walls (80mm density 40±2)
PUF common wall (60mm)
PUF roof panels (80/110mm corrugated)
MS frame structure with powder coating
PET wire mesh racks (7 levels)
Aluminum/SS door with gasket seal
Drain point with trap

Mechanical

Daikin refrigeration unit
EC fans for air circulation
Insulated duct system
Dampers and gravity louvers
Misting/fogging line
Water tank inlet connection
Condensate drain system

Electrical

Main distribution panel
PLC control panel
LED batten lights
Temperature sensors
Humidity sensors
CO₂ controller
Wiring (1mm/1.5mm/4mm as required)

Civil Requirements (By Client)

Level RCC floor with anti-skid finish
Floor slope towards drain (1:100)
Waterproofing on floor
3-phase power connection
Water supply point
Drainage connection

Optional Add-ons

HEPA Filter Unit

99.97% air filtration for spawn run

Extra Sensors

Additional temp/RH monitoring points

Automation Upgrade

Full IoT with mobile app control

Backup Generator

Power backup system integration

CCTV Integration

Remote monitoring cameras

Get a Custom Quote for 18 × 70 ft Grow Room

Includes complete engineering, Daikin refrigeration, climate controls, and turnkey installation.

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