A goods lift pit is the space below the bottom floor level that holds the buffers, the bottom of the cabin frame and safety parts. Before you build, plan three things together: the pit depth, the headroom above the top floor and the shaft size, because a goods lift can only be as safe and useful as the space you give it.
This guide explains goods lift pit, headroom and space planning in simple steps for plant heads, civil engineers and purchase teams in Rajasthan. R K Engineering Works designs, makes and installs goods lifts and hydraulic goods lifts from VKI Area, Jaipur, and we are often asked these questions at the drawing stage.
Why goods lift pit and space planning matter
Most goods lift problems on site start with civil work done too early. A pit that is too shallow, a slab that is too low or a shaft that is a few inches short can force a smaller cabin, a lower speed or costly rework.
When the lift maker and the civil team plan together, the lift gets the right platform size, the safety parts fit as designed and handover is faster. So share your load, floors and building drawing with the lift maker before the shaft walls are cast.
The five spaces every goods lift needs
Every goods lift, hydraulic or traction, needs these spaces. Their sizes change with load, speed and drive type, so treat this as a checklist, not a fixed size chart.
- Pit: the dry, level space below the bottom landing for buffers, guide rail bases and the cabin underside.
- Shaft (hoistway): the vertical space the cabin travels in, with room for guide rails, the cabin frame and doors.
- Headroom (overhead): the clear height from the top landing floor to the underside of the shaft roof slab.
- Machine or power unit space: a machine room for traction lifts, or a small room or corner for the hydraulic power unit and control panel.
- Landing and approach space: clear floor in front of each door for trolleys, pallet trucks and forklifts to turn and load.
How deep should a goods lift pit be?
Pit depth depends mainly on the lift speed, the drive type and the buffer type. Faster lifts need deeper pits because the buffers and run-by must be longer. Hydraulic goods lifts usually run at lower speed, so they often need a shallower pit than a traction lift of the same load.
Your lift maker will give the exact pit depth on the layout drawing. Use that figure, not a value from another project. Also check these pit points:
- The pit floor must be strong enough for the buffer and rail loads given on the drawing.
- The pit must stay dry. Plan waterproofing and, in low-lying areas, a drain or sump outside the pit.
- Give a safe way into the pit, such as a fixed ladder, for maintenance staff.
- Keep the pit clear of pipes, cables and anything not part of the lift.
- If there is a room or walkway below the pit, tell the lift maker. Extra safety measures are then needed.
Our guide on industrial goods lift types and safety explains how the drive choice changes these needs.
Headroom: the space above the top floor
Headroom is the clear height above the top landing. It must hold the cabin height, the top frame, the run-by and a safety space for a person on the cabin roof during service.
A tall cabin for high loads or racks needs more headroom. A traction lift with the machine above the shaft also needs space for the machine and its access. If the roof is already built and headroom is short, tell the lift maker early. Sometimes a lower cabin, a different drive or a small roof extension can solve it.
Shaft size and platform size
Start from the goods, not the building. Measure the biggest pallet, trolley, coil or machine part you will carry, then add space for the person or truck that moves it. This gives the clear platform size. The shaft is then sized around the platform, the guide rails and the door type.
Tell the lift maker if forklifts will enter the cabin. Forklift loading puts heavy wheel loads on the platform edge and needs a stronger floor and sill. Our guide on why a hydraulic goods lift helps your plant covers common loading methods.
Quick space checklist for a goods lift
Use this table when you meet your architect or civil contractor. It lists what to ask and why it matters.
| Space | What to confirm | Why it matters |
|---|---|---|
| Pit | Depth, floor strength, waterproofing, ladder | Holds buffers and rails; must stay dry and safe |
| Headroom | Clear height above top landing | Safe run-by and safe space on cabin roof |
| Shaft | Clear width and depth, plumb walls | Fits platform, rails and doors without rework |
| Machine / power unit | Room size, ventilation, access | Keeps drive and panel cool and serviceable |
| Landings | Door width, approach space, floor level | Smooth loading with trolleys or forklifts |
| Power | Supply type and a separate isolator | Safe operation and easy isolation for service |
Hydraulic or traction: how the drive changes space
A hydraulic goods lift uses a pump and cylinder. It is well suited to low to medium rise buildings and heavy loads. It does not need a machine room above the shaft, so headroom planning is often simpler. The power unit can sit in a small room near the shaft at the bottom level.
A traction goods lift uses ropes and a machine. It suits taller buildings and longer travel. It needs space for the machine, either in a machine room or inside the shaft. If you are not sure which drive fits your building, our team can compare both on your drawing.
Common planning mistakes to avoid
- Casting the pit before the lift layout is final.
- Forgetting the beam or slab load at the top of the shaft for the lifting hook used during installation.
- Leaving no space for the power unit or control panel.
- Making door openings too narrow for the actual pallet or trolley.
- Not planning drainage, so the pit fills with water in the monsoon.
- Placing the shaft where trucks cannot reach the landing easily.
All our goods lifts are designed to IS 14665 where relevant, and our quality, environment and safety systems are certified to ISO 9001, ISO 14001 and ISO 45001.
FAQs
Who gives the goods lift pit depth?
The lift maker gives the pit depth on the lift layout drawing. It depends on the load, speed, drive and buffer type of your lift.
Does a hydraulic goods lift need a machine room?
It does not need a machine room above the shaft. It needs a small, ventilated space near the shaft, usually at the bottom level, for the power unit and control panel.
Can a goods lift be added to an existing building?
Yes, in many cases. We first check the floor levels, headroom, pit space and the strength of the structure, and then suggest a layout that fits.
What if my pit has water problems?
Plan waterproofing at the time of casting. In low-lying sites, add a drain or sump outside the pit. A dry pit protects the buffers, rails and wiring.
Which standard applies to goods lifts?
In India, IS 14665 covers electric traction lifts, including goods lifts. We design our goods lifts to IS 14665 where relevant.
Plan your goods lift space with us
Planning a new shed, warehouse or factory floor? Book a site survey with our engineering team before the civil work starts. We will check your pit, headroom and shaft and give a clear goods lift layout. Call +91 9799108009 or +91 9413341806, email contact@rkengineeringworks.in, or request an engineering consultation.