What size forklift do I need? — Capacity, mast height, attachment guide

A neutral, brand-agnostic sizing guide for Irish operators. Capacity, lift height, attachments, and the most common Irish use cases mapped to a forklift class.

The three numbers that decide the truck

  1. Maximum load (kg) — what you're lifting at its heaviest, including the pallet
  2. Maximum height (mm) — top beam of your highest racking + 200mm clearance
  3. Aisle width (mm) — narrowest aisle you need to operate in

Get those three right and you'll exclude 80% of unsuitable trucks before you talk to a dealer.

Capacity classes — what each is for

ClassCapacityTypical useMast height typical
Class 1 — Pallet truck (electric)2,000 kgIndoor pallet shifting, supermarket, light retail logistics200 mm (lifts off floor only)
Class 2 — Reach truck1,400–2,500 kgNarrow-aisle high-bay racking warehouseup to 11 m
Class 3 — 1.5T counterbalance1,500 kgLight warehouse, retail back-of-house3.0–4.5 m
Class 4 — 2.5T counterbalance2,500 kgStandard warehouse, builder's merchant indoor3.0–5.5 m
Class 5 — 3.0–3.5T counterbalance3,000–3,500 kgOutdoor yard, heavier pallets, container loading3.5–5.5 m
Class 6 — 5–7T heavy5,000–7,000 kgSteel, plant, IBC drum handling, construction3.5–4.5 m
Class 7 — Telehandler / VRT3,000–6,000 kg variableConstruction, agriculture, livestock equipment, awkward loadsup to 17 m reach
Class 8 — Multi-directional (Combilift)2,000–6,000 kgLong-load (timber, steel, pipe) in narrow aislesup to 8 m

Common Irish use cases

200m² retail back-of-house, indoor only, single-shift

Class 4 — 2.5T electric counterbalance with a 4.5m mast covers ~95% of retail back-of-house jobs. Quiet, no exhaust, simple to charge overnight.

Builder's merchant — indoor warehouse + outdoor yard

Class 5 — 3.0T LPG counterbalance is the workhorse. LPG bridges indoor/outdoor; pneumatic tyres handle a yard. Mast height 4.0m typical.

Farm / agricultural — yard, livestock, silage

Class 7 — Telehandler. Forks won't cut it on uneven ground or for high-reach silage stacking. JCB and Manitou dominate this market in Ireland; Merlo also strong.

Container loading at a port or distribution centre

Class 5 minimum (3.5T). For 20-ft and 40-ft container loading you want 5.0m mast at minimum. Heavy-duty pneumatic tyres for yard surfaces.

High-bay narrow-aisle racking (warehouse pick rates)

Class 2 reach truck. A 2.5T counterbalance simply can't operate in 2.5m aisles, and you can't put a 7m mast on it without losing capacity. Reach trucks are designed for this.

Long loads — timber, steel, pipe

Class 8 multi-directional, e.g. Combilift C-Series. Operates lengthways down the aisle for long loads. Made in Monaghan; specialist hire in Ireland.

Attachments — when a standard fork won't do

The capacity de-rate trap

Every forklift's rated capacity is based on a "standard load centre" of 500mm — meaning the load's centre of gravity is 500mm in front of the heel of the forks. If your load is deeper than that (which most non-standard loads are), the forklift's actual lifting capacity drops, sometimes dramatically. A 2.5T forklift rated at 500mm load centre might only safely lift 1.8T at 700mm load centre. Always check the load chart on the truck's data plate before lifting anything outside spec.

Tell us your job, we'll size it

Tell us where you are and what you're moving. We route your enquiry to vetted Irish dealers — usually a reply within one working day.

We don't run forklifts ourselves. Vetted Irish dealers receive your enquiry; we collect a small lead fee from them.