What are jacking and support stools?

Jacking and support stools are heavy-duty fabricated support structures used to support, position or stabilise loads during lifting, jacking, maintenance and installation operations.

What is the difference between a PackStool and a JackStool?

A PackStool is used as a heavy-duty support stool for stable load support, while a JackStool is designed for applications requiring controlled centreline loading or jacking arrangements.

What capacities are available?

Multisec PackStool and JackStool configurations are available with capacities up to 250 tonnes, depending on stool type, height and project requirements.

Can jacking and support stools be manufactured to custom heights?

Yes. Multisec can review bespoke height and configuration requirements for jacking and support stools where standard options are not suitable.

Where are support stools commonly used?

Support stools are commonly used in offshore, marine, heavy engineering, infrastructure, industrial maintenance and fabrication environments where loads require stable support during lifting or jacking operations.

Are JackStools suitable for centreline loading?

Yes. JackStools are designed for controlled centreline loading applications where the load path must be managed through the centre of the stool.

Can support stools be used for offshore projects?

Yes. PackStool and JackStool arrangements may be suitable for offshore and marine projects depending on the specific load, height, stability and project requirements.

Are jacking and support stools supplied with documentation?

Multisec jacking and support stools can be supplied with relevant documentation, certification and project-specific technical information depending on the application.

Can Multisec design bespoke support arrangements?

Yes. Multisec can review bespoke support stool requirements including capacity, height, footprint, centreline loading, stability and application-specific design needs.

How do I select the correct support stool?

Selection depends on the required load capacity, stool height, load path, centreline loading requirements, working environment and application. The Multisec engineering team can review your project requirements and recommend a suitable PackStool or JackStool solution.

HOME | CUSTOM LIFTING SOLUTIONS | JACKING & SUPPORT STOOLS

ENGINEERED SUPPORT SOLUTIONS

JACKING &
SUPPORT STOOLS

Heavy-duty steel stools for packing, load support and controlled jacking in offshore, marine and industrial applications. Up to 250 tonnes per stool under uniformly distributed loading; JackStool also supports 50 tonne centreline jacking and point loads.

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PackStool

Distributed Support Solution

A robust, cost-effective packing and support stool for general heavy lift applications where uniform load distribution is required.

250t UDLEvenly distributed
Full 900mm × 900mmBearing area
Not rated forPoint load or jacking operations

Heights: 400mm | 800mm | 1000mm

Enquire about PackStool →

JackStool

Support + Jacking Solution

Engineered for combined packing, support and centralised jacking operations. Designed for controlled point loading at the centreline.

250t UDLUniformly distributed support
50t centrelineJacking / point load over a 200 × 200 mm area
Full 900mm × 900mmBearing area
Integral centreHandling point

Heights: 400mm | 800mm | 1000mm

Enquire about JackStool →

Choose the Right Stool for Your Load

For packing and support under uniformly distributed loading, choose PackStool. For support with controlled centreline jacking or point loading, choose JackStool.

A 900 × 900 mm footprint and standard heights of 400, 800 and 1,000 mm help you plan the support arrangement. Select the height to suit your working clearance and confirm the load applied to each stool.

Send us your required height, quantity and loading arrangement for a quotation and application advice.

Technical Overview

Support Stool Range

PackStool and JackStool share a 900mm × 900mm footprint and 250t UDL capacity, with different load-use cases for distributed support and centreline jacking.

Technical Comparison

Parameter	PackStool	JackStool
Application	Packing and support	Packing, support and centrepoint jacking
Uniformly distributed support capacity	250t per stool	250t per stool
Point Load Capacity	Not rated for point load	50t centreline jacking / direct point load
Point-load area	Not applicable	200 × 200 mm
Standard Heights	400mm / 800mm / 1000mm	400mm / 800mm / 1000mm
Footprint	900mm × 900mm	900mm × 900mm
Centre Handling Point	No	Yes
Load Spreader Puck	Not applicable	Not Included
Material	BS EN 10025-2:2004 S355 J2	BS EN 10025-2:2004 S355 J2

The 250 tonne rating applies to uniformly distributed support loading. JackStool’s centreline jacking / point-load rating is 50 tonnes over a 200 × 200 mm loading area. These are different loading conditions; the 250 tonne rating does not apply to centreline jacking. Stool selection and setup must suit the actual load and supporting surface.

Support Stool Dimensions

Check the 900 × 900 mm footprint and overall height against your required support position. The drawing shows the overall dimensional outline; it is not an assembly or loading instruction.

Applications

Typical Applications

Offshore Support

Heavy module, deck and marine support applications.

Jacking Operations

Controlled centreline jacking using the JackStool configuration.

Load Spreading

Full footprint support for evenly distributed compressive loads.

Custom Fabrication

Non-standard heights and footprints reviewed on request.

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Discuss Your Support & Jacking Requirements

Tell us the stool type, height and quantity you need, together with the load and how it will be supported. If you are unsure which configuration is suitable, choose “Not Sure” and our team can advise.

Technical Support

Advice on stool selection and application suitability.
Verification of height and load requirements.
Custom heights and configurations available.
Support from experienced lifting engineers.

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Company Name

Telephone Number

Required Height

Required Stool Type

Quantity required (optional)

Project Details

Need urgent assistance? Speak directly to our engineering team +44 (0)1642 240 672

FAQ

Support Stool Questions

Answers to common questions about PackStool and JackStool capacity, loading conditions, jacking use and custom configurations.

What is the difference between PackStool and JackStool?

PackStool is designed for packing and support under evenly distributed loading. JackStool is designed for packing, support and controlled centreline jacking, with additional point load capability.

What is the maximum capacity of the support stools?

Both PackStool and JackStool are rated to 250 tonnes per stool under uniformly distributed loading conditions.

Can PackStool be used for jacking operations?

No. PackStool is not rated for centralised point loading or jacking operations. JackStool should be used where centreline jacking or point loading is required.

What point load can JackStool support?

JackStool is rated for a 50 tonne direct point load at the centreline over a 200 × 200 mm loading area. This is separate from its 250 tonne uniformly distributed support rating.

What standard heights are available?

Standard heights are 400mm, 800mm and 1000mm. Custom heights and footprints can also be reviewed on request.

What material are the stools manufactured from?

The stools are manufactured from BS EN 10025-2:2004 S355 J2 steel.

JACKING &
SUPPORT STOOLS