Customers often want to know the answer to how much for a DIY Mezzanine Floor Kit? It should be obvious that this depends a lot on the size of the mezzanine you want and whether you want to add stairs and safety railings. One thing is for sure, a mezzanine floor is a fantastic, cost-effective investment for increasing the useable space in your shed or warehouse.

The larger, the less expensive - How much for a DIY Mezzanine Floor Kit?

A good mezzanine floor has a standard charge for bespoke engineering. This charge will be almost the same for a small mezzanine as it is for a larger mezzanine, so the result is you tend to pay ‘more’ per square metre for a small mezzanine floor than for a larger one.

Here is a price guide for a quality High Tensile Steel Australian Standard Mezzanine floor. If you are paying much less than these prices, then it is not 450G + High tensile steel being used. Prices quoted would include delivery to your site address.

Mezzanines - (Prices at January 2023, 450mm joist centres does not include particle flooring)

Small – Around 15 square metres                $265 per square metre.

Medium around 50 square metres                  $210 per square metre

Large – Around 80+ square metres               $150 per square metre

Australian Standards® Mezzanines - How much for a DIY Mezzanine Floor Kit?

There are Standards that must be followed for mezzanine floors. Some businesses will tell you that if you purchase a new shed with a mezzanine floor, the shed design will be upgraded to make sure the shed you purchase is strong enough to support an additional load that the floor might add. It’s good that they are admitting their sheds are barely strong enough to support their own weight, but ‘additional strength” should not be necessary if the shed was truly built to Australian Standards® in the first place.

A mezzanine floor can have no more than 2mm of vibration and this will be virtually impossible to achieve if Top Hats or mild steel is being used unless there is an awful lot in the floor to stop the vibration going above 2mm. Make sure you are using G450 to G500 High Tensile Steel.

The 7 Essential Elements of an Australian Standards® Compliant Mezzanine floor

Certified G450 to G500 High Tensile Steel

Require: - The Steel Grade & Manufacturer in writing. Engineers need Certified Span Capacities like those published by BlueScope® to verify steel suitability.

Avoid: - Ungraded, untested, or undocumented steel.

Put Safety First. Deflection Certified as Australian Standards® Compliant

Require: - The maximum Bearer & Joist Deflection in writing. Deflection, or sag under load, is critical & must be calculated for all Australian floors.

Avoid: - Undocumented Deflection. It is a simple calculation. Get it in writing.

Vibration Certified as Australian Standards® Compliant

Require: - The maximum Bearer & Joist Vibration in writing. Vibration, or bounce under load, is critical & must be calculated for all Australian floors.

Avoid: - Undocumented Vibration. It is a simple calculation. Get it in writing.

Raking Force exceeding 8.853kN or 885 kg

Require: - The exact amount of Raking Force required to keep the structure upright. Raking Force is a critical requirement for all Australian Flooring.

Avoid: - Undocumented Raking Force. It's a simple calculation. Get it in writing.

C Section Bearers & Joists

Require: - C Sections due to their superior durability, strength & span capacities.

Avoid: - Top Hats & Top Span as they rarely satisfy Deflection & Vibration limits.

Product Mass

Require: - The mass in kilograms. Heavier steel generally means a sturdier floor.

Avoid: - Undocumented mass. Remember, less steel = more profit. Always double-check the weight on the Bill of Materials. People lie. Scales do not.

Check your documentation before purchase - How much for a DIY Mezzanine Floor Kit?

You will find that most mezzanine floors sold in Australia do not meet the requirements above. Even businesses like Lysaght will have Mezzanine floors supplied with bearers which are c250 or c300 and may describe them as “quite substantial” rather than “below Australian Standards®”.

Many people will be retrofitting a mezzanine floor. It is always better to do this as a free-standing mezzanine, using the mezzanine’s own posts to avoid affecting the engineering of the existing shed.

Always consider what parts of your warehouse or shed could get in the way if you want to install a new mezzanine floor. Wall columns, girts and roller doors can all get in the way resulting in a true floor space in a 6m x 6m shed closer to 4.5m x 5.5m. Watch also the clearance under and over the floor.

For DIY you need Simple, extensive building plans - How much for a DIY Mezzanine Floor Kit?

All plans should include in your construction documentation: -

• Bill of Materials so you can make sure everything is on-site before sending the crew. No wasted man-hours.
• Engineering Designs & Connection
• Full Certification
• Production drawings

 You know your project will be safe with Professional Choice Sheds Custom Mezzanine floors. All engineering plans include easy-to-use QR Codes that take you directly to a help video to assist with any confusion with joints.

Professional Choice Sheds guarantee: - No mistakes, downtime or confusion – That’s why it’s the Professional’s Choice!