What are the steps and materials required to install a mezzanine?

At least two adults are required to install a mezzanine, (they do not need to be DIY professionals). It is recommended to use safety equipment such as gloves, boots, etc., to avoid any accidents.

For the mezzanine floors in the L and XL range, a scaffolding or ladder system may be required for work at height and manual or electric lifting equipment for the primary beams, especially if the structure is over 3 m high. All other ranges are easily lifted by hand.

You will need the following tools to install the mezzanines: tape measure, a spanner set for nuts and bolts and a screwdriver (an electric screwdriver makes the job much easier), a spirit level, hammer, drill and a cutting tool for the board (handsaw, jigsaw, circular saw...).

This video shows you how to install a TM 15 mezzanine.

Can I install the mezzanine in my apartment? Will the structural floor bear the weight?

Yes. As they are manufactured with light steel profiles with a high yield point they are very light and the load per column is very low. The only restriction is the storage load on the mezzanine: instead of 40.96lb/ft², it may be reduced to 1764lb for the whole mezzanine.

A home with a concrete structure usually supports a point load of at least 441lb on a surface of 2x2". The T8 mezzanine weighs 439lb and the T15 mezzanine weighs 785lb, both weights are distributed over 4 columns.

You can install either of these two metal mezzanines in your home, provided that the load stored on them is limited. Ask MezzaninesOnline about the specific features of your project.

How long does it take to install a mezzanine on my own?

You can do it yourself with the help of a friend. It is easily installed in a few hours, depending on the product. The times are a guideline and for assembly only. You need to add the time it takes to measure up, move the components to the location, clean up, etc.

S Range: 4-6 hours with 2 people

M Range: 8-10 hours with 2 people 

L Range: 15-22 hours with 2 people

XL Range: 25-28 hours with 2 people

The time required for fitting accessories (ladders, handrails...) could vary between 2-8 hours depending on the quantity, as well as the type/model of accessory.

How can I find and hire an installer for Tecrostar products?

You can find an fitter near you on This website puts fitters and customers in contact, so the price and the responsibility of the installation is the fitter's. This website is not associated with MezzaninesOnline. 

MezzaninesOnline can provide you with an estimate of the cost of assembly that depends largely on the distance between the assembly team and the installation site and the type of service hired (prior visit and measuring, delivery service and transport of goods to the site).

In any case, this estimate must be agreed between the client and the fitter. 

Attaching the mezzanine

One of the most important sections is attaching the mezzanine. For greater safety and stability we recommend attaching the columns to the floor with the fixings supplied with the kit. In addition, we recommend attaching the mezzanine to the adjoining walls in order to stabilise the structure. The components for attaching the structure to the wall are also included.

Anchoring the columns to the floor

Anchoring the columns to the floor adds stability to the structure. We always recommend anchoring them, especially if mezzanines are installed in places where the columns can be knocked into (circulation of forklifts, etc.).

If the mezzanine is installed in a home and it is attached to the wall you can purchase column base kits so you don’t have to anchor the columns to the floor.

Attaching the structure to the wall

Depending on the number of adjoining walls, there are different systems for improving safety and stability.


A) Wall anchors

B) Brace

C) Z brace

D)Stairs (the stairs stabilise the structure)

E) pacer brace

A) Wall anchors  B) Brace  C) Z brace  D)Stairs (the stairs stabilise the structure)  E) pacer brace

1. Two walls and anchored to the floor:

1.1  Two facing walls. Only wall anchors are required.

1.2  Two perpendicular walls. Only wall anchors are required.

1.3  Two perpendicular walls, one of them further away from the mezzanine. Wall fixings and spacer brace on the separated wall.

Two walls and anchored to the floor

2. One wall and anchored to the floor:

2.1 Attached to one wall. Two braces are required

2.2 Attached to one wall and stairs parallel to the wall. No braces are required

2.3 Attached to one wall and inside stairs parallel to the wall. No braces are required

2.4 Attached to one wall and stairs with landing. One brace is required

One wall and anchored to the floor

3. No walls and anchored to the floor:

3.1 Without stairs. 4 braces are required

3.2 With stairs. 3 braces are required

No walls and anchored to the floor

4. No walls and not anchored to the floor: 

4.1 Without anchoring to the floor, without walls and without stairs. Two Z braces and 4 normal braces are required.

4.2 Without anchoring to the floor, without walls and with stairs. Two Z braces and 3 normal braces are required.

No walls and not anchored to the floor


5. Three walls

Bracing kits are not required but you do need to attach it to the walls. It is important the wood floor is rounded off against the walls.

Type of wall anchor

The walls can be made of different materials, according to which one type of bolt or another must be used to attach the structure to the wall.

Type of wall anchor


M1 – CONCRETE: Screws with plastic anchors

M2 – SOLID BRICK: Screws with plastic anchors

M3 – HOLLOW BRICK: Chemical anchors

M4 – HOLLOW PARTITION WALL: Metallic expansion anchor with screw

M5 – WOOD OR BOARD: Screws can be directly used.

*(These bolts and wall plugs are not included in the kit)

Can the columns be installed moved to the corners?

Yes. The columns can be moved to the corners up to 1/5 of the total length of the structure. This feature allows you to work around the walls, switches or furniture you have on site without compromising safety.

Can the stairs be anchored to a mezzanine or construction wall?

Yes. They can be installed on a surface that is not a Mezzanines Oniline surface.

Wall anchors for concrete or brick are used to fix staircases to walls made of these materials.

The customer must bear in mind that they are responsible for the strength of the joint and structure to which they are anchored.

How are the stairs anchored to the top?

If you need to anchor the stairs to a structure that is not a MezzaninesOnline structure, see the following details about the anchors:

  • Anchor A: References that have this anchor: 30501, 30401, 31003, 31301, 31102
  • Anchor B: References that have this anchor: 
  • Anchor C: References that have this anchor: 30601, 30801

How do you turn a ladder upwards to allow passage underneath? 

The anchor that connects the ladder to the mezzanine can be fastened with 2 or 4 screws. If you opt for the 2-screw configuration, the ladder will have the ability to pivot upwards. It is important to note that in both cases the ladder retains the same strength.

This adjustment is available on all Tecrostar straight flight ladders.

With the Electrical stair lift kit compatible with Japanese, straight and side ladders, you will be able to lift your ladder in complete safety and hide it at the height of the mezzanine.

Can the angle of inclination of the ladder be changed?

Each model of stairs has an inclination and it cannot be changed unless otherwise stated. You must choose the stairs that best suit your needs.

Can the railing of the stairs be taken off?

Yes, the railing of both sides of the stairs is removable and, therefore, it can be taken off. However, MezzaninesOnline recommends to install it for security and because they provide rigidity to the stairs as well.

On the other hand, the stairs include the railing; it is not possible to acquire them without the railing.

Can the mezzanine be installed without columns or removing a column? Attached to walls

No, our mezzanines are sold with columns by default. We cannot guarantee the resistance of walls or corbels and the customer will be responsible if the product is modified in these cases.

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