Installation planning

Can You Put Timber Flooring Over Underfloor Heating?

By Design Timber Flooring · Updated 23 October 2026 · 6 min read

Timber can work over hydronic or electric underfloor heating when the products are approved. What to check on temperature limits, commissioning and fixing.

Timber flooring can be used over underfloor heating, but only when the flooring product, the heating system and the installation method are confirmed as compatible by their manufacturers. Engineered timber is often the product considered for heated floors, while solid timber is approached with more caution. Surface temperature limits, start-up procedures and adhesive or underlay choices all come from the manufacturers' documentation, not from a general rule.

This guide covers the questions to settle before the floor is ordered, so the heating and the timber are planned together rather than one after the other.

Can timber flooring go over underfloor heating?

It can, provided the specific product is approved for use with underfloor heating and the installation follows the instructions of both the flooring and heating manufacturers. Timber moves as it gains and loses moisture, and heat dries timber out. A heated floor therefore asks more of the timber than an unheated one. Products that are designed for this use, installed in the conditions their manufacturers specify, are the starting point.

If the documentation for a product does not mention underfloor heating, or excludes it, treat that as a reason to choose a different product rather than proceeding.

Hydronic or electric: does it matter?

Both types can be paired with timber, but they are installed and controlled differently.

Point	Hydronic (water-based)	Electric
How heat is produced	Warm water through pipes in or under the subfloor	Heating cables or mats
Typical location	Often in a concrete slab or screed	Often closer to the surface, under the floor or in a screed
Response time	Usually slower to warm and cool	Often quicker to respond
What to confirm	Slab drying, commissioning, controls	Mat or cable compatibility with the floor and underlay

The heating supplier's instructions decide how the system is laid and controlled. The flooring manufacturer decides whether its product can sit over that system and how it must be fixed. Both sets of documents should agree before installation goes ahead.

Engineered or solid timber over underfloor heating?

Engineered timber has a real timber wear layer bonded to a core designed for stability, which is why it is commonly the product considered for heated floors. Not every engineered product is approved for underfloor heating, though, so check the specific range.

Solid timber reacts more to changes in moisture and temperature across its full thickness. Some manufacturers and installers will not support solid boards over heating, and others only under particular conditions. Our guide to solid vs engineered timber explains the wider differences, and choosing engineered timber flooring covers what to look for in a specification.

What surface temperature limits apply?

Each flooring manufacturer sets its own maximum surface temperature for its products, and some also give guidance on the heating controls. These limits vary, so there is no single figure that applies to every floor. Ask for the limit in writing for the product you are considering, and make sure whoever sets up the heating controls knows it.

Rugs and heavy furniture can trap heat on the floor beneath them. Check the manufacturer's guidance on rugs over a heated timber floor.

Glue-down or floating over heating?

Both methods are used, depending on the product and the heating system. The adhesive or underlay must be suitable for underfloor heating, and some underlays reduce heat transfer more than others. Our guide to glue-down vs floating engineered timber explains the general trade-offs. The manufacturer's instructions for the heated application take priority.

What happens before the timber is laid?

Commissioning and preparation are usually done before installation. Typical steps, which should be confirmed against the heating and flooring manufacturers' instructions, include:

Subfloor drying. A new slab or screed needs time to dry, and the heating supplier may specify a procedure for this. Moisture is checked before the floor goes down. Our subfloor preparation service covers this stage.
Commissioning the heating. The system is run and tested before flooring, often following a gradual warm-up schedule from the supplier.
Heating setting during installation. Manufacturers often specify whether the heating should be off, low or at a set point while the floor is installed.
Acclimatisation. Some products need time on site before installation. Follow the manufacturer's instructions rather than a general rule.
Gradual start-up afterwards. Heating is usually brought back up slowly over a period set out in the documentation.

How should you run a heated timber floor?

Raise and lower the temperature gradually at the start and end of each heating season.
Keep within the manufacturer's surface temperature limit.
Avoid large daily swings where the controls allow.
Expect some seasonal movement, such as small gaps in drier months.
Keep the documentation for the product, the heating and the controls together.

Underfloor heating: checklist

The flooring product's documentation approves it for underfloor heating.
I know whether the system is hydronic or electric, and who supplied it.
I have the maximum surface temperature for the product in writing.
The adhesive or underlay is suitable for heated floors.
The heating has been, or will be, commissioned before the floor is laid.
I know the start-up schedule after installation.

What to have ready for a quote

The type of heating, its supplier and any installation documents.
Whether the system is already installed or still being planned.
The subfloor type, such as a slab, screed or timber.
A floor plan and the rooms to be heated.
The flooring products you are considering, including any herringbone or chevron layout.
Your suburb. Check our service areas.

Common questions

Can you put timber flooring on underfloor heating?

Yes, provided the flooring manufacturer approves the specific product for use with underfloor heating. The installation must follow both the flooring and heating manufacturers' instructions. If a product's documentation excludes underfloor heating, choose a different product.

Is engineered or solid timber better for underfloor heating?

Engineered timber is commonly considered for heated floors because its construction is designed for stability. Not every engineered product is approved, so check the specific range. Solid timber is approached with more caution, and some manufacturers do not support it over heating.

What is the maximum temperature for timber floors with underfloor heating?

Each flooring manufacturer sets its own maximum surface temperature, so there is no single figure for every floor. Ask for the limit in writing for your chosen product. Make sure whoever sets up the heating controls knows it.

Does hydronic or electric underfloor heating work better with timber?

Both can be paired with timber when the products are compatible. Hydronic systems are often in a slab and slower to respond, while electric systems are often closer to the surface. The heating and flooring documentation should agree before installation.

Should underfloor heating be on when timber is installed?

Manufacturers usually specify whether the heating should be off, low or at a set point during installation. The system is normally commissioned and tested before the floor is laid. Follow the documented start-up schedule afterwards.

Will timber over underfloor heating gap or crack?

Heat dries timber, so some seasonal movement such as small gaps is possible. Gradual temperature changes and staying within the manufacturer's limits help reduce stress on the boards. An approved product and correct installation are the starting point.