24mm or 28mm Door Panel: Which Thickness Do I Need?

Match the panel to the glazing rebate rather than choosing by preference. If the door frame takes a 28 mm unit, a 28 mm panel generally insulates slightly better. A 24 mm panel suits frames set up for it. Measure the rebate depth and the existing panel before ordering.

How do I measure the panel thickness?

Remove the glazing bead on one side with a bead knife or putty knife
Lift out the panel or glass unit
Measure its thickness with callipers or a steel rule
Measure the rebate depth in the door leaf
Note the width and height with the beads off

What happens if the thickness is wrong?

The glazing beads may not clip back in
The gaskets may not seal, so water and air get in
The panel may rattle or sit proud of the frame

What else should I specify on the order?

Give the panel size, colour, any decorative finish and the profile system if known. Check which thicknesses the profile maker supports. For panel and uPVC door supply, call the Worthing trade counter at Unit 1, Friar Walk.

Need a trade price? Call the trade counter on 01903 262 636 or visit us at Unit 1, Friar Walk, Worthing. We offer free delivery within 30 miles.

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MLI Building Products LTD

4.6

Based on 15 reviews

review us on

Peter Hughes

2 years ago

Davyd Oddy

3 years ago

Great service and products from super friendly staff. Specials thanks to Loretta and Stephen

Stephen Gale

4 years ago

Great service good bunch lads

Response from the owner

4 years ago

Thanks Steve.

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4 years ago

Kimberleyjanep

4 years ago

So helpful - Steve was so patient while I chose my new front door - which was installed by PBM Exteriors who recommended MLI. I cannot emphasise how much my new and very contemporary front door makes the house look so modern and 'new'. Just huge thanks for great service and an amazing grey anthracite grey front door and side panels!

Response from the owner

4 years ago

You were very welcome Kim. It was our pleasure.

Elliott Prior

5 years ago

Response from the owner

5 years ago

Thank you Elliott

Richard Jones

5 years ago

Great people to do business with!

Response from the owner

5 years ago

Thank you Richard.

penelope strachan

6 years ago

So pleased I found MLI to supply the windows and doors for my property renovation, Excellent Prices, far more competitive than any other quote I had. Service from Steve & Loretta was amazing, nothing was too much trouble. Everyone compliments us on the fantastic windows. I highly recommend. Thank you so much

Response from the owner

6 years ago

Hi Penelope. Thank you very much. 👍🏻