Chair Mat Heavy Duty for Carpet With Underlay 1130 x 1340mm keyhole shape 12 Year Warranty

Chair Mat for thick, deluxe, plush pile carpet

Chair Mat Heavy Duty for Carpet With Underlay 1130 x 1340mm keyhole shape 12 Year Warranty

incl. GST
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Ships within 24 hours.
  • Buy 5 for $199.00 each  save 10%
  • Buy 10 for $179.00 each  save 20%
  • Buy 20 for $161.00 each  save 28%

Where to use:

  • Carpet With Underlay
  • Under Chairs on Carpet Floors

Quick Overview

** Please note: This product is out of stock and will be placed onto backorder until more stock arrives. Current ETA is late November.**


Made in USA. BPA and Phthalate FREE! Greenguard Certified for low emissions and low odour. The Thickest & Most Durable Chair Mat available 8.4mm total thickness and 5.3mm excluding the grippers. This chair mat is designed for use on carpet floors with underlay up to 30mm thickness. Made from extruded PVC, these mats have a clear finish are long lasting. Covered by a 12 year warranty. Shipped flat packed for immediate use, NOT rolled up.


Product #: 17400064

Made in USA and made from ultra-thick PVC this mat is suitable to use on carpet with underlay that is up to 30mm total thickness. The textured surface provides a scuff resistant finish and the grippers anchor these mats in place on your carpeted floor to prevent them from slipping or moving around as you wheel the chair. On all sides of the mat the edges are ramped, this prevents a possible trip hazard and also makes wheeling on or off the mat easier.

Like all the Heavy Duty chair mat range, this mat is made from pure PVC, this means that the materials used in producing are safe and non-toxic. The mats are suitable for use in confined offices, workstations or the home office. The PVC has been extruded twice to give it a clean and clear finish and remove any imperfections that cause the mat to prematurely crack.

To maintain these chair mats simply mop or clean with a soft cloth dampened with water, listed in the cleaning instructions is full details.

These mats are stored and delivered flat so that they can be put to use immediately.

The Underlay that we refer to is a foam layed under domestic carpet to give it a nice soft feel. When carpet has underlay it gives an extra layer of softness and when you sit on your chair on top of a chairmat there is more chance for the chair mat to crack as the wheels depress into the soft surface, hence the chairmat needs to be thicker to prevent the cracking.

If you are using this mat in your home, you will most certainly have underlay under your carpet and require the thicker mat which is designed for Carpet and underlay.

You can also check the depth of your carpet and underlay using the instructions from our video -

If you carpet and underlay is >12mm you require the Heavy Duty Chairmat for carpet with underlay


Additional Information

Usage Carpet With Underlay, Under Chairs on Carpet Floors
Thickness 8.4mm
Despatch Time Ships within 24 hours.
Cleaning Instruction

To maintain these chair mats simply mop or clean with a soft cloth dampened with water

Delivery & Returns

Express Delivery To Your Door calculated at checkout



Fast Delivery times


We offer a Same Day Turnaround on stock items (excluding custom made mats). This means that if the order is placed before 1.30pm the order will be despatched the same day!

Mat Shop delivers to all physical locations across Australia, due to the size and bulkiness of the items that we ship we are unable to deliver to your Post Office box.


Below is a list of locations throughout the country and the estimated transit times:

Victorian Metro Areas 1 business day

New South Wales Metro Areas 1 business day

Queensland Metro Areas 1 business day

Australia’s Capitol Territory 1 business day

South Australia Metro up to 2 business days

Tasmania up to 8 business days

Western Australia Metro up to 5 business days

Northern Territory up to 7 business days

Victorian Regional up to 2 business days

New South Wales Regional up to 3 business days

South Queensland Regional up to 3 business days

North Queensland Regional up to 6 business days

Western Australia Regional up to 10 business days



Easy Returns


For your peace of mind, we offer a 365 Money Back Guarantee on purchases of stocked mats 

1. Please contact the Mat Shop returns team by email [email protected] within 365 Days from the date of reciept. To make it as easy as possible for you please follow the directions of our returns staff and complete the relevent documentation to get the process underway and a refund is issued in the quickest possible time.

2. The customer is required to pay any freight charges incurred in the transaction.

3. The 365 Day period begins from the date of order.

4. When a refund request is approved the goods must be despatched to Mat Shop within 5 days of the request being granted.

5. The goods must not have been used and must be returned in the original packaging, with all accessories and in re-saleable condition. 

6. Customers are required to return the products for which they are seeking a refund at their own cost or Mat Shop Pty Ltd can provide a pick up of the goods with our prefered carriers at the customer’s expense. If the item was sold with Free Shipping, only the freight back to Mat Shop Pty Ltd will be charged.

7. After receipt and inspection of the return, Mat Shop Pty Ltd will issue a refund as soon as is reasonably practicable and the customer will be provided with e-mail acknowledgement. Where possible, refunds will be processed by reversing the initial customer transaction. Mat Shop Pty Ltd accepts no responsibility for any delays that may occur in receiving the refund as a result of any third-party payment gateway.

8. Please choose carefully when ordering custom made items. As these items are customised to your specifications, they are not able to be resold and will not be able to be refunded.


12 year written warranty when used on carpet and underlay 30mm and under total depth.Full terms and conditions can be found on our warranty which is sent with the mat or can be emailed on request. For information on how to check your carpet view our video here:


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