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How to Fit Underlay and Gripper to your Staircase

Use our simple step by step instructions in the video below to fit underlays and grippers for your staircase. If you have any trouble, call us for free expert advice.

How to lay underlay gripper 

If you are wanting to fit a stair runner you will first need to know how to lay underlay. Underlay allows for a softer and quieter installation process and here at Carpet Runners, we have mastered the art of it. This is our step by step guide of how to fit underlay to stairs. 

What you will need

Have a look in your toolbox because you will need the following materials

  • Tape measure 

  • Hammer

  • Knife 

  • Snips 

  • Pencil 

  • Staple Hammer 

  • Carpet Grippers

  • Underlay 

Step 1 - Cut the gripper to size 

Mark out the width of the runner on the step making sure that it is central to the step. The last thing you want is for your runner to be wonky. Now that you know your measurements you can measure and mark out the carpet gripper. It is important to mark the gripper 2cm shorter than the width of your runner otherwise the gripper will stick out the side of the runner and will not only look bad but could potentially cause injury. 

Cut along the pencil marks and cut out a second gripper using the first as a measuring basis. This will ensure that your grippers are identical in length which is exactly what you want. 

Step 2 - Compare the gripper to the runner

Compare your cut gripper to your runner by placing the gripper over the runner. You should have 1cm at each end of the runner which will act as a spacer. 

Step 3 - Place the gripper to the step. 

You can now place the gripper onto the step, make sure that the spikes are facing toward the riser (vertical part of the step). Leave a finger’s width between the gripper and the riser before you secure it into place. Be wary of the spikes on the gripper when measuring this as they can hurt if you spike yourself in the process. Using a nail and hammer you can then secure the gripper into the step. Secure at both ends and the middle to ensure that the gripper stays in place. 

Step 4 - Place the second gripper into place 

Place the second gripper into position. You will need to make sure that the spikes on the gripper are facing towards the step. Once again, use a finger width as a measurement between the grippers. Be careful not to spike yourself on the gripper which is on the base of the step when doing so. Hammer the second gripper into the riser at both sides and the middle. 

Step 5 - Measure the distance between the grippers

This step will help you to measure how much underlay you will need to install. Measure the distance between the step and riser grippers with your tape measure. 

Step 6 - Mark the underlay for cutting 

Once you have the measurements between the grippers you can mark the underlay. Mark the width of the grippers. Then using your measurement you can mark the length onto the underlay. Cut this section of underlay with the scissors and place any loose bits into the bin. 

Step 7 - Place into position 

You can then go ahead and place the underlay onto the tread. Flush against the gripper and staple the underlay into position. Fold the remaining section of underlay down onto the step and pin the bottom to the riser. 

Step 8 - Continue down the stairway 

Complete this process for every step until your entire stairway is complete. You have successfully completed your first underlay installation. Now you will be wanting to know how to fit your carpet stair runner – head over to our how to lay your stair runner guide for more information.

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