Quick answer: To replace the surface on a DIY horizontal scratcher, strip the worn cardboard or sisal down to the frame, clean out dust and staples, then fit a new cardboard insert cut to the frame or re-wrap the board in sisal rope or sisal fabric. Keep a piece of the old surface nearby for a few days so your cat recognises its spot.
Horizontal scratchers wear out in a predictable way. The middle goes first, where the cat stands and rakes, while the frame and edges look almost new. Rebuilding the whole thing wastes the part that still works. Replacing only the surface takes less time and keeps the scratcher exactly where your cat already uses it.
This guide covers both common surfaces: corrugated cardboard inserts and sisal-wrapped boards. It also covers the step most people skip, which is helping the cat accept the fresh surface without losing the habit.
When a DIY Horizontal Scratcher Needs a New Surface
- Cardboard is shredded into a hollow in the middle.
- Loose flakes come away every time the cat scratches.
- Sisal is flattened, frayed through or unwound at the ends.
- The cat has started scratching the rug or carpet next to the scratcher.
- Staples, glue or the board underneath is showing.
The last two signs matter most. A cat moving onto the rug beside a worn scratcher is telling you it still wants to scratch flat, just not on that surface. The Ohio State Indoor Pet Initiative notes that cats which scratch rugs often prefer horizontal scratchers, so keeping a good flat surface available protects the carpet.
Why Replacing Beats Rebuilding
Scratching is partly about scent. International Cat Care explains that it leaves a scent message as well as a mark, and the Ohio State Indoor Pet Initiative describes scratching as a way cats mark their territory. A scratcher in the same place with the same frame keeps that familiarity even when the surface is new.
Replacing the surface also costs less. A frame made from timber or thick plywood can take several new surfaces before it needs work.
Replacing a Cardboard Insert
- Lift or prise the old cardboard out of the frame.
- Remove any staples and scrape off old glue from the base.
- Vacuum the frame to clear dust and loose flakes.
- Measure the inside of the frame in length, width and depth.
- Cut strips of corrugated cardboard to the frame depth, with the flutes running so the cat scratches into the edges.
- Pack the strips tightly on edge, so they hold each other in place without glue.
- If they are loose, add one more strip or a thin cardboard wedge at the end.
A tight fit is better than glue. Glue-free inserts lift out in one piece next time, and there is no adhesive for the cat to chew. Our guide to the best corrugated cardboard for a horizontal scratcher explains how flute size and wall thickness affect wear.
Re-Wrapping a Sisal Board
- Pull off the old sisal rope or fabric and remove staples.
- Sand any rough patches on the board.
- For rope, staple or glue one end on the underside, then wrap tightly across the board with each turn pushed against the last.
- For sisal fabric, stretch it across the face and fix it on the underside with staples spaced closely.
- Check that every staple and rope end is underneath, where no paw can reach.
If you use adhesive, choose one suited to the material, apply it only on the underside and let it cure fully in a ventilated room before the cat uses the board. Sisal fabric is quicker to fit and gives a flat, even surface; rope gives a coarser grip some cats prefer.
| Surface | Fitting time | Feel | Replace when |
|---|---|---|---|
| Corrugated cardboard insert | Quick | Soft, shreds | Hollowed in the middle |
| Sisal rope wrap | Longer | Coarse ridges | Flattened or frayed through |
| Sisal fabric | Medium | Even, firm | Worn thin or torn |
Tools for the Job
- A flat-head screwdriver or staple remover for lifting old staples.
- A sharp utility knife, a steel ruler and a cutting mat for cardboard strips.
- A staple gun with short staples for sisal fabric or rope ends.
- Sandpaper for rough patches on the board.
- A vacuum or stiff brush for clearing dust from the frame.
Work somewhere the cat cannot reach, and count staples as you remove them so none are left on the floor. Keep cut-offs out of reach until they go in the recycling.
Flip, Rotate or Patch First
Before replacing the whole surface, check whether you can extend its life. Many cardboard inserts can be flipped over to give a fresh face. Rotating the scratcher end to end moves the worn patch away from where the cat stands. A sisal board with one frayed strip can sometimes be patched with a short length of new rope stapled underneath.
These quick fixes buy a few weeks. Once the whole face is worn, a new surface is the better option.
Helping the Cat Accept the New Surface
Put the scratcher back in exactly the same spot. Keep a scrap of the old cardboard or sisal tucked beside it for a few days so the scent is still there. Rub your hand over the new surface after stroking your cat's cheeks, and drop a little dried catnip on it if your cat responds to catnip.
Reward the first few uses with a treat or a short game. If the cat goes back to the rug, Humane World for Animals suggests making unwanted surfaces less appealing, for example with double-sided sticky tape on smaller areas, while the right surface is on offer. Our seven-day scratcher training plan gives a routine to follow.
How Often to Replace the Surface
There is no fixed timetable. A single cat that scratches gently might wear a cardboard insert slowly, while several cats sharing one scratcher will wear it much faster. Check the surface weekly and use the signs above. Writing the date on the underside of each new insert shows you how long your cats take to wear one through.
If one scratcher wears out much faster than others, it may be the most popular spot in the home. Add a second scratcher of the same type nearby so the load is shared.
Upright and Flat Together
Many cats use both flat and upright scratchers. A horizontal pad in front of the sofa and an upright post at the sofa corner cover both preferences in one spot. Our guide to vertical versus horizontal cat scratchers explains how to read your cat's preference.
If your upright scratcher is a corner piece with a replaceable mat, see how to replace the scratch mat on a corner scratcher. The CozeCat Side Table has an upright sisal face for the sofa arm that sits well alongside a flat DIY pad.
Where to Find More Scratcher Builds
Our DIY cat scratcher hub covers cardboard, sisal and wood builds, and the materials and products for cat DIY guide covers what to buy for surfaces and frames. If you are weighing up building versus buying, our comparison of a DIY scratcher side table versus buying one sets out the trade-offs.
Pair the flat pad with an upright If your cat scratches both the rug and the sofa arm, the CozeCat Side Table adds an upright sisal face at the sofa while your DIY pad covers the floor. Next-day shipping is included. You can send it back within 30 days if needed, paying the return shipping yourself.
Horizontal Scratcher Refill FAQ
How do I know when to replace a horizontal scratcher surface?
Replace it when the cardboard is hollowed out in the middle, sisal is flattened or frayed through, staples or the board are showing, or your cat starts scratching the rug next to it. Check weekly. Flipping or rotating the surface can buy a few weeks first.
Should I glue a new cardboard insert in?
Usually not. Cut corrugated strips to the frame depth and pack them tightly on edge so they hold each other in place. A tight, glue-free fit lifts out in one piece next time and leaves no adhesive for the cat to chew. Add a wedge if the strips feel loose.
Will my cat use the scratcher after I replace the surface?
Most will, if the scratcher stays in exactly the same spot. Keep a scrap of the old surface beside it for a few days, rub the new surface with your hand after stroking your cat's cheeks, and reward the first few uses with a treat or play.
Is sisal rope or sisal fabric better for re-wrapping?
Both work. Sisal fabric is quicker to fit and gives an even surface; rope takes longer and gives coarser ridges that some cats prefer. Whichever you choose, keep every staple and rope end on the underside, and let any adhesive cure fully in a ventilated room.
