1. Not buying enough carpet
Always add 10% for wastage on plain carpets and 15–20% for patterned carpets where the pattern must be matched across seams. Running short of carpet part-way through a job and needing a second delivery risks colour variation between dye lots — a problem that cannot be fixed after fitting.
2. Reusing old gripper rods and underlay
Old underlay that has been compressed over years loses its cushioning and insulation properties — fitting new carpet on top is a false economy. Bent or corroded gripper rods will not hold carpet securely. Budget to replace both with new carpet.
3. Choosing carpet on appearance alone
A carpet that looks good in a showroom may be entirely wrong for a hallway or stairs. Always check the density, twist rating and wear rating alongside the appearance, and ask your fitter's advice before deciding.
4. Fitting carpet before decorating
If you are redecorating a room, fit carpet last. Dripping paint on new carpet is one of the most avoidable fitting mistakes. New carpet should also be left 24–48 hours after delivery before fitting if it has been tightly rolled, to allow it to relax.
5. Not measuring properly
Rooms are rarely perfectly rectangular. Always measure the widest points in both directions, not just one corner. Alcoves, bay windows and awkward angles all need to be accounted for. If in doubt, have the fitter measure before ordering.
6. Ignoring the door clearance
New carpet plus quality underlay typically adds 10–15mm to floor height. If doors open over the carpeted area, they may need trimming at the bottom. Ask your fitter to check door clearances when quoting, not after fitting.
7. Not removing furniture properly
Attempting to fit carpet around furniture creates poor edges and can damage the carpet. Clear the room properly — it makes the job faster, cheaper and the result far neater.