FAQ
TL;DR: Use 4–5 mm pegs to mount rail‑guided threshold/side strips; “4–5mm pins are enough.” If glue failed, choose quick‑assembly pegs sized to the guide and protect MDF veneer. [Elektroda, zdzichra, post #17010438]
Why it matters: This helps DIYers fix loose thresholds without replacing flooring or damaging fragile MDF veneers.
Quick Facts
- Recommended peg diameter: 4–5 mm for secure mounting. [Elektroda, zdzichra, post #17010438]
- Typical dowel length: 40–50 mm; plan 4–5 pins per strip; coarse‑pitch screws grip well. [Elektroda, Radiokiller, post #17011241]
- If the strip has bottom guides, use quick‑assembly pins and match the head to the rail. [Elektroda, Radiokiller, post #17010448]
- MDF‑veneered trims are fragile—avoid direct blows or they can crack like paper. [Elektroda, saskia, post #17012488]
- Floor anchoring needs longer dowels; skirting‑board pins are usually too short; dry screed can take screws. [Elektroda, telecaster1951, post #17014665]
What peg diameter fits rail‑guided threshold or side strips?
Start with 4–5 mm pegs; this size is reported as sufficient for these slats. [Elektroda, zdzichra, post #17010438]
What are “quick‑assembly” pins, and when should I use them?
Use them when the strip has bottom guides for screw heads. You can adjust the head shape to fit the rail. If the strip isn’t metal, the approach differs, so share a cross‑section photo for best advice. [Elektroda, Radiokiller, post #17010448]
How long should the dowels be when fixing through the floor?
Use dowels long enough to pass the strip, cross the floor, and anchor in a solid layer. Skirting‑board pins are usually too short. With a dry screed, you can screw directly into it. [Elektroda, telecaster1951, post #17014665]
How many pegs do I need per strip, and why?
Use 4–5 pegs per strip. Quick‑assembly screws have a coarse pitch that grips well and reduces spinning. “Relatively large thread pitch” improves bite. [Elektroda, Radiokiller, post #17011241]
Will hammering damage wood‑grain MDF threshold strips?
Yes. Do not strike MDF‑veneered strips directly; they can crack “like paper.” Use protective padding if tapping is unavoidable. [Elektroda, saskia, post #17012488]
How do I mount a wood‑grain MDF strip with quick‑assembly pins (3 steps)?
- Size the rail and choose pins that fit; if needed, pick slightly larger pins and file the heads to suit.
- Target 40–50 mm dowels and plan 4–5 pegs per strip. Keep the strip parallel to the floor.
- Place carpet over the veneer and tap along the length from frame to frame to seat it.
[Elektroda, Radiokiller, post #17011241]
Can I use skirting‑board mounting pins for this job?
The head might fit, but those pins are usually too short. You must drill the floor and use dowels long enough to anchor securely. With dry screed, you can screw instead. [Elektroda, telecaster1951, post #17014665]
What if I have underfloor heating beneath the threshold?
Avoid deep drilling near heating pipes, or you can “make a mess.” Use more pins of shorter length to reduce risk. [Elektroda, Radiokiller, post #17014686]
Can I buy replacement pegs after throwing the originals away?
Yes. Replacement pins are sold separately; reported price was about 2 PLN per piece. Drill a hole and drive the pegs; universal pins can also work. [Elektroda, telecaster1951, post #17014752]
Is buying a new strip with factory pins a good fix, and what does it cost?
It’s a viable option. A threshold strip with factory plastic screws was reported at about 25 PLN. This restores the complete mounting kit if originals are missing. [Elektroda, diabeel, post #17014712]
Are metal threshold strips more durable?
Yes. If buying new, a metal strip is recommended; it uses steel screws for stronger fastening. [Elektroda, Radiokiller, post #17014727]
What do the “guides” or “rails” on a strip do?
They are bottom channels that accept screw heads for quick‑assembly fastening. Choose pins whose heads match and seat into that rail. [Elektroda, Radiokiller, post #17010448]
What drilling is needed before driving the pegs?
Pre‑drill holes at the marked positions, then drive the quick‑assembly pegs. If factory pegs fail, standard universal dowels can replace them. [Elektroda, telecaster1951, post #17014752]
