Use a miter saw.
How to laminate floor joists.
Or if separating floor from subfloor is causing the creak drive two nails at opposite 45 degree angles into joists which you can locate with a stud finder.
Joist span and spacing is set by your local building code.
If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists.
Check the manufacturer s instructions.
Address any subfloor problems before doing any type of laminate floor installation.
Tack a beam under the sagging joists.
Floor joists are installed early in the building process and this work is typically done by the framing carpenter since it is part of the structure of the home.
If the hump isn t due to underlayment adhesion or subfloor delamination it could be the result or one or more broken or cut joists.
A day until they re level.
That said some times it s not possible to.
Some floor humps signal structural problems.
Then set new joists same height as existing ones alongside the old.
Most directions recommend running laminate flooring perpendicular to floor joists.
It will depend on the spacing of your joists.
While most residential construction uses 2x8 joists with 16 inch spacing there are many other factors you need to consider when determining the proper joist span length.
Nailing two 2x4s together will work to span about three joists unless the sag is under a weight bearing wall.
Easy to install tongue and groove planks add architectural interest to a vaulted ceiling.
Stagger the end joints of planks for a more professional look as you would when laying a hardwood floor.
When building a house or even a deck it is important to confirm you have the correct joist sizes spans and spacing before you get started.
Installing a laminate wood ceiling.
Then fill the holes with wood filler.
Set a hydraulic jack and post under the beam and jack up the joists about 1 8 in.