Subfloor and Underlayment

Ever wonder what below grade flooring is? Well, it's not sub-standard flooring...

Ever wonder what above grade flooring is? Let's look at above-grade flooring.

For underlayment, you have lots of options--chiefly plywood. Find out how plywood underlayment can benefit your finish flooring project.

Ever wondered which type of flooring underlayment to use for which floor? We help you separate the different types of flooring underlayment in our guide.

What is subfloor, and how does it relate to the installation of wood or tile flooring?

Find out the various layers of flooring--underlayment, subfloor, finish floor, and joists.

Which is better - plywood or OSB for flooring?

We'll help you figure out floor joist spans for common sizes, using timber found at your local Lowe's or Home Depot.

Your guide to subfloor for wood, tile, laminate, and other types of interior flooring.

How do you test concrete for moisture before laying flooring?

Rather than creating your own basement subfloor from scratch (plywood, plastic, etc.), these basement subfloor tiles are an all-in-one solution. Typically, they are a sandwich consisting of a moisture barrier at the bottom, an elevating surface in the middle (usually no more than 1"), and wood top, usually OSB board. Other subfloor panels eliminate the OSB top altogether and are composed entirely…

An overview of electric radiant floor heating. Did you know that radiant floor heating isn't just for Winter?

An overview of radiant floor heating. Did you know that radiant floor heating isn't just for Winter?

Cement board is one of home renovation's greatest inventions - find out how to use cement backer board to make your tiling work go faster.

Anybody whose bare foot has met a cold tile on a winter's day has considered radiant or heated tile floors. Learn some of the basics first before ripping up your existing tile.

Sagging, sloping, and out-of-level floors are common in old houses. What causes this, how to fix it, and how much to fix?

How do I level out a garage floor?

Is OSB suited for flooring? What to the experts say about OSB (oriented stranded board) for flooring or subfloor?

A primer on radiant heating subfloor--an option for subfloor installation which will keep your feet warm throughout the winter.

Underlayment and sound - is there any way for underlayment to act as a barrier to sound from floors below?

Finding out whether it's possible to install ceramic tile right on top of plywood, without cement backerboard.